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Loose Green Tourmaline Gems

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2.02ct Vivid Olive Green Tourmaline Fancy Octagon Emerald Loose Cut Gem
By Gems and Jewels UK
Located in Birmingham, GB
2.02ct Vivid Olive Green Tourmaline Fancy Octagon Emerald Loose Cut Gem 8.2x6mm Natural Olive
Category

20th Century Loose Gemstones

Materials

Emerald, Tourmaline

Natural Light Green Loose Tourmaline Gem 3.0 Carats Faceted Tourmaline Ring
Located in Bangkok, TH
Natural Light Green Loose Tourmaline Gem, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Green Tourmaline Ring Gem 5.49 Carat Oval Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Intense 5.49 carat Green Tourmaline oval gem, offered loose to a gemstone lover. Returns are
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Tourmaline

Deep Green Tourmaline 2.12ct Octagon Emerald Cut Loose Gem
Located in Birmingham, GB
Deep Green Tourmaline 2.12ct Octagon Emerald Cut Loose Gem 7.6 x 7mm Natural Deep Green Tourmaline
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

Green Tourmaline Ring Gem 11.23 Carat Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Remarkable 11.23 carat Mint Green Tourmaline cushion gem offered loose to a very precious lady or
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline, Other

Green Tourmaline Ring Gem 11.23 Carat Cushion Loose Gemstone
Green Tourmaline Ring Gem 11.23 Carat Cushion Loose Gemstone
Free Shipping
W 0.44 in D 0.38 in L 0.54 in
Natural Bluish Green Loose Tourmaline Gem 1.85 Ct Afghan Tourmaline for Jewelry
Located in Bangkok, TH
Natural Bluish Green Loose Tourmaline Gem, Tourmaline For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 5.46 Carat Oval Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Pastel Mint Green Tourmaline oval gem, weighing a total of 5.46 carats, offered loose to a world
Category

21st Century and Contemporary Unknown Modern Loose Gemstones

Materials

Tourmaline

7.47 Carat Light Mint Green Loose Gem Cushion Cut Tourmaline
Located in Stamford, CT
Unique Custom cut, 7.47carat mint green Tourmaline. Excellent brilliance and lots of reflection
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

Green Tourmaline Earring Gems 6.44 Carat Unmounted Cushion Loose Gemstones
By Merkaba
Located in Beverly Hills, CA
Captivating 6.44 carat Mint Green Tourmaline cushion pair, offered loose and unmounted to a top
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 6.48 Carat Trillion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Bright 6.48 carat Mint Green Tourmaline trillion shaped gem, offered loose to a very unique lady or
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Other

Mint Green Tourmaline Earring Gems 5.56 Carats Cushion Loose Gemstones
By Merkaba
Located in Beverly Hills, CA
5.56 Carat Mint Green Tourmaline cushion loose gemstone pair, offered unmounted to an exclusive
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline

Green Tourmaline Ring Gem 10.64 Carat Rectangular Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Glamorous 10.64 carat Green Tourmaline rectangular cushion gem, offered loose to a world-class
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Other

Pink Green Tourmaline Earring Gems 1.96 Carat Round Loose Gemstones
By Merkaba
Located in Beverly Hills, CA
Perfectly mismatched pair of Pink and Green Tourmaline unmounted round gemstones, weighing a total
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline

Pink Green Tourmaline Earring Gems 1.44 Carat Round Loose Gemstones
By Merkaba
Located in Beverly Hills, CA
Perfectly mismatched pair of Pink and Green Tourmaline unmounted round gemstones, weighing a total
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline

6.25 Carat Natural Loose Blueish Green Tourmaline Asscher Cut Gem
Located in Peshawar, PK
Loose Bright Green Tourmaline Weight: 6.25 Carats Dimension: 10.1 x 10 x 8.5 Mm Colour: Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.35 Carats Stunning Natural Loose Mint Green Tourmaline Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 3.35 Carats Dimension: 8.8x8.3x5.8 Mm Origin; Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 6.65 Carats Dimension: 10.8x10.3x7.9 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
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W 0.41 in D 0.32 in L 0.43 in
Blue Green Tourmaline Ring Gem 5.05 Carat Cushion Unmounted Loose Gemstone
By Tamir
Located in Beverly Hills, CA
5.05 carat unisex Blue-Green Tourmaline cushion loose gemstone, offered unmounted to someone very
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Tourmaline

Blue Green Tourmaline Ring Gem 11.35 Carat Emerald Cut Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Magnificent 11.35 carat Bluish Green Tourmaline emerald cut gem, offered loose to an avid gemstone
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Blue Green Tourmaline Gem 9.64 Carat Unset Emerald Cut Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Exclusive 9.64 carat elongated emerald-cut Bluish Green Tourmaline gem offered loose to a very
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Other, Tourmaline

Mint Green Tourmaline Ring Gem 4.52 Carat Unmounted Trillion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Unique 4.52 carat Mint Green Tourmaline Trillion loose gemstone, offered unmounted to someone
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 4.78 Carat Unmounted Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Gorgeous 4.78 carat Mint Green Tourmaline cushion loose gemstone, offered unmounted to a devoted
Category

21st Century and Contemporary Mozambican Contemporary Loose Gemstones

Materials

Tourmaline

Emerald Shape Natural Loose Green Tourmaline 2.60 Carat Earth Mine Gem
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.60 Carat Dimension: 9 x 5.8 x 5.3 Mm Colour: Dark Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 4.49 Carat Unmounted Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Fantastic 4.49 carat Mint Green Tourmaline cushion loose gemstone, offered unmounted to someone
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 3.46 Carat Unmounted Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Vibrant 3.46 carat Mint Green Tourmaline cushion loose gemstone, offered unmounted to someone very
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

Sparkling 6.0 Carats Natural Loose Mint Green Tourmaline Trilliant Shape Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 6.0 Carats Dimension: 11.3x11.3x7.9 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Stunning 6.10 Carats Natural Loose Tourmaline Light Green Color Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 6.10 Carats Dimension: 13.1x8.2x6.4 Mm Origin: Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.75 Cts Natural Loose Mint Green Tourmaline Emerald Shape Ring Gem
Located in Peshawar, PK
: Emerald Color: Mint Treatment: Non Certificate: On Demand Mint green tourmaline, a captivating gemstone
Category

21st Century and Contemporary Afghan Art Nouveau Loose Gemstones

Materials

Tourmaline

Vivid Green Tourmaline, Faceted Gem, 12, 30 Ct., Loose Gemstone, Oval
Located in Kirschweiler, DE
We are delighted to be able to offer, this 12,30 ct. green Tourmaline from our collection. This
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Tourmaline

1.75 Carat Natural Loose Green Tourmaline Cushion Gem For Jewellery Making
Located in Peshawar, PK
Loose Green Tourmaline Weight: 1.75 Carats Dimension: 6.1 x 7.6 x 4.7 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.95 Carats Natural Loose Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.95 Carats Dimension: 9.8 x 6.1 x 5.3 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 5.62 Carat Cushion Unmounted Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Pastel Mint Green Tourmaline cushion gem, weighing a total of 5.62 carats, offered unmounted to a
Category

21st Century and Contemporary Congolese Contemporary Loose Gemstones

Materials

Tourmaline

1.50 Carat Natural Vibrant Green Loose Tourmaline Ring Gem Emerald Shape
Located in Peshawar, PK
Loose Tourmaline Weight: 1.50 Carats Dimension: 7.4x5.1x4.8 Mm Origin; Afghanistan Shape: Emerald
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Ring Gem 7.68 Carat Unmounted Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Pristine 7.68 carat Mint Green Tourmaline cushion loose gemstone, offered unmounted to a fine gem
Category

21st Century and Contemporary Congolese Contemporary Loose Gemstones

Materials

Tourmaline

2.55 Carats Natural Loose Emerald Shape Green Tourmaline Gem For Ring
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.55 Carats Dimension: 8.5 x 6.5 x 5.5 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Mint Green Loose Tourmaline Jewelry Gem 24.20 Carat Asscher Cut
Located in Peshawar, PK
tourmalines are tourmalines with pastel hues of light green to blueish green or yellowish green. Tourmalines
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Mint Green Loose Tourmaline Ring Gem 5.95 Carat Cushion Gemstone
Located in Peshawar, PK
tourmalines are tourmalines with pastel hues of light green to blueish green or yellowish green. Tourmalines
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Mint Green Loose Tourmaline Ring Gem 5.95 Carat Cushion Gemstone
Gorgeous Mint Green Loose Tourmaline Ring Gem 5.95 Carat Cushion Gemstone
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H 0.38 in W 0.39 in D 0.33 in L 0.38 in
1.95 Carats Natural Black Green Loose Bicolour Tourmaline Emerald Shape Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 1.95 Carats Dimension: 9.8x5.2x4.3 Mm Origin; Skardu Pakistan Shape
Category

Antique 15th Century and Earlier Pakistani Art Nouveau Loose Gemstones

Materials

Tourmaline, Chrome Tourmaline

Limited Edition Mint Green Tourmaline 2.45 carats Cushion Cut Afghani Loose Gems
Located in Bangkok, TH
genuine mint green Tourmaline gemstone. With limited stock available, now is the time to secure your own
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Gorgeous Mint Green Loose Tourmaline Ring Gem 1.85 Carat Cushion Cut Gemstone
Located in Peshawar, PK
are tourmalines with pastel hues of light green to blueish green or yellowish green. Tourmalines make
Category

Antique Early 17th Century Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Chrome Tourmaline

Excellent Mint Green Loose Tourmaline Stone 1.05 Carats Fine Jewelry Fine Gems
Located in Bangkok, TH
Excellent Mint Green Loose Tourmaline Stone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.40 Carats Natural Loose Emerald Shape Mint Green Tourmaline Gem For Ring
Located in Peshawar, PK
Loose Mint Tourmaline Weight: 3.40 Carats Dimension: 11.1 x 7.3 x 5.1 Mm Colour: Mint Green Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.10 Carat Natural Loose Mint Green Tourmaline Long Cushion Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 3.10 Carats Dimension: 11 x 7 x 4.9 Mm Colour : Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.35 Carat Natural Loose Mint Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 2.35 Carats Dimension: 10.6 x 5.6 x 4 Mm Colour : Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Mint Green Loose Tourmaline Ring Gem 12.35 Carats Asscher Cut Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 12.35 Carats Dimension: 13.3x13.3x9.8 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.10 Carats Natural Loose Bluish Green Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Bluish Green Tourmaline Weight: 2.10 Carats Dimension: 8.8 x 6.6 x 4.4 Mm Treatment: Non
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.40 Carat Natural Loose Green Lagoon Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Green Lagoon Tourmaline Weight: 3.40 Carats Dimension: 8.3 x 7.2 x 6.5 Mm Colour: Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.85 Carat Natural Loose Green Tourmaline Emerald Shape Gem From Earth Mine
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.85 Carats Dimension: 9.4 x 7.2 x 4.4 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Pair 4.15 carats Baguette Cut Natural Loose Afghani Gems
Located in Bangkok, TH
tourmaline tourmaline stone price green tourmaline stone tourmaline price tourmaline jewelry tourmaline color
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

4.60 Carat Natural Loose Green Lagoon Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Green Lagoon Tourmaline Weight: 4.60 Carats Dimension: 10.2 x 8 x 6.4 Mm Colour: Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.50 Carat Natural Loose Mint Green Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 2.50 Carats Dimension: 7.1 x 6.6 x 6.1 Mm Colour: Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Natural Loose Green Tourmaline Pair 8.0 Carat Emerald Shape Gem For Earrings
Located in Peshawar, PK
Loose Green Tourmaline Pair Weight: 8.0 Carats Dimension: 10.5 x 7.1 x 6.5 Mm Colour: Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.15 Carat Natural Loose Bright Green Tourmaline Emerald Shape Gem For Jewellery
Located in Peshawar, PK
Loose Bright Green Tourmaline Weight: 3.15 Carats Dimension: 13 x 6 x 4.5 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.05 Carat Natural Loose Green Tourmaline Oval Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.05 Carats Dimension: 7.9 x 6.9 x 6.2 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.00 Carat Natural Loose Mint Green Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 1.00 Carats Dimension: 5.6 x 5.3 x 4.4 Mm Colour: Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.45 Carat Natural Loose Mint Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 1.45 Carats Dimension: 7.8 x 5.2 x 4 Mm Colour: Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.15 Carat Natural Loose Green Tourmaline Cushion Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Green Tourmaline Weight: 2.15 Carats Dimension: 6.9 x 7.2 x 5.5 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

4.15 Carat Natural Loose Green Tourmaline Long Emerald Shape Gem For Necklace
Located in Peshawar, PK
Loose Green Tourmaline Weight: 4.15 Carats Dimension: 14 x 6.1 x 5.2 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.70 Carat Natural Loose Mint Green Tourmaline Emerald Gem For Jewellery Making
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 3.70 Carats Dimension: 9.3 x 8.3 x 5.7 Mm Colour: Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

5.00 Carat Natural Loose Green Tourmaline Cushion Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Green Tourmaline Weight: 5.00 Carats Dimension: 10.7 x 8.1 x 7 Mm Colour: Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

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Loose Green Tourmaline Gems For Sale on 1stDibs

Browse a vast assortment of loose green tourmaline gems for sale on 1stDibs. These distinct designs — crafted with great care and often made from 18k Gold, Gold and Platinum — can elevate any look. Pieces in our collection of loose green tourmaline gems made by Modern jewelers — as well as those associated with Contemporary — are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Merkaba, Tamir and Sarosi By Timeless Gems are consistently popular. Today, if you’re looking for emerald cut loose green tourmaline gems and are unable to find the perfect match, our selection also includes cushion cut and oval cut alternatives. Most of our loose green tourmaline gems for sale are for women, but there are 32 pieces available to browse for men.

How Much are Loose Green Tourmaline Gems?

Prices for loose green tourmaline gems start at $550 and top out at $77,080 with these rings, on average, selling for $4,244.

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.