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Loose Gemstones For Sale
6.15 Carat Natural Loose Green Tourmaline With Lagoon Shade Emerald Shape Gem
Located in Peshawar, PK
Loose Bright Green Tourmaline Weight: 6.15 Carats Dimension: 11.4 x 8.8 x 7.6 Mm Colour: Bright Green Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a cap...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.40 Carat Natural Loose Spessartine Garnet Oval Shape Gem For Ring Jewellery
Located in Peshawar, PK
Loose Spessartine Garnet Weight: 2.40 Carats Dimension: 8.7 x 6.9 x 4.6 Mm Colour: Orange Treatment: Non Shape: Oval Certificate: On Demand Spessartine garnet, often referred to si...
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gemstones

Materials

Mandarin Garnet, Garnet

9.25 Carat Natural Loose Golden Topaz Cushion Shape Gem For Necklace Jewellery
Located in Peshawar, PK
Loose Topaz Weight: 9.25 Carats Dimension: 12.1 x 11.5 x 8.4 Mm Origin: Skardu, Pakistan Shape: Cushion Color: Golden Treatment: Non Certificate: On Demand Golden Topaz is a radian...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

2.40 Carat Natural Loose Madeira Citrine Round Shape Gem For Ring Jewellery
Located in Peshawar, PK
Loose Madeira Citrine Weight: 2.40 Carats Dimension: 8.4 x 8.4 x 6.1 Mm Colour: Orange Shape: Round Certificate: On Demand Madeira citrine, a g...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

Glamorous Loose 13.10 Carat Sky Blue Topaz Asscher Cut Gem For Necklace Jewelry
Located in Peshawar, PK
Loose Blue Topaz Weight: 13.10 Carats Dimensions: 12.9 x 11.2 x 9.6 Mm Origin: Brazil Shape: Asscher Color: Blue Treatment: Non Certificate: On Demand Benefits Of Wearing Blue Topaz...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Blue Topaz

1.20 carats Bluish Gray Spinel Stone Cushion Cut Natural Gemstone from Burma
Located in Bangkok, TH
Weight 1.20 carats Dimensions 6.7x6.1x3.8 mm Treatment none Origin Burma Clarity VVS Shape cushion Cut fancy cushion Spinel, like garnet and diamond, is singly refractive, wi...
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

HRDAntwerp certified 2.00 carat Emerald Shape Natural Diamond F SI1
Located in Dubai, UAE
We are natural diamond production company located in Dubai. Weight: 2.00ct Shape: Emerald Color: rare white + (F) Clarity: SI1 Polish: Very Good Symm: Excellent Dimensions (mm): 7.87...
Category

21st Century and Contemporary Emirian Modern Loose Gemstones

Materials

Diamond, White Diamond, Emerald

2.56 TCW Oval Ruby Burma No Heat
Located in New York, NY
ITEM DESCRIPTION ID #: NYC57872 Stone Shape: Oval Diamond Weight: 2.56 Carat Measurements: 9.01 x 6.93 x 4.64 mm Appraisal Value: $7000 Our Price: $3500 A free online appraisal i...
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Ruby

Natural Diamond, 0.50 carat brilliant cut and GIA certified
Located in Ciudad De México, MX
Diamond Loose Gemstone Natural 0.50 Carat Brilliant cut GIA Certified Dimensions: 5.02- 5.08 x 3.17 mm Color: G Clarity: VVS2 Cut Grade: Very Good We can customize a ring or pie...
Category

2010s Unknown Loose Gemstones

Materials

Diamond

3.50 Carat Natural Loose Bi Color Tourmaline long Emerald Shape Gem For Pendant
Located in Peshawar, PK
Loose Bi Colour Tourmaline Weight: 3.50 Carats Dimension: 15.3 x 6 x 4.2 Mm Colour: Green And Yellow Origin: Africa Certificate: On Demand Treatment: Non Tourmaline is a captivati...
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.20 Carat Natural Loose Lagoon Seafoam Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Seafoam Tourmaline Weight: 3.20 Carats Dimension: 12.5 x 6.6 x 4.4 Mm Colour: Greenish Blue Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captiva...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Elongated 2.32 Carat Brazilian Opal Loose Gemstone Oval 13x7mm
Located in Columbus, OH
Presenting a 2.32 carat oval brazilian opal gemstone! Nothing beats this gem’s play-of-color! This gemstone is ideal for creating elegant and enchanting jewelry pieces! Specificati...
Category

2010s American Modern Loose Gemstones

Materials

Opal

2.25 Carat Natural Loose Green Tourmaline Emerald Shape Gem From Afghanistan
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.25 Carats Dimension: 9.2 x 5.9 x 4.9 Mm Colour: Green Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating gemston...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Top AAA 5.30 Carat Natural Loose Bright Mint Green Tourmaline Cushion Shape Gem
Located in Peshawar, PK
Loose Bright Green Tourmaline Weight: 5.30 Carats Dimension: 11.9 x 8 x 6.8 Mm Colour: Green Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating g...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Best Quality 2.80 Carat Natural Loose Emerald Gemstone May Birthstone
Located in Peshawar, PK
Loose Emerald Weight: 2.80 Carats Dimensions: 8.1 x 8 x 5.6 Mm Origin: Swat Pakistan Shape: Square Color: Green Treatment: Non Certificate: On Demand The Swat Emerald...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Emerald

Rare Color 6.50 Carat Natural Loose Seafoam Tourmaline Cushion Shape Gem
Located in Peshawar, PK
Loose Seafoam Tourmaline Weight: 6.50 Carats Dimension: 11.8 x 9.3 x 7.5 Mm Colour: Blue Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating gemst...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Natural Hessonite Garnet Gemstone 2.070 Carats Garnet Gemstone from Madagascar
Located in Bangkok, TH
Natural Hessonite Garnet Gemstone of 2.070 carats from Madagascar has a wonderful cut in a Octagon shape, incredible orange color, Great brilliance. Th...
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet, Hessonite

7.33 Carat Ethiopian Opal Gemstone Oval 17x12.5mm Loose Gemstone
Located in Columbus, OH
Presenting a 7.33 carat ethiopian opal loose gemstone. Nothing beats this gem’s play-of-color! This gemstone is ideal for creating elegant and enchanting jewelry pieces! Specificat...
Category

2010s American Art Deco Loose Gemstones

Materials

Opal

12.00 Carat Natural Loose Seafoam Tourmaline Cushion Shape Gem For Necklace
Located in Peshawar, PK
Loose Seafoam Tourmaline Weight: 12.00 Carats Dimension: 13.4 x 12.7 x 9.2 Mm Colour: Blue Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating gem...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

15.90 Carats Blue Cat’s Eye Tourmaline Stone Oval Cut Natural Afghan Gemstone
Located in Bangkok, TH
Weight 15.90 carats Dimensions 17.4x13.1x8.1 mm Treatment none Origin Afghanistan Diaphaneity Translucent Shape oval Cut cabochon The 15.90 carats Blue Cat’s Eye Tourmaline ...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Cat’s Eye

Alexander Beverly Hills GIA Certified 5.14 Carat Emerald Cut Diamond
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking. Crafted by some of the most prestigious bench jewelers in ...
Category

2010s Modern Loose Gemstones

Materials

Diamond, White Diamond

1.01 Carat Brazilian Opal Loose Gemstone Marquise 13x5mm
Located in Columbus, OH
Presenting a 1.01 carat marquise shape brazilian opal gemstone! Nothing beats this gem’s play-of-color! This gemstone is ideal for creating elegant and enchanting jewelry pieces! S...
Category

2010s American Art Deco Loose Gemstones

Materials

Opal

Certified Old Mine Cut Diamond, 1.73 Carat F VS2
Located in Antwerpen, BE
Please revise all the details, photos, videos, and certificate carefully and familiarize yourself with our KYC Policy, below. Every diamond we offer has a captivating story to tell ...
Category

Early 18th Century Unknown Artisan Antique Loose Gemstones

Materials

Diamond, White Diamond

No Reserve Beautiful Sphene 4.60 ct Madagascar SI
Located in Bangkok, TH
Introducing a dazzling 4.60 ct Sphene gemstone from Madagascar, boasting a mesmerizing greenish-yellow hue. With SI clarity, it showcases vibrant sparks of yellow, green, and orange,...
Category

2010s Malagasy Loose Gemstones

Materials

Other

HRDAntwerp certified 1.01 and 1.03 carat Cushion Shape Pair of Natural Diamond
Located in Dubai, UAE
We are natural diamond production company located in Dubai. Ideally matching Pair of 2 Cushion shape natural diamonds Cushion shape natural diamond 1: Weight: 1.01 ct Shape: Cushion ...
Category

21st Century and Contemporary Emirian Modern Loose Gemstones

Materials

Diamond, White Diamond

1.80 Carats Pinkish Red Loose Garnet Stone Oval Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
Weight 1.80 carats Dimensions 8.3x7.3x4.3 mm Treatment none Origin Tanzania Clarity VVS Shape oval Cut custom precision The Pinkish Red Garnet Stone is a radiant gem of exqu...
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

Pale Blue Emerald Cut Natural Aquamarine Gemstone, 9.60 Ct for Necklace Pendant
Located in Peshawar, PK
GEMSTONE TYPE: Aquamarine PIECE(S): 1 WEIGHT: 9.60 Carats SHAPE: Step Emerald Cut SIZE (MM): 17.99 x 9.73 x 7.14 COLOR: Pale Blue CLARITY: Eye CLean TREATMENT: None ORIGIN: Pakistan...
Category

21st Century and Contemporary Pakistani Contemporary Loose Gemstones

Materials

Aquamarine

GIA Certified Paraiba Tourmaline 1.52 Carat Natural
Located in Laguna Niguel, CA
It comes with the Original GIA Certificate Natural Paraiba Tourmaline Carat Weight: 1.52 Carats Measurements: 6.99 x 6.13 x 5.57 mm
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline, Paraiba

Natural 18.10 Carat Mix Fancy Pink Yellow Green Orange Gray Purple Diamond Set
Located in Houston, TX
One parcel containing... In new condition. 166 Loose Diamonds Shapes: Oval, Cushion, Radiant, Pear shape, Princess, Heart Shape Color Grade: Fancy Intense, Fancy Deep, Fancy, Fancy ...
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

Elongated 15.86 Carat Rutilated Quartz Loose Gemstone EM 20x15mm
Located in Columbus, OH
Presenting an elongated emerald cut 15.86 carat rutilated quartz loose gemstone! This gemstone exhibits a rectangular shape with precise facets that accenture it's clarity and brilli...
Category

2010s American Modern Loose Gemstones

Materials

Quartz

Elongated 1.36 Carat Tri-color Tourmaline Gemstone Pink, White & Green EM 9x5mm
Located in Columbus, OH
Presenting an elongated emerald cut 1.36 carat tourmaline gemstone! This gemstone exhibits a range of colours such as green, white and pink. It's elongated form makes it suitable f...
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Tourmaline

2.96 Carats Paraiba Tourmaline Oval Cut Natural Mozambique Stone AIGS Certified
Located in Bangkok, TH
Weight 2.96 carats Dimensions 11.49x6.83x4.38 mm Treatment none Origin Mozambique Clarity VVS Shape Oval Cut Oval Behold the mesmerizing beauty of this 2.96 carats Paraiba Tou...
Category

21st Century and Contemporary Mozambican Modern Loose Gemstones

Materials

Tourmaline, Paraiba

10.56 Carats Bright Red Garnet Stone Cushion Cut Natural Madagascar's Gemstone
Located in Bangkok, TH
Weight 10.56 carats Dimensions 13.3x11.8x7.47 mm Treatment none Origin Madagascar Clarity VVS Shape cushion Cut fancy cushion The captivating allure of this exquisite gemsto...
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet

Lustrous Loose Ametrine Stone 13.035 Faceted Ametrine Flawless Loupe Clean
Located in Bangkok, TH
Lustrous Loose Ametrine Stone of 13.035 carats from Bolivia has a wonderful cut in a Oval Like shape, incredible Bi-color. Great brilliance. This gem is...
Category

21st Century and Contemporary Bolivian Modern Loose Gemstones

Materials

Other

14.75 Carat Natural Loose Citrine Cushion Gem For Necklace Jewellery
Located in Peshawar, PK
Loose Citrine Weight: 14.75 Carats Dimension: 16.4 x 16 x 10 Mm Origin: Brazil Colour: Yellow Treatment: Non Certficate: On Demand Shape: Cushion Citrine, a radiant and versatile ...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

Lovely Green Emerald for Ring 1.50 Ct Afghan Emerald Gemstone for Jewelry
Located in Bangkok, TH
Lovely Green Emerald For Ring, Available For Sale At wholesale Price Natural High Quality, 1.50 Carats Natural Emerald From Afghanistan. Product Information: GEMSTONE TYPE: Lovely G...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Emerald

10.60 Carat Natural Loose Amethyst Emerald Shape Gem For Necklace Jewellery
Located in Peshawar, PK
Loose Amethyst Weight: 10.60 Carats Dimension: 16.4 x 11.7 x 7.8 Mm Colour: Purple Origin: Brazil Treatment: Non Certificate: On Demand Shape: Emerald Amethyst, a stunning variety ...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

1.50 Carats Gray Burmese Spinel Stone Cushion Cut Natural Gemstone
Located in Bangkok, TH
Weight 1.50 carats Dimensions 7.4x6.4x4.5 mm Treatment none Origin Burma Clarity VVS Shape cushion Cut fancy cushion The 1.50 carats Gray Burmese Spinel Stone is a captivati...
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

GIA Certified Carved Colombia Emerald Loose Stone Weighing 4.35 Carats
Located in New York, NY
Introducing our exquisite GIA certified carved Colombia Emerald loose stone, a true masterpiece of nature. This captivating gem weighs a remarkable 4.35 carats, making it a truly val...
Category

20th Century Colombian Contemporary Loose Gemstones

Materials

Emerald

Beautiful Open Color Spinel Oval
Located in Bangkok, TH
Introducing our stunning Open Oval Blue Spinel from Tanzania! With its captivating hue and exquisite cut, this gem is the epitome of elegance. Perfect for adorning a ring, its beauty...
Category

2010s Tanzanian Loose Gemstones

Materials

Spinel

2.45 Carat Natural Loose African Tourmaline Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 2.45 Carats Dimension: 8 x 7 x 5.9 Mm Colour: Yellow Origin: Africa Certificate: On Demand Treatment: Non Tourmaline is a captivating gemstone known for i...
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gemstones

Materials

Tourmaline

GLA Certificate Tourmaline Afghanistan green-mint 8.45 ct Investment Gemstone
Located in Viena, Viena
Estimated value approx. 3500.- euros the most beautiful among the beautiful, a green tourmaline from Afghanistan with mint tone, always special due to the particularly high light re...
Category

2010s Modern Loose Gemstones

Materials

Tourmaline

GIA Certified 7.02 Carat Fancy Dark Brown-Yellow Natural Diamond
Located in Dubai, UAE
We are natural diamond production company located in Dubai. Weight: 7.02ct Shape: Cushion Color: Brown-Yellow Intensity: Fancy Clarity: I1 Polish: Excellent Symm: Good
Category

21st Century and Contemporary Emirian Modern Loose Gemstones

Materials

Diamond, Yellow Diamond, Brown Diamond

GIA Certified 3.01 Carat Y-Z (Yellow) Natural Diamond
Located in Dubai, UAE
We are natural diamond production company located in Dubai. Weight: 3.01ct Shape: Cushion Color: rare Y-Z (Yellow) Clarity: VVS2 Polish: Excellent Symm: Very Good Dimensions (mm): 8....
Category

21st Century and Contemporary Emirian Modern Loose Gemstones

Materials

Diamond, Yellow Diamond

Superb vintage hand carved “Peony Floral Spray” natural color Momo coral plaque
Located in New York, NY
A superb, vintage, hand carved “Peony Floral Spray” natural color Momo coral plaque. The one of a kind oval plaque is intricately carved and fantastically detailed and the color is e...
Category

20th Century Unknown Contemporary Loose Gemstones

Materials

Coral, Sterling Silver

4.25 Carats Fine Sea Blue Loose Aquamarine Stone Trilliant Cut Nigerian Gemstone
Located in Bangkok, TH
Weight 4.25 carats Dimensions 11.1x10.8x7.5 mm Treatment none Origin Nigeria Clarity SI Shape triangular Cut Trilliant The 4.25 carats Fine Sea Blue Aquamarine Stone boasts ...
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Aquamarine

Set of 2 Loose Tourmalines - Emerald Cut 1.57ctw Blue Green Matched Pair
Located in Greensboro, NC
Treatment: No Treatment Total Carats: 1.57ctw Cut: Emerald Color: Blue Green Origin: Nigeria Size: 6.2mm x 4.9mm Condition: New
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

NO RESERVE 1ct Oval NATURAL TEAL BLUE UNHEATED SAPPHIRE Gemstone
Located in Sheridan, WY
Step into a world of serene beauty with this 1.3-carat Oval Natural Teal Blue Sapphire Gemstone. Boasting an eye-clean clarity, this gemstone is a paragon of purity, with no visible ...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

NO RESERVE 1ct Round TEAL BLUE UNHEATED SAPPHIRE
Located in Sheridan, WY
Discover the timeless beauty of this 1-carat Round Teal Blue Natural Untreated Sapphire Gemstone. Its classic round cut radiates with a symphony of light, enhancing the stone’s deep ...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

5.10 Carat Natural Loose Apple Green Peridot Cushion Shape Gem For Earth Mine
Located in Peshawar, PK
Loose Peridot Weight: 5.10 Carats Dimension: 11.3 x 8.8 x 6.4 Mm Colour: Green Origin: Supat Valley, Pakistan Shape: Emerald Certificate: On Demand Treatment: Non Peridot, a vibran...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

Gorgeous 3.05 Carats Natural Loose Green Emerald Swat Pakistan Mine Ring Gem
Located in Peshawar, PK
Loose Emerald Weight: 3.05 Carats Dimensions: 10.5x6.2x5.9 Mm Origin: Swat Pakistan Shape: Emerald Color: Green Treatment: Non Certificate: On Demand The Swat Emerald...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Emerald

Rare Blue Natural Tourmaline Gemstone, 6.25 Ct Cushion Cut for Ring/Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline PIECE(S): 1 WEIGHT: 6.25 Carats SHAPE: Cushion Cut SIZE (MM): 10.20 x 9.50 x 8.53 COLOR: Vibrant Blue CLARITY: Moderately Included TREATMENT: None ORIGIN: A...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Loose 1.83ct Pear Cut GIA Cert Natural Diamond SI1/J i15047
Located in Toledo, OH
Sparkling loose diamond. SI1 clarity with J color. GIA number 6237154289. 10.7mm by 6.6mm by 4.2mm
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Fascinating Swiss Blue Topaz Stone 17.85 Carats Aaa Sparkling Topaz for Jewelry
Located in Bangkok, TH
Fascinating Swiss Blue Topaz Stone, available For Sale At Wholesale Price Natural High Quality 17.85 Carats Loupe Clean Clarity Heated Topaz From Madagascar...
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Topaz, Blue Topaz

1.5ct Pear Cut UNTREATED TEAL BLUE NATURAL SAPPHIRE Gemstone NO RESERVE
Located in Sheridan, WY
Indulge in the captivating allure of this exquisite 1.5-carat Pear Cut Untreated Teal Blue Natural Sapphire Gemstone. Meticulously crafted to showcase its unique teardrop shape, thi...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

5.45ct NON-OILED Emerald Cut Natural EMERALD Gemstone
Located in Sheridan, WY
Indulge in the luxurious allure of our exquisite 5.25ct Non-oiled Emerald Cut Emerald Gemstone. This premium quality gemstone boasts a vibrant green hue that captures the essence of ...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

Majestic 1.82ct Ideal Cut Pair of Diamonds - GIA Certified
Located in רמת גן, IL
Majestic 1.82ct Ideal Cut Pair of Diamonds - GIA Certified Introducing a stunning pair of emerald-cut diamonds, totaling 1.82-carat, perfect for creating exquisite jewelry pieces. C...
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Luminous 1.41ct Ideal Cut Pair of Diamonds - GIA Certified
Located in רמת גן, IL
Luminous 1.41ct Ideal Cut Pair of Diamonds - GIA Certified Experience elegance with this exquisite pair of pear-shaped diamonds, totaling 1.41-carat. These diamonds are nearly color...
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Loose Gemstones for Sale on 1stDibs

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.

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