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Loose Gemstones at Auction

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Ways To Shop: Auction
NO RESERVE 2.70ct NON-OILED NATURAL BLUE GREEN EMERALD Gemstone
By Hannaboya
Located in Sheridan, WY
Introducing our exquisite 2.70ct Non-Oil Natural Blue Green Emerald Loose Gemstone, a treasure for both jewelry designers and gemstone collectors. This captivating gem, measuring 9...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

2.6ct Oval Pinkish Red Rubellite Tourmaline Gemstone
By Hannaboya
Located in Sheridan, WY
Unveil the captivating charm of our 2.6-carat Oval Pinkish Red Rubellite Tourmaline Loose Gemstone. Gemstone Details: Carat Weight: 2.6 ca...
Category

2010s African Modern Loose Gemstones

Materials

Tourmaline, Rubelite

GLC Certified 3.74ct Berry Pinkish- Purple Spinel
Located in เกาะสมุย, TH
Eye clean. This particular gem measures approximately 8.01x9.75x5.29mm, providing ample space for intricate and creative jewelry designs. Pinkish-purple color emerald cut Burma sp...
Category

21st Century and Contemporary Asian Loose Gemstones

Materials

Spinel

4.03ct CUSHION Cut RED RUBELLITE TOURMALINE Gemstone
By Hannaboya
Located in Sheridan, WY
Unleash your creativity with the enchanting beauty of our 4.03-carat Cushion Cut Pinkish Red Rubellite Tourmaline Loose Gemstone. Gemstone...
Category

2010s African Modern Loose Gemstones

Materials

Tourmaline, Rubelite

2.39Ct Natural Untreated Ruby Oval Loose Gemstone
By Hannaboya
Located in Sheridan, WY
Elevate your jewelry creations with the enchanting beauty of our 2.39Ct 100% Natural Ruby Oval Loose Gemstone. This exquisite gem, with its captivating pink hue and elegant oval cut,...
Category

2010s African Artisan Loose Gemstones

Materials

Ruby

4.55ct Octagonal Cut No-Oil Untreated Emerald Gemstone
By Hannaboya
Located in Sheridan, WY
Experience the allure of nature at its finest with this 4.55ct Octagonal Cut No-Oil 100% Natural Untreated Emerald Gemstone. This extraordin...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

GIT Certified 4.29ct Cat's Eye Sillimanite, No treatment, 10.99x7.80x5.52 mm
Located in เกาะสมุย, TH
Cats eye fans please do not miss: Sillimanite cat's eye is a legitimate beautiful gemstone with distinct appearances and allure of its own. The cat's eye on this gemstone very strong...
Category

20th Century Thai Loose Gemstones

Materials

Cat’s Eye

5.2ct Pink Asscher Rubellite Gemstone
By Hannaboya
Located in Sheridan, WY
Our 5.2ct Pink Asscher Rubellite is a treasure of unparalleled beauty. Expertly cut in the prestigious Asscher style, this gemstone boasts step-cut facets that draw the eye inward, e...
Category

2010s African Artisan Loose Gemstones

Materials

Rubelite

Natural Purple Amethyst Gemstone, 22.05 Ct Emerald Cut-Necklace Pendant-Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Amethyst PIECE(S): 1 WEIGHT: 22.05 Carats SHAPE: Step Emerald Cut SIZE (MM): 19.60 x 13.57 x 11.62 COLOR: Light Purple CLARITY: Eye Clean TREATMENT: None ORIGIN: Afri...
Category

21st Century and Contemporary Congolese Contemporary Loose Gemstones

Materials

Amethyst

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

1ct Round Teal Blue Natural Untreated Sapphire Gemstone
By Hannaboya
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

NO RESERVE 1ct Oval NATURAL TEAL BLUE UNHEATED SAPPHIRE Gemstone
By Hannaboya
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 1.3ct Oval NATURAL Teal BLUE SAPPHIRE Gemstone
By Hannaboya
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

Blue Sapphire, Sapphire

NO RESERVE 1ct Round TEAL BLUE UNHEATED SAPPHIRE
By Hannaboya
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

1.5ct Pear Cut UNTREATED TEAL BLUE NATURAL SAPPHIRE Gemstone NO RESERVE
By Hannaboya
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

2.0ct Round Teal NATURAL Unheated SAPPHIRE Gemstone
By Hannaboya
Located in Sheridan, WY
Embrace the allure of the ocean with our 2.0ct Round Teal Natural Unheated Sapphire Gemstone. This stunning gemstone boasts a unique teal hue that evokes the mystery and charm of the...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire, Green Sapphire

5.45ct NON-OILED Emerald Cut Natural EMERALD Gemstone
By Hannaboya
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

3.65ct NON-OILED Rectangular Natural EMERALD Gemstone
By Hannaboya
Located in Sheridan, WY
Discover the pure elegance of our 3.65ct Non-oiled Rectangle Cut Natural Emerald Gemstone. This exceptional gemstone radiates a deep, lush green, reminiscent of the richest foliage. ...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

2.35ct NON-OILED Rectangular cut NATURAL EMERALD Gemstone NO RESERVE
By Hannaboya
Located in Sheridan, WY
Introducing our exquisite 2.35-carat Rectangular Emerald Gemstone, a natural treasure that exudes elegance and sophistication. This non-oiled, genuine emerald boasts a classic rectan...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

NO RESERVE 2.0ct Oval Teal Blue NATURAL SAPPHIRE Gemstone
By Hannaboya
Located in Sheridan, WY
Step into a world of serene elegance with our 2.0ct Oval Teal Blue Natural Sapphire Gemstone. This enchanting gemstone features a captivating teal blue hue that mirrors the tranquil...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

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

76.81 Carat Purple Amethyst Collectors' Stone
Located in Hua Hin, TH
A collector's 76.81 carat, Radiant-Cut Amethyst Gem. Shape: Oval Crown: Spiral Pavilion: Spiral Dimensions: 30.48 x. 25.62 x 17.00 mm Color: Purple Weight: 76.81 Carats No Heat/Tre...
Category

2010s Unknown Loose Gemstones

Materials

Amethyst

52.78 Carat Purple Amethyst Collectors' Stone
Located in Hua Hin, TH
A collector's 52.78 carat, Radiant-Cut Amethyst Gem. Shape: Octagon Crown: Step Pavilion: Step Dimensions: 21.76 x. 21.61 x 15.20 mm Color: Purple Weight: 52.78 Carats No Heat/Trea...
Category

2010s Unknown Loose Gemstones

Materials

Amethyst

7.58 Carat Radiant Cut Intense Blue Natural Sapphire Loose Gemstone
Located in Great Neck, NY
7.58 cts Radiant cut natural loose sapphire intense blue color measures 10.2mm x 11.0mm *Free shipping within the US*
Category

2010s American Loose Gemstones

Materials

Sapphire

GIA Certified 67.75 Carat Natural Quartz Citrine Oval Loose Gemstone
Located in Trumbull, CT
This GIA certified 67.75 Carat Natural Quartz Citrine Oval loose gemstone has modified brilliant cut. It has yellow-orange color and is transparent. Carefully hand cut and hand polis...
Category

21st Century and Contemporary South American Artisan Loose Gemstones

Materials

Citrine, Quartz

No Reserve Natural Violet Purple Spinel Burma Step Cushion
Located in Bangkok, TH
🌟 Introducing our stunning Violet Purple Spinel! 🌟 Elevate your jewelry collection with this mesmerizing 2.25 carat Step Cushion cut Spinel. Radiating elegance and allure, its vibr...
Category

2010s Burmese Loose Gemstones

Materials

Spinel

GIA 10.07 Carat Natural Yellow Cushion Shape Diamond
Located in Great Neck, NY
GIA fancy yellow cushion shape diamond weighing 10.07 carats. Treated Clarity
Category

2010s American Loose Gemstones

Materials

Diamond, Yellow Diamond, 14k Gold, White Gold

15.55 Carat Green Quartz Stone
Located in Bangkok, TH
A gorgeous 15.55 Carat Quartz gemstone. It is completely natural and it is a clean stone. The quartz has a unique and breath-taking green color that is sure to allure you at first sight! It is cut to perfection in a distinct and fancy oval shape. Quartz is an energizing crystal, that is believed to uplift the spirit and offer one with creativity and joy. They are often associated with stability and confidence, assuring success, calming nerves, and spurring mental inspiration. According to Vedic...
Category

21st Century and Contemporary Loose Gemstones

Materials

Quartz

17.01 Carat Green Quartz Stone
Located in Bangkok, TH
A gorgeous 17.01 Carat Quartz gemstone. It is completely natural and it is a clean stone. The quartz has a unique and breath-taking green color that is sure to allure you at first sight! It is cut to perfection in a distinct and fancy oval shape. Quartz is an energizing crystal, that is believed to uplift the spirit and offer one with creativity and joy. They are often associated with stability and confidence, assuring success, calming nerves, and spurring mental inspiration. According to Vedic...
Category

21st Century and Contemporary Loose Gemstones

Materials

Quartz

21.60 Carat Pear Shape Citrine Gemstone
Located in Bangkok, TH
A 21.60 Carat Citrine gemstone, resplendent in hues of vivid yellowish-orange. The Citrine is cut to perfection in a pear shape. Citrine has been cherished since the ancient times. ...
Category

21st Century and Contemporary Loose Gemstones

Materials

Citrine

26.38 Carat Fancy Pastel Purple Amethyst Stone
Located in Bangkok, TH
A mesmerising 26.38 Carat Amethyst gemstone. It is completely natural and it is a clean stone. The amethyst has a unique and breath-taking pastel purple color that is sure to allure...
Category

21st Century and Contemporary Loose Gemstones

Materials

Amethyst

Meghna Jewels .40 Carat Very Light Pink Diamond Fancy Pear Shape VVS1 GIA
By Meghna Jewels
Located in Hoffman Estate, IL
An exceptional .40 carat VVS1 Clarity fancy pear cut very light pink diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. Shape PEAR Carat .40 Color FANCY VERY LIGHT PINK...
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Pink Diamond

MEGHNA JEWELS 1.01 Carat Fancy Intense Orangy Yellow Diamond Oval Shape VS1 GIA
By Meghna Jewels
Located in Hoffman Estate, IL
An 1.01 carat VS1 Clarity fancy oval cut intense orangy yellow diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. Sha...
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Yellow Diamond

7.5ct Deep Pink Cushion Rubellite Gemstone
By Hannaboya
Located in Sheridan, WY
Immerse yourself in the allure of our 7.5ct Deep Pink Cushion Rubellite Gemstone, a jewel that exudes sophistication and warmth. The cushion cut, known for its rounded corners and la...
Category

2010s African Artisan Loose Gemstones

Materials

Rubelite, Tourmaline

12.5ct Octagonal Rubellite Tourmaline Gemstone
By Hannaboya
Located in Sheridan, WY
Discover the splendor of this 12.5ct Octagonal Rubellite Tourmaline Gemstone, a testament to nature at its best. With its unique octagonal cut, this gemstone captures the light and s...
Category

2010s African Artisan Loose Gemstones

Materials

Rubelite, Tourmaline

NO RESERVE 2.83ct Emerald Cut NATURAL Greenish BLUE AQUAMARINE Gemstone
By Hannaboya
Located in Sheridan, WY
Introducing our exquisite 2.83-carat Emerald Cut Natural Greenish Blue Aquamarine Gemstone, a mesmerizing piece that exudes elegance and sophistication. This stunning gemstone featur...
Category

2010s African Artisan Loose Gemstones

Materials

Aquamarine

Rare Pastel Green Natural Tourmaline Gemstone, 5.05 Ct Emerald Cut-Ring/Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline PIECE(S): 1 WEIGHT: 5.05 Carats SHAPE: Emerald SIZE (MM): 12.33 x 8.31 x 5.68 COLOR: Pastel Green CLARITY: Slightly Included TREATMENT: None ORIGIN: Afghan...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Diamond raw Strand total 55 carat natural colors 5-6 mm Seize like small comets
Located in Viena, Viena
...either two bracelets or a necklace...., a natural gray diamond strand in the form of rough diamond uncut nuggets, approx. 5-6 mm in the natural...
Category

2010s Unknown Modern Loose Gemstones

Materials

Diamond

Rare Mint Green Natural Tourmaline Gemstone, 3.85 Ct Cushion Cut-Ring/Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline PIECE(S): 1 WEIGHT: 3.85 Carats SHAPE: Cushion Cut SIZE (MM): 9.63 x 7.24 x 6.30 COLOR: Mint Green CLARITY: Slightly Included TREATMENT: None ORIGIN: Afgha...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

1.35 Carats Natural Loose Burmese Red Spinel Ring Gemstone Cushion Shape
Located in Peshawar, PK
Loose Spinel Weight: 1.35 Carats Dimension: 6.4x5.3x4.4 Mm Origin: Myanmar Color: z Red Shape: Cushion Treatment: Non / Natural Certificate: On Customer Demand Spinel, an exquis...
Category

21st Century and Contemporary Burmese Artist Loose Gemstones

Materials

Spinel

Meghna 1.01 Carat Fancy Light Pink Diamond Cushion Shape GIA Certified VVS2
By Meghna Jewels
Located in Hoffman Estate, IL
An exceptional 3.51 carat VVS1 Clarity fancy pear cut light yellow diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. ...
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Pink Diamond

2.18ct Pear Greenish- Yellow Sapphire, No Heat
Located in เกาะสมุย, TH
This particular gem measures approximately 11mm in height, 6mm in width, and 3.5mm in depth, providing ample space for intricate and creative jewelry designs. Bi-color pear cut gre...
Category

21st Century and Contemporary Asian Loose Gemstones

Materials

Yellow Sapphire

1.8ct Emerald Cut LOUPE CLEAN Natural TEAL BLUE SAPPHIRE Gemstone NO RESERVE
By Hannaboya
Located in Sheridan, WY
Discover our Loupe Clean 1.8ct Natural Teal Blue Sapphire—an embodiment of sophistication and timeless beauty. This emerald-cut gemstone captivates with its mesmerizing teal and blue...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Green Sapphire, Blue Sapphire

2.5ct Radiant Cut LOUPE CLEAN Natural UNHEATED TEAL BLUE SAPPHIRE Gemstone
By Hannaboya
Located in Sheridan, WY
Embark on a journey into the extraordinary with our 2.5ct Radiant Cut Teal Blue Sapphire—a gemstone that embodies the perfect blend of elegance, vibrancy, and timeless allure. Dime...
Category

2010s African Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

1.8ct Princess Cut NATURAL BICOLOR YELLOW BLUE PARTI SAPPHIRE LOUPE-CLEAN
By Hannaboya
Located in Sheridan, WY
Elevate your jewelry collection with our stunning 8.9mmx 5.5mm 1.80ct Princess Cut Natural Unheated Parti Sapphire, a mesmerizing gem that effortlessly blends hues of yellow, blue, and green in a captivating dance of colors. This Loupe Clean gemstone invites you into a world of flawless clarity, allowing you to explore its depths without any visible imperfections. Parti sapphire, also known as bicolor or tricolor sapphire...
Category

2010s African Artisan Loose Gemstones

Materials

Blue Sapphire, Sapphire, Yellow Sapphire, Green Sapphire

72.30 Carat Oval Shape Natural Opal Loose Gemstone
Located in Trumbull, CT
This 72.30 carat oval shape natural opal loose gemstone has phenomenal display of fire. This huge gemstone can be made into a stunning piece of jewelry according to your choice. Size...
Category

21st Century and Contemporary Loose Gemstones

Materials

Opal

Meghna 2.02 Carat Fancy Light Yellow Diamond Pear Shape GIA Certified VVS1
By Meghna Jewels
Located in Hoffman Estate, IL
An exceptional 3.51 carat VVS1 Clarity fancy pear cut light yellow diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. ...
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Yellow Diamond

Rare Watermelon Bicolor Tourmaline Gemstone11.90Ct Emerald Cut for Ring/Pendant
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline PIECE(S): 1 WEIGHT: 11.90 Carat SHAPE: Emerald SIZE (MM): 14.08 x 12.05 x 8.10 COLOR: Watermelon Bicolor Bluish Green & Pink CLARITY: Slightly Included-II T...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Rare Peachy Pink Natural Tourmaline Gemstone, 5.70 Ct Cushion Cut-Ring/Pendant
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline PIECE(S): 1 WEIGHT: 5.70 Carat SHAPE: Cushion SIZE (MM): 12.18 x 10.00 x 6.75 COLOR: Pink CLARITY: Eye Clean TREATMENT: None ORIGIN: Afghanistan CERTIFICAT...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

4.39ct Rectangular Cut Natural Dark Blue Sapphire Gemstone
By Hannaboya
Located in Sheridan, WY
4.39ct Rectangular Cut Natural Dark Blue Sapphire with distinctive qualities make it an ideal choice for your next jewelry project: The rectangular cut is a classic and versatile cho...
Category

2010s African Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

NO RESERVE 3.10ct Round NATURAL Navy BLUE SAPPHIRE Gemstone
By Hannaboya
Located in Sheridan, WY
Experience the epitome of authentic beauty and luxury with 3.10ct Round Brilliant Cut Natural Dark Blue Sapphire Loose Gemstone. This exquisite gem exudes a deep and alluring blue hu...
Category

2010s African Artisan Loose Gemstones

Materials

Blue Sapphire

Rare Greenish Yellow Natural Heliodor (Beryl) Gemstone, 0.95 Ct Oval Cushion Cut
Located in Peshawar, PK
GEMSTONE TYPE: Heliodor (Beryl) PIECE(S): 1 WEIGHT: 0.95 Carat SHAPE: Cushion SIZE (MM): 8.01 x 6.02 x 3.60 COLOR: Greenish Yellow CLARITY: Eye Clean TREATMENT: None ORIGIN: Afghani...
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Beryl

NO RESERVE 3.80ct PINK Oval Rubellite Gemstone
By Hannaboya
Located in Sheridan, WY
Introducing our exquisite 3.80ct Pink Oval Rubellite Gemstone—a radiant masterpiece that embodies elegance and sophistication. This stunning gemstone features a captivating oval cut,...
Category

2010s African Artisan Loose Gemstones

Materials

Rubelite

NO RESERVE 1.45ct Emerald Cut NON-OILED EMERALD Gemstone
By Hannaboya
Located in Sheridan, WY
Discover the unparalleled allure of our 1.45ct Natural Emerald Cut Non-Oiled Emerald Gemstone from Nigeria—a timeless masterpiece crafted by nature's finest hand. Meticulously cut in...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

3.10ct Rectangular Cut NON-OILED EMERALD Gemstone NO RESERVE
By Hannaboya
Located in Sheridan, WY
Introducing our exquisite 3.10ct Rectangular Cut Non-Oil Emerald Gemstone a radiant embodiment of nature's finest beauty and elegance. This stunning gemstone features a classic recta...
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

GIA Certified 21.85 Carat Natural Color Change Alexandrite
Located in New York, NY
This stunning oval over 21 carat genuine alexandrite – a rare color-change variety of chrysoberyl – is a vibrant yellow-green in natural lighting and shifts in a very strong color ch...
Category

2010s Malagasy Loose Gemstones

Materials

Alexandrite

Open Grey Natural Spinel 3.53 ct
Located in Bangkok, TH
Introducing our exquisite 3.5 carat grey spinel – a captivating gem of timeless allure. Its elegant shades and precise cut make it a statement piece for any occasion. Elevate your st...
Category

2010s Burmese Loose Gemstones

Materials

Spinel

Peach Pink Tourmaline Precision Cut 3.45 ct
Located in Bangkok, TH
A beautiful peach pink tourmaline. It has a beautiful twin shaded color. The tourmaline is has very minute inclusion. So it’s going to be graded as loupe clean —————————————————————...
Category

2010s African Loose Gemstones

Materials

Tourmaline

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