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Heart Shaped Loose Tanzanite Set No Reviews 4.80 Carats '1.20 Carat Each'
Located in Bangkok, TH
Clarity 4.80 carats (1.20 carat each) loose tanzanite gemstone from Tanzania. Product Information
Category

21st Century and Contemporary Unknown Modern Loose Gemstones

Materials

Tanzanite

Loose Tanzanite Gemstone 3.3 ct
Located in Laguna Beach, CA
Loose 3.30-carat tanzanite gemstone. No grading lab certificate. The stone is a rectangle cushion
Category

21st Century and Contemporary Loose Gemstones

Materials

Tanzanite

3.12 Cts Natural Tanzanite SDLX Grade Cushion Shape Loose Tanzanite Stone
Located in New York, NY
of all the types of Natural Gemstones Tanzanite. and Morganite , Aquamarine, Blue Topaz, Opal Loose
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

5.33 Carat Natural Tanzanite Oval Faceted Cut AAA Color Loose Tanzanite Gemstone
Located in New York, NY
SKU - 50008 Stone : Natural Tanzanite Shape - Oval Grade - AAA Weight - 5.33 cts Length
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

3.84 Carat AAA Natural Tanzanite Oval Cut Shape Loose Tanzanite Gemstone Jewelry
Located in New York, NY
SKU - 50015 Stone : Natural Tanzanite Shape - Oval Clarity - Eye clean Grade - AAA Weight - 3.84
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

2.50 Carat Natural Loose Tanzanite Tear/Pear Shape Gemstone for Jewelry Making
Located in Peshawar, PK
Faceted Tanzanite Weight: 2.50 Carats Dimension: 12.9x6.8x4.7 Mm Origin: Tanzania Color: Purplish
Category

2010s Tanzanian Arts and Crafts Loose Gemstones

Materials

Tanzanite

111.55 Carat Tanzanite Loose Gemstone
Located in New York, NY
Introducing the breathtaking 111.55 carat loose Tanzanite, a rare and extraordinary gemstone of the
Category

2010s Tanzanian Loose Gemstones

Materials

Tanzanite

5 Carat Tanzanite 10mm Round Faceted Cut - Single Loose Stone
Located in Endwell, NY
This loose tanzanite measures 10mm in diameter by 7.20mm in depth with a round faceted cut, giving
Category

20th Century Loose Gemstones

Materials

Tanzanite

Exceptional Vivid Tanzanite Loose Stone 11.01 Carats GIA Certified
Located in Media, PA
GIA REPORT NUMBER: 6234199403 This exceptional loose tanzanite stone, weighing 11.01 carats, has
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

Exquisite Natural Blue Tanzanite Gemstone 2.80 Carats Fine Jewelry Faceted Stone
Located in Bangkok, TH
Quality 2.80 Carats Loupe Clean Clarity Loose Tanzanite Stone From Tanzania. Product Information
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Tanzanite

Tanzanite Gem 3.77 Carat Round Cut Loose Gemstone Tanzanite Jewelry
Located in New York, NY
SKU - 50013 Stone : Natural Tanzanite Shape - Round Clarity - Eye clean Grade - AAA Weight
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

12.7 Carat Natural Tanzanite Emerald Cut Loose Gemstone Tanzanite Jewelry
Located in New York, NY
SKU - 50002 Stone : Natural Tanzanite Shape - Emerald Cut Grade - AAA Clarity - Eye clean Weight
Category

21st Century and Contemporary Tanzanian Art Deco Loose Gemstones

Materials

Tanzanite

14.56 Carat Natural Tanzanite Emerald Cut Loose Gemstone Tanzanite Jewelry
Located in New York, NY
SKU - 50001 Stone : Natural Tanzanite Grade - AAA Shape - Emerald Cut Weight - 14.56 cts Length
Category

21st Century and Contemporary Tanzanian Art Deco Loose Gemstones

Materials

Tanzanite

9.91 Carat Tanzanite Emerald Cut, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
. Weighing an impressive 9.91 carats, this extraordinarily fine tanzanite is absolutely spectacular. This gem
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

7.20 Carat Oval Tanzanite, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
Top quality tanzanites like this 7.20 carat oval make it easy to see why this gorgeous gemstone is
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

1.50 Carat Oval Loose Unset Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 1.50 carat oval tanzanite has beautiful, medium violet-blue color and is such a pretty gem! It
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

SDLX Grade Natural Tanzanite 8x6m Cushion Shape Tanzanite Loose Gemstone Jewelry
Located in New York, NY
of all the types of Natural Gemstones Tanzanite. and Morganite , Aquamarine, Blue Topaz, Opal Loose
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

5.19 CTW IF AA Loose Trillion Tanzanite Stone
Located in Stuart, FL
5.19 CTW IF AA loose trillion tanzanite stone, measures 9.7 x 12.3 mm
Category

21st Century and Contemporary Loose Gemstones

Materials

Tanzanite

5.19 CTW IF AA Loose Trillion Tanzanite Stone
5.19 CTW IF AA Loose Trillion Tanzanite Stone
Free Shipping
W 0.39 in L 0.49 in
4.25 Carat Tanzanite Pear-Shaped - Single Loose Stone
Located in Endwell, NY
Select this gorgeous ocean tanzanite for your next addition for any gemstone collection or jewelry
Category

20th Century Loose Gemstones

Materials

Tanzanite

4.25 Carat Tanzanite Pear-Shaped - Single Loose Stone
4.25 Carat Tanzanite Pear-Shaped - Single Loose Stone
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W 0.38 in D 0.25 in L 0.5 in
Tanzanite Ring Gem 8.07 Carat Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Marvelous 8.07 carat Tanzanite cushion cut gem offered loose to a lady or gentleman. Dimensions
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Tanzanite

Tanzanite Ring Gem 8.07 Carat Cushion Loose Gemstone
Tanzanite Ring Gem 8.07 Carat Cushion Loose Gemstone
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W 0.47 in D 0.33 in L 0.47 in
Tanzanite Ring Stone 56 Carat Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Exceptional and coveted 56.77 carat Tanzanite square cushion loose gemstone, offered unmounted to a
Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Tanzanite

Tanzanite Ring Stone 56 Carat Cushion Loose Gemstone
Tanzanite Ring Stone 56 Carat Cushion Loose Gemstone
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W 0.9 in D 0.58 in L 0.9 in
5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
Have you been dreaming of a tanzanite? It may be time to treat yourself to this vivid pear shaped
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
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W 0.35 in D 0.26 in L 0.56 in
Tanzanite Ring Gem 5.46 Carat Trillion Loose Gemstone
Located in New York, NY
SKU - 50012 Stone : Natural Tanzanite Shape - Trillion Clarity - Eye clean Grade - AAA Weight
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

Tanzanite Ring Gem 5.46 Carat Trillion Loose Gemstone
Tanzanite Ring Gem 5.46 Carat Trillion Loose Gemstone
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H 0.26 in W 0.47 in L 0.47 in
Tanzanite Earrings Loose Gemstones 3.34 Carat Square Octagons
By Merkaba
Located in Beverly Hills, CA
Special 3.34 carat Tanzanite pair of square octagon loose gemstones, offered unmounted to a very
Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Tanzanite

1.32 Carat Pear-Shaped Loose Unset Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 1.32 carat pear-shaped tanzanite is a real beauty! It has classic bluish violet color and a
Category

21st Century and Contemporary Zambian Artisan Loose Gemstones

Materials

Tanzanite

Tanzanite Earrings Loose Gemstones 4.04 Carats Unmounted Cushion
By Tamir
Located in Beverly Hills, CA
Lively Tanzanite cushion pair totaling 4.04 carats, offered unmounted for a spectacular custom pair
Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Tanzanite

Fabulous Loose Sugarloaf Cabochon Tanzanite of 26.20 Ct
Located in Lucerne, CH
Beautiful large sugarloaf Tanzanite of 26.20 ct. Nice and rich purplish-blue colour evenly
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Tanzanite

3.66 Carat Tanzanite Gemstone, Oval Cut Loose Solitaire
Located in Greensboro, NC
Shape/Cut: Oval Color: Purple Treatment: Routinely Enhanced Dimensions (mm): 11.1 x 9.1 Weight: 3.66ct Please check out the enlarged pictures. Thank you for taking the time to...
Category

20th Century Unknown Loose Gemstones

Materials

Tanzanite

Tanzanite Earrings Gemstone Pair 6.70 Carats Oval Loose Gems
By Merkaba
Located in Beverly Hills, CA
"Loupe clean" purplish blue Tanzanite oval pair, weighing a total of 6.70 carats, offered loose for
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Tanzanite

Tanzanite Earrings Gemstone Pair 6.70 Carats Oval Loose Gems
Tanzanite Earrings Gemstone Pair 6.70 Carats Oval Loose Gems
Free Shipping
W 0.32 in D 0.24 in L 0.4 in
1.17 Carat Unset Loose Unmounted Cushion Shaped Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This petite tanzanite gemstone is both gorgeous and budget-friendly! With its characteristic
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

Natural Tanzanite DLX Color Cushion Shape Loose Gemstone Jewelry
Located in New York, NY
DLX Tanzanite is one of the rarest gemstones in the world. Get this beautiful gem to grace your
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

Tanzanite Necklace Ring Gem 8.78 Carat Shield Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Graceful 8.78 carat "loupe clean" Tanzanite Shield gem, offered loose to a sophisticated gemstone
Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Tanzanite

Tanzanite Necklace Ring Gem 8.78 Carat Shield Loose Gemstone
Tanzanite Necklace Ring Gem 8.78 Carat Shield Loose Gemstone
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W 0.57 in D 0.28 in L 0.77 in
3.66 Carat Unset Loose Pear Shaped Unmounted Tanzanite Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous 3.66 carat pear-shaped tanzanite has rich, deep color, which is seldom seen. It will
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Tanzanite

Tanzanite Earrings Gemstone Pair 3.90 Carats Oval Loose Gems
By Tamir
Located in Beverly Hills, CA
"Loupe clean" purplish blue Tanzanite oval pair, weighing a total of 3.90 carats, offered loose for
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Tanzanite

Tanzanite Earrings Gemstone Pair 3.90 Carats Oval Loose Gems
Tanzanite Earrings Gemstone Pair 3.90 Carats Oval Loose Gems
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W 0.29 in D 0.2 in L 0.33 in
4 Carat Tanzanite 9mm Round Faceted Cut - Single Loose Stone
Located in Endwell, NY
Add this stunning round faceted cut tanzanite to your gemstone and jewelry collection, or make it
Category

20th Century Loose Gemstones

Materials

Tanzanite

Gorgeous 1.50 Carat Oval Shape Natural Loose Blue Tanzanite Gemstone
Located in Peshawar, PK
Faceted Tanzanite Weight: 1.50 Carats Dimension: 7.2x5.3x4.4 Mm Shape: Oval Color: Blue Treatment
Category

2010s Tanzanian Arts and Crafts Loose Gemstones

Materials

Tanzanite

AAAA+ 11.10 Carat Natural Tanzanite Pear Shape Loose Gemstone Jewelry
Located in New York, NY
Stone Dimensions-----------------------------------❤️ * Gemstone :- Natural Tanzanite * Size
Category

21st Century and Contemporary Tanzanian Art Deco Loose Gemstones

Materials

Tanzanite

11.38 Carat, Natural Blue Tanzanite, Square Cushion, AAA Color, Loose Stone
Located in New York, NY
SKU - 50011 Stone : Natural Tanzanite Shape - Square Cushion Grade - AAA Weight - 11.38 Cts
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

3.77 Cts Natural Blue Tanzanite, Octagon Shape, Asher Cut, Loose Gemstone
Located in New York, NY
SKU - 50009 Stone : Natural Tanzanite Clarity - Eye clean Shape - Asher Cut Grade - AAA Weight
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

Emerald Cut Natural Blue Tanzanite AAA Grade 12.63 Carat Loose Gemstone Jewelry
Located in New York, NY
SKU -50010 Stone : Natural Tanzanite Clarity - Eye clean Shape - Emerald cut Grade - AAA Weight
Category

21st Century and Contemporary Loose Gemstones

Materials

Tanzanite

9.81 Carat Natural Tanzanite Oval Cut AAA Excellent Quality Loose Gemstone
Located in New York, NY
SKU - 50006 Stone - Natural Tanzanite Shape - Oval Grade - AAA Weight - 9.81 cts Length
Category

21st Century and Contemporary Tanzanian Art Deco Loose Gemstones

Materials

Tanzanite

AAA Natural Tanzanite Cushion Shape 1.52 Cts Faceted Cut 8x6mm Loose Gemstone
Located in New York, NY
of all the types of Natural Gemstones Tanzanite. and Morganite , Aquamarine, Blue Topaz, Opal Loose
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

4.63 Cts Natural Tanzanite Trillion Cut Eye Clean Clarity AAA Loose Gemstone
Located in New York, NY
SKU - 50014 Stone : Natural Tanzanite Shape - Trillion Clarity - Eye clean Grade - AAA Weight
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

9.77 Ct Natural Tanzanite, Emerald Cut, AAA Color Top Quality, Loose Gemstone
Located in New York, NY
SKU - 50007 Stone - Natural Tanzanite Shape - Emerald Cut Grade - AAA Weight - 9.77 Cts Length
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Emerald, Tanzanite

3.53ct Cushion Tanzanite
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.53 cts Measurements
Category

2010s Tanzanian Loose Gemstones

Materials

Tanzanite

3.53ct Cushion Tanzanite
3.53ct Cushion Tanzanite
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W 0.46 in D 0.18 in L 0.32 in
3.30ct Oval Tanzanite
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.3 cts Measurements: 12.20x8x4.60
Category

2010s Tanzanian Loose Gemstones

Materials

Tanzanite

3.30ct Oval Tanzanite
3.30ct Oval Tanzanite
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W 0.49 in D 0.19 in L 0.32 in
10.17ct GIA Certified Tanzanite
Located in Bloomington, MN
Dive into the allure of a pristine 10.17ct Tanzanite, backed by a GIA Report. This freshly sourced
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

10.17ct GIA Certified Tanzanite
10.17ct GIA Certified Tanzanite
Free Shipping
W 0.53 in D 0.35 in L 0.58 in
8.86 GAL Certified Oval Tanzanite
Located in Bethesda, MD
• Gemstone: Tanzanite • Weight: 8.86 Carats • Shape: Oval • Dimensions: 14.40 x 10.99 x 7.56mm
Category

2010s Loose Gemstones

Materials

Tanzanite

Purplish Blue Tanzanite Heart Shaped 1.30 Cts Tanzanite Gemstone from Tanzania
Located in Bangkok, TH
Purplish Blue Tanzanite Heart Shaped of 1.30 Carat from Tanzania has a wonderful cut in a heart
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Tanzanite

Certified Vivid Blue Tanzanite - 6.30ct
Located in Antwerpen, BE
color is out-of-gamut for most computer monitors. Tanzanite's are doubly refractive and a slight
Category

2010s Tanzanian Modern Loose Gemstones

Materials

Tanzanite

Certified Vivid Blue Tanzanite - 6.30ct
Certified Vivid Blue Tanzanite - 6.30ct
Free Shipping
W 0.51 in D 0.28 in L 0.4 in
8.15 Carat Cushion Cut Tanzanite
Located in London, GB
This Spectacular Cushion cut tanzanite is a gorgeous striking blue with the slightest hints of
Category

21st Century and Contemporary Loose Gemstones

Materials

Tanzanite

8.15 Carat Cushion Cut Tanzanite
8.15 Carat Cushion Cut Tanzanite
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W 0.45 in D 0.29 in L 0.47 in
Carved Eye Tanzanite Cts 79.71
Located in Hong Kong, HK
-carat carved eye tanzanite is a captivating work of art that begs to be explored. Tanzanite itself has
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

Carved Flower Tanzanite Cts 128.94
Located in Hong Kong, HK
An alluring tanzanite carved flower with delicate petals and an elaborate floral arrangement
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

Carved Lady Tanzanite Cts 49.76
Located in Hong Kong, HK
This breathtaking Carved Lady Tanzanite, a stunning gemstone weighing 49.76 cts, is adorned with
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

1.94ct tanzanite Precision master cut clean
Located in bangkok, TH
Rare Precision cutting Natural tanzanite Color: brilliant Size :8.3*6.2mm Clarity :100% clean
Category

2010s Loose Gemstones

Materials

Tanzanite

1.94ct tanzanite Precision master cut clean
1.94ct tanzanite Precision master cut clean
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W 0.33 in D 0.2 in L 0.25 in
Carved Flower Tanzanite Cts 126.36
Located in Hong Kong, HK
, this gorgeous carved flower tanzanite will elevate any jewelry collection. Crafted with precision and
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

Carved Flower Tanzanite Cts 229.17
Located in Hong Kong, HK
, this tanzanite masterpiece has a remarkable weight of 229.17 carats. The flower pattern captures the
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

Carved Leaf Tanzanite Cts 164.44
Located in Hong Kong, HK
This exquisite duo of Tanzanite gemstones weighs a stunning 164.44 cts. They are carved to
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tanzanite

3.03 Carat GAL Certified Round Tanzanite
Located in Bethesda, MD
• Gemstone: Tanzanite • Weight: 3.03 Carats • Shape: Round • Dimensions: 8.55 x 8.65 x 6.40mm
Category

2010s Loose Gemstones

Materials

Tanzanite

3.24 Carat GAL Certified Oval Tanzanite
Located in Bethesda, MD
• Gemstone: Tanzanite • Weight: 3.24 Carats • Shape: Oval • Dimensions: 10.02 x 7.93 x 5.83mm
Category

2010s Loose Gemstones

Materials

Tanzanite

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Loose Tanzanite For Sale on 1stDibs

You are likely to find exactly the loose tanzanite you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from 18k Gold, Gold and Platinum — can elevate any look. For this particular accessory, there are many different carat weights to choose from, but 2.5 Carat and 3 Carat versions are of considerable interest. Creating a loose tanzanite has been a part of the legacy of many jewelers, but those produced by Merkaba, Sarosi By Timeless Gems and Tamir are consistently popular. A cushion cut version of this piece has appeal, but there are also emerald cut and oval cut versions for sale. There aren’t many items for men if you’re seeking a loose tanzanite, as most of the options available are for women and unisex.

How Much is a Loose Tanzanite?

Prices for a loose tanzanite can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $2,175 and can go as high as $48,500, while this accessory, on average, fetches $7,200.

Finding the Right Loose Gemstones for You

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.