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Greenish Blue Natural Tourmaline Stone 4.87 Carats Loose Tourmaline For Ring
Located in Bangkok, TH
Greenish Blue Natural Tourmaline stone for jewelry, available for sale at wholesale price, Flawless
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Tourmaline

3.21 Carats Loose Blue Tourmaline Stone Cushion Cut Natural Afghan Gemstone
Located in Bangkok, TH
Cut Step Cushion The 3.21 carats Blue Tourmaline Stone is a captivating and exquisite gemstone
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.20 Carats Lagoon Blue Loose Tourmaline Stone Cushion Cut Afghani Gemstone
Located in Bangkok, TH
cushion Cut fancy cushion The stunning 3.20 carat Lagoon Blue Tourmaline Stone showcases the
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.80 Carats Greenish Blue Loose Tourmaline Stone Cushion Cut Afghan Gemstone
Located in Bangkok, TH
cushion Cut fancy cushion The 3.80 carat Greenish Blue Tourmaline stone, meticulously cut into a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Loose Paraiba Tourmaline - oval cut - light blue - 29.97cts
Located in SYDNEY, AU
A loose oval cut light blue Paraiba Tourmaline of 29.97cts. This stone is available to be set
Category

Early 2000s Malagasy Loose Gemstones

Materials

Tourmaline, Paraiba

Loose Paraiba Tourmaline - oval cut - light blue - 29.97cts
Loose Paraiba Tourmaline - oval cut - light blue - 29.97cts
Free Shipping
W 0.8 in D 0.48 in L 0.68 in
9.43 carats Bicolor Loose Tourmaline Stone Cushion Cut African Gemstone
Located in Bangkok, TH
Shape cushion Cut fancy cushion The 9.43 carats Bi color Tourmaline stone, meticulously cut into a
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Tourmaline

4.55 Carats Natural Loose Electric Blue Indicolite Tourmaline Gem
Located in Peshawar, PK
Loose Indicolite Tourmaline Weight: 4.55 Carats Dimension: 12.2x7.8x5.4 Mm Origin: Kunar
Category

21st Century and Contemporary Afghan Art Deco Loose Gemstones

Materials

Indicolite, Tourmaline

3.96 Carats Natural Loose Tourmaline Stone Pair Cushion Cut Afghan Gemstone
Located in Bangkok, TH
cushion Cut fancy cushion The 3.96 carat Natural Tourmaline stone pair, meticulously cut into a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Beautiful Greenish Blue Tourmaline Stone 1.25 Carats Tourmaline Gemstone Jewelry
Located in Bangkok, TH
Beautiful Greenish Blue Tourmaline Stone of 1.25 carats from Afghanistan has a wonderful cut in a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Soft Blue Tourmaline From Africa 2.30 Carats Natural Tourmaline Stone
Located in Bangkok, TH
Soft Blue Tourmaline From Africa of 2.30 carats from Africa has a wonderful cut in a Octagon shape
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Tourmaline

1.45 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 1.45 Carats Dimension: 6.2 x 6 x 5.2 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.60 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 3.60 Carats Dimension: 7.9 x 8.7 x 6.4 Mm Shape: Cushion
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.75 Carat Natural Loose Blue Tourmaline Emerald Shape Included Gemstone
Located in Peshawar, PK
Loose Blue Tourmaline Weight: 3.75 Carats Dimension: 10.7 x 8.1 x 4.7 Mm Colour: blue Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.65 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Blue Green Tourmaline Weight: 1.65 Carat Dimension: 7.7 x 5.7 x 4.9 Mm Colour: Blue Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

14.95 Carats Natural Loose Blue Indicolite Tourmaline Gemstone Emerald Shape
Located in Peshawar, PK
Loose Indicolite Tourmaline Weight: 14.95 Carats Dimension: 16.8x11.3x8.7 Mm Origin: Kunar
Category

21st Century and Contemporary Afghan Aesthetic Movement Loose Gemstones

Materials

Indicolite, Tourmaline

3.05 Carats Sea Form Loose Tourmaline Stone Pair Round Cut Afghan Gemstones
Located in Bangkok, TH
clean Shape round Cut round brilliant This exquisite pair of Afghan tourmaline gemstones, each
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.25 carats Lagoon Blue Loose Tourmaline Cushion Cut Natural Afghan Gemstone
Located in Bangkok, TH
. tourmaline tourmaline stone tourmaline jewellery blue tourmaline tourmaline for sale tourmaline price
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Tiffany Blue Loose Tourmaline 1.65 Carats Baguette Cut Natural Afghan Gemstone
Located in Bangkok, TH
elegance. tourmaline paraiba tourmaline tourmaline stone tourmaline birthstone tourmaline jewellery blue
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

4.61 carats Loose Greenish Blue Tourmaline Cushion Cut Natural Afghani Gemstone
Located in Bangkok, TH
blue tourmaline tourmaline gemstone green tourmaline stone tourmaline price
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Lagoon Blue Loose Tourmaline 1.60 Carats Emerald Cut Natural Afghan Gemstone
Located in Bangkok, TH
paraiba tourmaline tourmaline stone tourmaline birthstone tourmaline jewellery blue tourmaline indicolite
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Greenish Blue Tourmaline 2.70 carats Emerald Cut Natural Afghani Loose Gemstone
Located in Bangkok, TH
Greenish Blue Tourmaline, a 2.70 carat gemstone of unrivaled natural beauty. This Afghani treasure boasts
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

4.97 carats Greenish Blue Loose Tourmaline Cushion Cut Natural Afghani Gemstone
Located in Bangkok, TH
exquisite gemstone. tourmaline tourmaline stone green tourmaline tourmaline jewellery blue tourmaline
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

5.09 Carats Loose Greenish Blue Tourmaline Pair Emerald Cut Afghan Gemstones
Located in Bangkok, TH
Shape octagon Cut emerald This exquisite pair of fine quality Greenish Blue Tourmaline gemstones
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Neon Blue Loose Tourmaline 1.65 Carats Scissors Cut Natural Afghan Gemstone
Located in Bangkok, TH
tourmaline stone tourmaline birthstone tourmaline jewellery blue tourmaline tourmaline gemstone green
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

2.40 Carat Blooming Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 2.40 Carats Dimension: 8.3 x 7.3 x 5.2 Mm Shape: Cushion
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Certified 2.33 Carat Natural Paraiba Neon Blue Colour Loose Tourmaline Gem
Located in Peshawar, PK
Loose Paraiba Colour Tourmaline Weight: 2.33 Carats Dimension: 11.4 x 7.6 x 4.7 Mm Colour: Neon
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.40 Carat Marvellous Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 3.40 Carats Dimension: 9.2 x 7.2 x 6.2Mm Colour: Blue Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.40 Carat Natural Loose Blue Seafoam Tourmaline Long Cushion Shape Gemstone
Located in Peshawar, PK
Loose Blue Seafoam Tourmaline Weight: 2.40 Carats Dimension: 10.6 x 6.1 x 4.1 Mm Colour: Blue
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.45 Carat Natural Loose Blue Green Included Tourmaline Square Shape Gemstone
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 6.45 Carats Dimension: 9.8 x 9.8 x 8.5 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Exquisite 11.10 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Bluish Green Tourmaline Weight: 11.10 Carats Dimension: 16 x 11.6 x 7.5 Mm Colour: Bluish
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Natural Bicolor Tourmaline Stone 3.80 Carats Tourmaline Stone for Jewellery
Located in Bangkok, TH
Tourmaline Stone Tourmaline Loose Gemstone Cuttingstone Facetedrough Cleanstone Gemstoneforjewelry
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Natural Indicolite Tourmaline Stone 2.45 Carats Tourmaline Stone for Jewellery
Located in Bangkok, TH
Tourmaline Stone Tourmaline Loose Gemstone Cuttingstone Facetedrough Cleanstone Gemstoneforjewelry
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Indicolite

28.75 Cts Natural Loose Blue Green Bicolor Tourmaline For Necklace Jewellery
Located in Peshawar, PK
: Bicolor Blue Green Treatment: Non Shape: Emerald Certificate: on customer demand . Bicolour tourmaline
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.50 Carat Natural Loose Blue Indicolite Tourmaline Ring Gemstone Emerald Shape
Located in Peshawar, PK
Loose Tourmaline Weight: 2.50 Carats Dimension: 8.5x6.5x4.5 Mm Origin: Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

The Gorgeous Color Loose Natural Blue Bicolor Tourmaline Gemstone 7.50 Carats
Located in Peshawar, PK
, resembling a watermelon slice. Other popular types include "Paraíba tourmaline," known for its vivid blue
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Greenish Blue Fancy Cut Tourmaline Gem 1.65 Carats Tourmaline Stone For Jewelry
Located in Bangkok, TH
Greenish Blue Fancy Cut Tourmaline Gem, Available For Sale At Wholesale Price Natural High Quality
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

5.25 Carat Natural Loose Blue Seafoam Tourmaline Cushion Cut Ring Gemstone
Located in Peshawar, PK
Faceted Tourmaline Weight: 5.25 Carats Dimension: 12x10.4x6.1 Mm Origin: Afghanistan Shape
Category

Antique Late 19th Century Afghan Art Deco Loose Gemstones

Materials

Indicolite, Tourmaline

Gorgeous Indicolite Tourmaline Stone 2.15 Carats Tourmaline Stone for Jewellery
Located in Bangkok, TH
Ring Tourmaline Necklace Tourmaline Bracelets Tourmaline Stone Tourmaline Loose Gemstone Cuttingstone
Category

21st Century and Contemporary Congolese Modern Loose Gemstones

Materials

Tourmaline, Indicolite

1.05 Carat Natural Loose Blue Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 1.05 Carats Dimension: 6 x 5.4 x 4.7 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.05 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 2.05 Carat Dimension: 6.7 x 6.4 x 5.9 Mm Colour: Blue And
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.70 Carat Natural Loose Ink Blue Tourmaline Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Ink Blue Tourmaline Weight: 3.70 Carats Dimension: 10 x 7.6 x 6.6 Mm Colour: Ink Blue Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.15 Carat Natural Loose Blue Green Tourmaline Emerald Shape Gem For Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 3.15 Carats Dimension: 10.2 x 5.8 x 5.8 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Rare Color 5.05 Carat Natural Loose Blue Seafoam Tourmaline Emerald Shape Gem
Located in Peshawar, PK
Loose Blue Seafoam Tourmaline Weight: 5.05 Carats Dimension: 15.5 x 6.5 x 5.6 Mm Colour: Blue
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

0.90 Carat Natural Loose Ink Blue Tourmaline Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Ink Blue Tourmaline Weight: 0.90 Carats Dimension: 7.9 x 5.5 x 3 Mm Colour: Ink Blue Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.10 Carat Natural Loose Blue Green Tourmaline Square Shape Gem For Ring
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 1.10 Carats Dimension: 5.6 x 5.8 x 4.6 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Indicolite Blue Natural Tourmaline Ring Loose Gemstone 4.20 Ct Step Emerald Cut
Located in Peshawar, PK
mesmerizing vibrant lagoon blue color, characteristic of tourmalines from the Kunar province in Afghanistan
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline, Indicolite

Intense Ink Indigo Blue Loose Tourmaline 1.35 Carat with Cushion Shape Gem
Located in Peshawar, PK
Blue Indicolite Tourmaline Weight : 1.35 Carats Dimensions : 7.2x5.9x4.8 Mm Origin : Kunar
Category

Antique 17th Century Afghan Arts and Crafts Loose Gemstones

Materials

Indicolite, Tourmaline

3.05 Carat Emerald Cut Natural Loose Open Green Loose Tourmaline Ring Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 3.05 Carats Dimension: 10.3x6.3x5.4 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.55 Carat Adorable Natural Loose Ink Blue Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Ink Blue Tourmaline Weight: 2.55 Carats Dimension: 8 x 6.8 x 5.7 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.75 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gem From Earth Mine
Located in Peshawar, PK
Loose Blue Green Tourmaline Weight: 2.75 Carats Dimension: 7.3 x 7.3 x 6.8 Mm Colour: Blue Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

10.95 carats Greenish Blue Tourmaline Stone Cushion Cut African Gemstone
Located in Bangkok, TH
cushion Cut fancy cushion The 10.95 carat Greenish Blue Tourmaline stone, meticulously cut into a
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Tourmaline

15.16 carats Lagoon Blue Tourmaline Stone Cushion Cut Afghan Gemstone
Located in Bangkok, TH
clean Shape cushion Cut fancy cushion This exquisite 15.16 carat Lagoon Blue Tourmaline gemstone
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

2.12 carats Lagoon Blue Tourmaline Stone Cushion Cut Afghan Gemstone
Located in Bangkok, TH
rectangular Cut Step Cushion Cut This exquisite 2.12 carat Lagoon Blue Tourmaline gemstone is a stunning
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

6.97 Carats blue Tourmaline Octagon Faceted cut stone Natural Gemstone
Located in Jaipur, RJ
6.97 Carats greenish blue Tourmaline Octagon Faceted cut stone Natural Gemstone Gemstone
Category

21st Century and Contemporary Nigerian Art Deco Loose Gemstones

Materials

Tourmaline

3.27 carats Greenish Blue Tourmaline Stone Scissor Cut Afghan Gemstone
Located in Bangkok, TH
Shape Octagon Cut: Scissors Cut The 3.27 carat Greenish Blue Tourmaline stone, meticulously cut into
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

2.54 carats Greenish Blue Tourmaline Stone Scissor Cut African Gemstone
Located in Bangkok, TH
Shape octagon Cut scissors The 2.54 carat Greenish Blue Tourmaline stone, meticulously cut into a
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Tourmaline

2.75 Carat Natural Loose Pink Tourmaline Cushion Gemstone
Located in Peshawar, PK
Loose Pink Tourmaline Weight: 2.75 Carats Dimension: 8.7 x 7.5 x 5.3 Mm Shape: Cushion Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.75 Carat Natural Loose Pink Tourmaline Cushion Gemstone
2.75 Carat Natural Loose Pink Tourmaline Cushion Gemstone
Free Shipping
W 0.3 in D 0.21 in L 0.35 in
9.75 carats Lagoon Blue Tourmaline Stone Scissor Cut Afghan Gemstone
Located in Bangkok, TH
clean Shape octagon Cut scissors This exquisite 9.75 carat Lagoon Blue Tourmaline gemstone is a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

2.35 Carat Natural Loose Pink Tourmaline Ring Gemstone
Located in Peshawar, PK
blue to green colors, Paraíba tourmaline commands high prices in the gemstone market due to its
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.35 Carat Natural Loose Pink Tourmaline Ring Gemstone
2.35 Carat Natural Loose Pink Tourmaline Ring Gemstone
Free Shipping
W 0.25 in D 0.2 in L 0.36 in
2.80 Carat Natural Loose Tourmaline Lot For Jewellery
Located in Peshawar, PK
Loose Tourmaline Lot Weight: 2.80 Carats Sizes: 0.45 To 0.70 Carat Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

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Blue Tourmaline Loose Stone For Sale on 1stDibs

Surely you’ll find the exact blue tourmaline loose stone you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of silver, sterling silver and gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. You’re likely to find the perfect blue tourmaline loose stone among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. Finding an appealing blue tourmaline loose stone — no matter the origin — is easy, but Martha Seely, Sarosi By Timeless Gems and Gems and Jewels UK each produced a popular version that is worth a look. A brilliant cut version of this piece has appeal, but there are also cushion cut and emerald cut versions for sale. Finding a blue tourmaline loose stone for sale for women should be easy, but there are 30 pieces available to browse for unisex as well as men, too.

How Much is a Blue Tourmaline Loose Stone?

Prices for a blue tourmaline loose stone can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $62 and can go as high as $165,200, while this accessory, on average, fetches $1,446.

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.