Skip to main content

Loose Tourmaline

53
to
220
351
94
392
356
165
33
11
5
3
2
2
1
16
3
23
1,626
1
3
2
1
158
33
22
15
5
1,527
134
7
1,631
37
75
16
45
25
22
1,583
144
99
84
19
472
422
218
110
71
to
Sort By
Lovely Indicolite Loose Tourmaline Gemstone 1.50cts Finegems
Located in Bangkok, TH
Lovely Indicolite Loose Tourmaline Gemstone, Tourmaline For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Indicolite

Adorable Natural Loose Tourmaline Gemstone 2.65 Carats Tourmaline Ring
Located in Bangkok, TH
Adorable Natural Loose Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Tourmaline

Indicolite Natural Loose Tourmaline Gemstone 1.20 CTS Tourmaline Jewelry
Located in Bangkok, TH
Indicolite Natural Loose Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Indicolite

Deep Indicolite Loose Tourmaline 1.80 Carats Tourmaline Jewelry
Located in Bangkok, TH
Deep Indicolite Loose Tourmaline of 1.80 carats from Madagascar has a wonderful cut in a Octagon
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Indicolite

Fancy Greenish Blue Loose Tourmaline Gemstone 3.60 Carats
Located in Bangkok, TH
Fancy Greenish Blue Loose Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Beautiful Bicolor Loose Tourmaline Gemstone 3.25 CTS Tourmaline From Afghanistan
Located in Bangkok, TH
Beautiful Bicolor Loose Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Stunning Natural Loose Tourmaline Gemstone 2.05 Carats Faceted Tourmaline
Located in Bangkok, TH
Stunning Natural Loose Tourmaline Gemstone, available for sale at wholesale price natural high
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Beautiful Natural Loose Tourmaline Gemstone 1.25 Carats Loose Tourmaline
Located in Bangkok, TH
Beautiful Natural Loose Tourmaline Gemstone, available for sale at wholesale price natural high
Category

21st Century and Contemporary Afghan Modern Solitaire Rings

Materials

Tourmaline

Gorgeous Soft Green Loose Tourmaline Gemstone 2.30 Carats Tourmaline Jewellery
Located in Bangkok, TH
Gorgeous Soft Green Loose Tourmaline Gemstone 2.30 carats from Afghanistan has a wonderful cut in a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Stunning Bicolor Loose Tourmaline 3.75 Carats Tourmaline Gemstone for Rings
Located in Bangkok, TH
Stunning Bicolor Loose Tourmaline, available for sale at wholesale price, natural high-quality
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Sweet Pink Natural Loose Tourmaline 2.31 Carats Tourmaline Stone for Jewellery
Located in Bangkok, TH
Sweet Pink Natural Loose Tourmaline, available for sale at wholesale price, natural high-quality
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

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

Natural Greenish Blue Loose Tourmaline Gem 1.50 Carats Faceted Tourmaline Ring
Located in Bangkok, TH
Natural Greenish Blue Loose Tourmaline Gem, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

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

Gorgeous Saefoam Loose Tourmaline Gemstone 4.20cts Tourmaline from Afghanistan
Located in Bangkok, TH
Gorgeous Saefoam Loose Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Genuine 8.15 Carats Natural Loose Bicolor Loose Tourmaline Scissor Emerald Shape
Located in Peshawar, PK
Loose Tourmaline Weight: 8.15 Carats Dimension: 14.7x8.6x7.2 Mm Origin: Paprok Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Natural Loose Tourmaline Ring Gem 1.80 Carats Afghanistan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 1.80 Carats Dimension: 8.8x5.7x4.3 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Anglo-Indian Loose Gemstones

Materials

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

Greenish Blue Natural Tourmaline Stone 4.87 Carats Loose Tourmaline For Ring
Located in Bangkok, TH
Tourmaline Stone 4.87 Carats Loose Tourmaline For Ring Tourmaline Gemstone Tourmaline Necklace Tourmaline
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Tourmaline

Mint Green Tourmaline Gemstones Lot Natural Loose Tourmaline from Afghanistan
Located in Bangkok, TH
Clarity SI to Eye clean Origin Afghanistan Treatment None his lot features natural, loose tourmaline
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

4.25 Carats Natural Loose Tourmaline Pieces For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Weight: 4.25 Carats Size: 1.85 , 1.35 , 0.95 Carats Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

7.15 Carat Natural Loose Tourmaline Lot For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline lot Weight: 7.15 Carats Sizes: 0.55 to 1.10 Carats Treatment: Non Certificate: On
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.45 Carats Natural Loose Tourmaline Gemstone For Pendant Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 2.45 Carats Dimension: 13.2x5.1x3.9 Mm Origin; Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

9.60 Carat Natural Loose Tourmaline Lot For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Lot Weight: 9.60 Carats Sizes: 1.25 to 2.20 Carat Colour: Mint Green And White
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Brilliant Natural Loose Tourmaline Gemstone 1.55 Carats Green Tourmaline
Located in Bangkok, TH
Brilliant Natural Loose Tourmaline Gemstone, available for sale at wholesale price natural high
Category

21st Century and Contemporary Afghan Modern Cocktail Rings

Materials

Tourmaline

3.55 Carat Natural Loose Tourmaline Set Gem For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Set Weight: 3.55 Carats Sizes: 0.90 to 1.65 Carat Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.24ct Loose Tourmaline Gemstone - Pink Square Cut
Located in Greensboro, NC
This lovely gemstone is certain to become a treasured piece in your collection! It has a beautiful pink hue that looks beautiful in person. Please check out our enlarged photographs....
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

4.60 Carats Sparkling Round Mint Loose Tourmaline Engagement Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 4.60 Carats Dimension: 11.2x11.2x6.7 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

11.25 Carats Natural Peach Pink Loose Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 11.25 Carats Dimensions: 16.1x10.1x8.4 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Natural Loose Tourmaline Pieces Hexagon Cut 3.10 Carats Together
Located in Peshawar, PK
Loose Tourmaline Weight: 3.10 Carats Dimension: 1: 7.2 x 6.8 x 5 Mm Dimension 2: 7.9 x 6.9 x 5.5
Category

21st Century and Contemporary Congolese Arts and Crafts Loose Gemstones

Materials

Tourmaline

Beauteous 1.90 Cts Blueish Green Loose Tourmaline Ring Gemstone Afghan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 1.90 Carats Shape: Long Cushion Dimension: 7.9x5.7x5.1 Mm Origin: Kunar
Category

21st Century and Contemporary Afghan Artist Loose Gemstones

Materials

Tourmaline

25.10 Carats Natural Loose Tourmaline Peach Red Color Afghanistan Earth Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 25.10 Carats Dimension: 17.2x16.1x13.3 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Art Nouveau Loose Gemstones

Materials

Tourmaline, Rubelite

Natural 3.10 Carats Mintgreen Loose Tourmaline Long Cushion Shape Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 3.10 Carats Dimension: 9.1x7x6.2 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

4.40 Carats Natural Genuine Loose Tourmaline Lot Emerald Shape For Jewellery Set
Located in Peshawar, PK
Loose Tourmaline Weight: 4.40 Carats Size: 1.05 to 1.75 Carats Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Art Nouveau Loose Gemstones

Materials

Tourmaline

3.00 Carat Natural Loose Tourmaline Emerald Shape Gem From Earth Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 3.00 Carats Dimension: 10.5 x 6.2 x 5.1 Mm Colour: Greenish Yellow Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.05 Carat Natural Loose Tourmaline Cushion Shape Gem For Ring Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 3.05 Carats Dimension: 8.5 x 7.5 x 6.1 Mm Colour: Yellowish Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

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

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

Gorgeous 6.35 Carats Mint Bicolor Loose Tourmaline Ring Gemstone Kunar Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 6.35 Carats Dimension: 11.3x8.7x7.3 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

2.35 Carats Natural Baby Pink Loose Tourmaline Ring Gemstone Afghanistan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 2.35 Carats Dimension: 8.8x7x4.8 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

4.15 Carats Asscher Cut Soft Pink Loose Tourmaline Ring Gem Afghanistan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 4.15 Carats Dimension: 9.5x9.5x6.4 Mm Origin: Afghanistan Shape: Square
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.90 Carats Multi Shape Natural Loose Tourmaline Lot Gem For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Lot Weight: 6.90 Carats Sizes: 0.40 to 1.65 Carats Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.10 Carats Natural Pink Bicolor Loose Tourmaline Emerald Shape Ring Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 6.10 Carats Dimension: 11.7x10.1x6.9 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Art Nouveau Loose Gemstones

Materials

Tourmaline

1.01ct Loose Tourmaline Gemstone - Purplish Pink Pear Cut
Located in Greensboro, NC
This gemstone has beautiful color that will certainly please. It's pear shape would look lovely set in a jewelry mount or would look great in your gemstone collection! Please check o...
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

1.41ct Genuine Loose Tourmaline Gemstone - Reddish Orange Oval
Located in Greensboro, NC
This gemstone has gorgeous reddish orange hues and a great oval cut. It would make a most excellent addition to a collection or jewelry mount! Please check out our enlarged photos. ...
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

17.86 Carat Loose Tourmaline Gemstone, Genuine Green Rectangular
Located in Greensboro, NC
This gemstone has lovely green color and an attractive rectangular cut. It would make a most excellent addition to a collection or jewelry mount! Please check out our enlarged photog...
Category

20th Century Unknown Loose Gemstones

Materials

Tourmaline

1.40 Carats Small Colorless Loose Tourmaline With Pink Shade For Ring Jewelry
Located in Peshawar, PK
Loose Tourmaline Weight: 1.40 Carats Dimension: 6.2x6.2x5.1 Mm Origin: Afghanistan Shape: Cushion
Category

21st Century and Contemporary Afghan Aesthetic Movement Loose Gemstones

Materials

Tourmaline

Top Quality Peach Color Loose Tourmaline Oval Shape 21.40 Carats Afghani Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 21.40 Carats Dimension: 18.7x15.9x11.4 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Huge 24.40 Carats Bi Color Loose Tourmaline Emerald Shape For Necklace Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 24.40 Carats Dimension: 21X11.6x10.1 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.25 Carats Stunning Pear Shape Loose Tourmaline Ring Gem From Congo Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 2.25 Carats Dimension: 13x7.14 Mm Origin: Africa Color; Yellow Brown
Category

21st Century and Contemporary Congolese Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.50 Carat Natural Loose Tourmaline Set Multi Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Set Weight: 6.50 Carats Size: 1.45 to 1.80 Carat Colour: Multi Colour Origin
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

7.20 Carats Natural Mint Green Loose Tourmaline Oval Shape Ring Gem Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 7.20 Carats Dimension: 15.3x11x6.9 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.32ct Loose Tourmaline Gemstone - Oval Genuine 8.19mm x 6.64mm
Located in Greensboro, NC
This lovely gemstone would make a great addition to a collection! Please check out our enlarged photographs. Weight: 1.32ct Color: Green Shape: Oval Measurements: 8.19mm x 6.64mm ...
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

1.42ct Loose Tourmaline Gemstone - Oval Pinkish Purple 8.91mm x 6.79mm
Located in Greensboro, NC
This lovely gemstone would make a most excellent addition to a collection! Please check out our enlarged photographs. Weight: 1.42ct Color: Pinkish Purple Shape: Oval Measurement...
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

Adorable Natural Green Tourmaline Stone 1.55 Cts Loose Tourmaline for Jewelry
Located in Bangkok, TH
Adorable Natural Green Tourmaline Stone, Available For Sale At Wholesale Price Natural High Quality
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Gorgeous Fancy Cut 1.80 Carat Natural Green Loose Tourmaline Gemstone
Located in Peshawar, PK
Gemstone Type : Tourmaline Weight : 1.80 Carats Dimensions : 7.7x6.5x5.5 Mm Origin : Kunar
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Pretty Blue Indicolite Tourmaline Gemstone 1.90 CTS Loose Tourmaline For Jewelry
Located in Bangkok, TH
Pretty Blue Indicolite Tourmaline Gemstone, Available For Sale At Wholesale Price Natural High
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline, Indicolite

Beautiful Indicolite Tourmaline Stone 1.90 Carats Loose Tourmaline Gems for Ring
Located in Bangkok, TH
Beautiful Indicolite Tourmaline Stone, Available for sale at wholesale price natural high quality
Category

21st Century and Contemporary Congolese Modern Loose Gemstones

Materials

Tourmaline, Indicolite

  • 1
  • ...
Get Updated with New Arrivals
Save "Loose Tourmaline", and we’ll notify you when there are new listings in this category.

Loose Tourmaline For Sale on 1stDibs

Find the exact loose tourmaline you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using 18k Gold, Gold and Platinum. Our collection of these items for sale includes 5 vintage editions and 90 modern creations to choose from as well. Finding the perfect loose tourmaline may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. Finding an appealing loose tourmaline — no matter the origin — is easy, but Merkaba, Sarosi By Timeless Gems and Tamir each produced a popular version that is worth a look. A cushion cut version of this piece has appeal, but there are also oval cut and emerald cut versions for sale. Finding a loose tourmaline for sale for women should be easy, but there are 61 pieces available to browse for unisex as well as men, too.

How Much is a Loose Tourmaline?

On average, a loose tourmaline at 1stDibs sells for $5,650, while they’re typically $550 on the low end and $190,905 for the highest priced versions of this item.

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.