Gia Certified Tourmaline
2010s Loose Gemstones
Tourmaline
2010s Loose Gemstones
Tourmaline, Indicolite
2010s Brazilian Loose Gemstones
Tourmaline
2010s Mozambican Loose Gemstones
Tourmaline, Paraiba
2010s Mozambican Loose Gemstones
Tourmaline, Paraiba
Vintage 1940s Art Deco Cocktail Rings
Tourmaline, 14k Gold, Yellow Gold
Vintage 1960s Retro Cocktail Rings
Tiger's Eye, Tourmaline, 14k Gold, Yellow Gold
21st Century and Contemporary Contemporary Pendant Necklaces
Tourmaline, 14k Gold
2010s Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Bulgarian Modern Loose Gemstones
Tourmaline
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary American Cocktail Rings
Tourmaline, 18k Gold
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Cocktail Rings
Diamond, Tourmaline, 18k Gold
21st Century and Contemporary Cocktail Rings
Diamond, Tourmaline, 18k Gold
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Mozambican Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Art Deco Engagement Rings
Tourmaline, Paraiba, Platinum
20th Century Pendant Necklaces
Tourmaline, Paraiba
21st Century and Contemporary Cocktail Rings
Diamond, Tourmaline, 18k Gold
2010s Unknown Contemporary Cocktail Rings
Tourmaline, Rubelite, White Diamond, Diamond, Yellow Gold, White Gold, 1...
21st Century and Contemporary Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Unknown Artisan Loose Gemstones
Tourmaline
2010s American Dangle Earrings
Diamond, Tourmaline, White Gold
2010s American Chain Necklaces
Diamond, Garnet, Tourmaline, 14k Gold
21st Century and Contemporary Cocktail Rings
Diamond, Tourmaline, 18k Gold, White Gold, Yellow Gold
21st Century and Contemporary Mozambican Artisan Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Brazilian Artisan Loose Gemstones
Tourmaline, Paraiba
21st Century and Contemporary Contemporary Solitaire Rings
Tourmaline, Paraiba, Gold, 14k Gold, White Gold
- 1
- ...
Gia Certified Tourmaline For Sale on 1stDibs
How Much is a Gia Certified Tourmaline?
- 1stDibs ExpertApril 5, 2022Yes, Cartier diamonds are indeed GIA certified. The Gemological Institute of America (GIA) works closely with Cartier and certifies everything from the cut and clarity to the color of the gem. Shop a collection of expertly vetted Cartier jewelry from some of the world’s top sellers on 1stDibs.
- 1stDibs ExpertAugust 17, 2021In the United States, diamond rings are certified by an official gemological laboratory known as the Gemological Institute of America. A certified diamond ring means that the diamond has undergone a quality analysis by experts at an institution such as the GIA and these experts have issued a lab report that is indicative of the grading process.
- 1stDibs ExpertFebruary 22, 2021When a diamond is GIA certified, it means that the stone has undergone the meticulous set of grading procedures that have been established by the Gemological Institute of America. The GIA is not a jeweler — it is an independent, nonprofit group that sets the standards for determining the quality of a diamond.
- 1stDibs ExpertFebruary 13, 2023While diamond studs don't need to be GIA-certified to be sold, experts typically recommend that you only purchase diamonds that carry certification from the Gemological Institute of America (GIA) or Authentic Gem Security Lab (AGSL). Certifications bring transparency to the buying process, allowing you to know the level of quality of a diamond before you purchase it. Shop a collection of vintage and modern diamond gemstone earrings from some of the world’s top jewelers on 1stDibs.
- 1stDibs ExpertMarch 22, 2022Whether Neil Lane diamonds are GIA-certified or not depends on the piece. All of the diamonds featured in rings and other jewelry designs from the Neil Lane Couture collection do carry GIA certification. Pieces made for third-party retailers may not. On 1stDibs, find a collection of Neil Lane jewelry.
Read More
Our Guide to Engagement Ring Settings – And How to Choose One
There are many ways to showcase a diamond, from traditional prongs to a smooth, streamlined bezel. Here’s everything you need to consider.
Nothing Says Summer Heat Like This Ruby-Red Cartier Stunner
The vintage bombé ring is bursting with color and timeless style.
Zircon Rings: Our Guide to a Uniquely Colorful Natural Gemstone
Zircon is a magnificent and underrated natural gemstone that has been worn and adored for centuries.
[Survey] Two-Thirds of Jewelry Gift Recipients Don’t Want to Be Surprised
Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.
Colorful Gemstones Are a Brilliant Choice for Engagement Rings
If diamonds don’t seem right, what about a magnificent sapphire, ruby or emerald?
Our Guide to Fancy-Colored Diamond Engagement Rings
Accounting for just 1 percent of all diamonds, these marvels of nature are exceedingly rare and gorgeously complex.
Our Guide to Victorian, Edwardian and Art Deco Engagement Rings
Learn about these antique jewelry styles, then choose a design that speaks to you.
Talking Diamonds with the Jeweler Behind J. Lo’s Engagement Ring
Alon Ruschin, of Vivid Diamonds & Jewelry, channels his passion for gems into helping clients find just the right ring.