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Amethyst Loose Gems

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Fantastic Purple Amethyst Loose Gem 9.30 Amethyst Ring Amethyst Jewelry
Located in Bangkok, TH
Fantastic Purple Amethyst Loose Gem, Available for sale at wholesale price natural high quality at
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Amethyst

Cushion-Cut Soft Purple Amethyst Gemstone 8.16 Carats, Amethyst Stone, Amethyst
Located in Bangkok, TH
Loose Gems, Amethyst Cut Gems, Amethyst Ring, Amethyst Jewelry, 1stdibs,
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Amethyst

Stunning Loose Green Amethyst Ring Gem 3.30 Carats
Located in Peshawar, PK
Loose Amethyst Color: Light Green Weight: 3.30 Carats Dimension: 8.6x8.5x7.2 Mm Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst, Quartz

Stunning Loose Green Amethyst Ring Gem 3.30 Carats
Stunning Loose Green Amethyst Ring Gem 3.30 Carats
Free Shipping
W 0.34 in D 0.29 in L 0.34 in
9.05 Carats Natural Loose Amethyst Ring Gem Brazil Mine
Located in Peshawar, PK
Loose Amethyst Weight: 9.05 Carats Dimension: 15.1x12.3x7.3 Mm Origin: Brazil Shape: Cushion
Category

21st Century and Contemporary Bolivian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.05 Carats Natural Loose Amethyst Ring Gem Brazil Mine
9.05 Carats Natural Loose Amethyst Ring Gem Brazil Mine
Free Shipping
W 0.49 in D 0.29 in L 0.6 in
13.85 Carat Natural Loose Amethyst Gem For Necklace Jewelry
Located in Peshawar, PK
Loose Amethyst Weight: 13.85 Carats Dimension: 18.9 x 11.1 x 9.6 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

13.85 Carat Natural Loose Amethyst Gem For Necklace Jewelry
13.85 Carat Natural Loose Amethyst Gem For Necklace Jewelry
Free Shipping
W 0.44 in D 0.38 in L 0.75 in
65.49 Carat Amethyst Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This luscious royal purple amethyst weighs 65.49 carats and would make a perfectly regal and eye
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Amethyst

65.49 Carat Amethyst Oval, Unset Loose Gemstone
65.49 Carat Amethyst Oval, Unset Loose Gemstone
Free Shipping
W 0.91 in D 0.7 in L 1.15 in
Gem Quality Amethyst Round Cabochon Loose Gemstone for Jewelry
Located in Jaipur, RJ
Weight: 61.90 Carats Size: 8.5 To 22 MM Pieces: 2 Drilled: No
Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Amethyst

8.25 Carat Natural Loose Amethyst Polygon Shape Ring Size Gem
Located in Peshawar, PK
Loose Amethyst Weight: 8.25 Carat Dimension: 15.9 x 11 x 8 Mm Origin: Brazil Treatment: None
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.25 Carat Natural Loose Amethyst Polygon Shape Ring Size Gem
8.25 Carat Natural Loose Amethyst Polygon Shape Ring Size Gem
Free Shipping
W 0.44 in D 0.32 in L 0.63 in
8.00 Carats Natural Loose Amethyst Pair Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Pair Weight: 8.00 Carats Dimension: 10.3 x 10.1 x 6.6 Mm 9.3 x
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

6.95 Carat Natural Loose Amethyst Emerald Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 6.95 Carats Dimension: 13.2 x 8.7 x 8.2 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

6.65 Carat Natural Loose Amethyst Oval Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 6.65 Carats Dimension: 13.3 x 10.7 x 8.3 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

6.65 Carat Natural Loose Amethyst Oval Shape Gem For Necklace
6.65 Carat Natural Loose Amethyst Oval Shape Gem For Necklace
Free Shipping
W 0.43 in D 0.33 in L 0.53 in
18.85 Carat Pretty Dark Purple Loose Amethyst Flower Cut Gem
Located in Peshawar, PK
Loose Amethyst Weight: 18.85 Carats Dimension: 17.6 x 15.6 x 11.4 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

18.85 Carat Pretty Dark Purple Loose Amethyst Flower Cut Gem
18.85 Carat Pretty Dark Purple Loose Amethyst Flower Cut Gem
Free Shipping
W 0.62 in D 0.45 in L 0.7 in
8.30 Carat Natural Loose Amethyst Emerald Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 8.30 Carats Dimension: 18.9 x 8.1 x 7.5 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.95 Carats Natural Loose Amethyst Pixelated Cut Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 9.95 Carats Dimension: 18 x 10 x 7.6 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

13.20 Carat Natural Loose Amethyst February Birthstone Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 13.20 Carats Dimension: 16.6 x 13.4 x 9.8 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Gorgeous 4.60 Carats Natural Loose Deep Purple Amethyst Ring Gem
Located in Peshawar, PK
Loose Amethyst Weight: 4.60 Carats Dimension: 12x9.7x7.2 Mm Origin: Brazil Shape: Oval Color
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.75 Carat Natural Loose Amethyst Octagon Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 8.75 Carats Dimension: 13.6 x 13.6 x 9.2 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Amethyst Ring Gem 18.80 Carat Unset Fancy Oval Brazil Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Exclusive 18.80 carat Brazilian Amethyst fancy cut oval gem, offered loose to a very unique lady or
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Amethyst, Quartz

Amethyst Necklace Ring Gem 83.27 Carat Asscher Cut Brazilian Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Incredible 83.27 carat Brazilian Amethyst square octagon Asscher cut gem, offered loose to an avid
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Amethyst, Quartz

Gem Quality Amethyst Sugarloaf Cabochon Layout Loose Gemstone for Jewelry
Located in Jaipur, RJ
Weight: 586.90 Carats Size: 21x15x12 To 15x11x11 MM Pieces: 26 Drilled: No
Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Amethyst

Natural Purple Loose Amethyst Gemstone 11.05 Carats Fine Jewelry Fine Gems
Located in Bangkok, TH
Natural Purple Loose Amethyst Gemstone, available for sale at wholesale natural high quality
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Amethyst

Exceptional Royal Purple Amethyst Stone 6.80 Carats Loose Gems Ring Jewelry
Located in Bangkok, TH
at 6.80 Carats Eye Clean Clarity Loose Amethyst From Brazil. Product Information: GEMSTONE TYPE
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Amethyst

15.80 Carats Natural Loose Dark Purple Amethyst Gem Dodecagon Fancy Shape
Located in Peshawar, PK
Loose Amethyst Weight: 15.80 Carats Dimension: 18.5x12.9x11.1 Mm Origin: Brazil Mine Shape
Category

21st Century and Contemporary Brazilian Art Nouveau Loose Gemstones

Materials

Amethyst

4 Carat Natural Loose Amethyst Pixel Cut Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 4.00 Carats Dimension: 14.7 x 7.2 x 5.5 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Huge 18.60 Carat Natural Loose Amethyst Flower Cut Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 18.60 Carats Dimension: 16.4 x 15.2 x 12.3 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

10.60 Carat Natural Loose Amethyst Emerald Shape Gem For Necklace Jewellery
Located in Peshawar, PK
Loose Amethyst Weight: 10.60 Carats Dimension: 16.4 x 11.7 x 7.8 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

6.65 Carat Natural Loose Amethyst Round Shape Gem For Ring Jewellery
Located in Peshawar, PK
Loose Amethyst Weight: 6.65 Carats Dimension: 12.1 x 12.1 x 8.8 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.35 Carat Natural Loose Amethyst Trillion Cut Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 8.35 Carats Dimension: 14.6 x 14.6 x 8.5 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.30 Carat Natural Loose Amethyst Emerald Shape Gem For Necklace Jewellery
Located in Peshawar, PK
Loose Amethyst Weight: 9.30 Carats Dimension: 14.8 x 10 x 8.8 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

18.60 Carat Natural Loose Purple Amethyst Flower Cut Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 18.60 Carats Dimension: 17.2 x 15 x 11.8 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

3.35 Carat Natural Loose Amethyst Cushion Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 3.55 Carats Dimension: 10.6 x 8.9 x 6.4 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

3.30 Carat Natural Loose Amethyst Cushion Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 3.30 Carats Dimension: 10.1 x 9.2 x 5.9 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

3.35 Carat Natural Loose Amethyst Emerald Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 3.35 Carats Dimension: 10.2 x 8.6 x 6.1 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

2.50 Carat Natural Loose Amethyst Oval Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 2.50 Carats Dimension: 9.5 x 8.1 x 6 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

3.95 Carat Natural Loose Amethyst Oval Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 3.95 Carats Dimension: 12.5 x 8.4 x 6.5 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

13 Carat Natural Loose Amethyst Emerald Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 13 Carats Dimension: 12.6 x 14.1 x 11.9 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

10.65 Carat Natural Loose Amethyst Tear Drop Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 10.65 Carats Dimension: 20 x 10.9 x 9.1 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

23.55 Carats Gorgeous Purple Loose Amethyst Necklace Gem From Brazil Mine
Located in Peshawar, PK
Faceted Amethyst Weight: 23.55 Carats Dimension: 23x12.6x11.4 Mm Origin: Brazil Color: Purple Shape
Category

21st Century and Contemporary Brazilian Anglo-Indian Loose Gemstones

Materials

Amethyst

Glamorous 5.00 Carats Cushion Shape Loose Purple Amethyst Gem For Ring
Located in Peshawar, PK
Loose Amethyst Weight: 5.00 Carat Dimension: 11.1 x 10.3 x 7.4 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.40 Carat Natural Loose Amethyst Long Emerald Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 9.40 Carats Dimension: 17.2 x 9.3 x 8.2 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

20.25 Carat Natural Loose Amethyst Perfect Square Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 20.25 Carats Dimension: 16.1 x 16.1 x 12.9 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

4.60 Carat Natural Loose Amethyst Octagon Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 4.60 Carats Dimension: 10.6 x 9.1 x 7.6 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

14.20 Carat Natural Loose Amethyst Octagon Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 14.20 Carats Dimension: 18.5 x 11.7 x 9.6 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Gorgeous 6.85 Carat Natural Loose Purple Amethyst Ring Gems Emerald Shape
Located in Peshawar, PK
Faceted amethyst Weight: 6.85 Carats Dimension: 13.2x8.8x8.2 Mm Origin: Brazil Color: Purple
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.90 Carats Stunning Natural Loose Green Amethyst Prasiolite Pixel Cut Gem
Located in Peshawar, PK
Green Shape: Emerald Bar Cut: Pixel Cut / Pixelated Certificate: On Customer Demand Green amethyst
Category

21st Century and Contemporary Brazilian Anglo-Indian Loose Gemstones

Materials

Amethyst

Gorgeous Natural Loose Amethyst Ring Gem From Brazil Mine 10.50 Carat
Located in Peshawar, PK
Gemstone Type : Amethyst Weight : 10.50 Carats Dimensions: 14.6x12.4x9 mm Clarity : Clean Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.80 Carat Together Natural Loose Amethyst Gemstone Cushion Cut Ring Gems
Located in Peshawar, PK
Gemstone Type : Amethyst Weight : 8.80 Carats 1 ( 5.40 Cts, 12x9.3x7.1 Mm) 2( 3.30 Cts, 9.6x8.2x7
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

14.20 Carat Pixel Cut Natural Loose Purple Amethyst Gem from Brazil
Located in Peshawar, PK
Gemstone Type : Amethyst Weight : 14.20 Carats Dimensions : 19.3x11.1x9.1 mm Clarity : Eye Clean
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

14.20 Carat Pixel Cut Natural Loose Purple Amethyst Gem from Brazil
14.20 Carat Pixel Cut Natural Loose Purple Amethyst Gem from Brazil
Free Shipping
H 0.76 in W 0.44 in D 0.36 in L 0.76 in
Amethyst Hexagon Star of David Gem 12.13 Carat Brazil Unmounted Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Unique 12.13 carat hexagon Amethyst gem offered loose to a special lady or gentleman. The cutting
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Amethyst, Quartz

10.75 Carat Natural Loose Octagon Shape Dark Purple Amethyst Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 10.75 Carats Dimension: 14.1 x 13.9 x 10.1 Mm Shape: Octagon Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

AAA Quality 4.25 Carat Natural Loose Amethyst Oval Shape Gem Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 4.25 Carats Dimension: 11.7 x 9.8 x 7 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

5.60 Carats Stunning Loose Purple Amethyst Gem From Brazil Mine February Stone
Located in Peshawar, PK
Faceted Amethyst Weight: 5.60 Carats Dimension: 12.5x9x7.3 Mm Origin: Brazil Shape: Emerald
Category

21st Century and Contemporary Brazilian Art Nouveau Loose Gemstones

Materials

Amethyst

28.60 Carat Natural Loose Amethyst Pair Tear Drop Shape Gem For Earrings
Located in Peshawar, PK
Loose Amethyst Pair Weight: 28.60 Carat Dimension: 25 , 24 x 11.9 x 9 Mm Origin: Brazil Treatment
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Huge 18.20 Carat Natural Loose Amethyst Oval Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Amethyst Weight: 18.20 Carats Dimension: 19.7 x 15.1 x 11 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.75 Carat Natural Loose Dark Purple Amethyst Emerald Shape Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 8.75 Carats Dimension: 15 x 9.8 x 8.5 Mm Colour: Purple Origin: Brazil
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Huge 22.80 Carat Natural Loose Dark Purple Amethyst Long Cushion Gem Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 22.80 Carat Dimension: 18.5 x 16.2 x 13.1 Mm Colour: Dark Purple Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

42.70 Carat Natural Loose Emerald Shape Dark Purple Amethyst Gem For Necklace
Located in Peshawar, PK
Loose Amethyst Weight: 42.70 Carats Dimension: 23 x 17.1 x 14.9 Mm Colour: Dark Purple Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.00 Carat Natural Loose Green Amethyst Rectangular Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Green Amethyst Weight: 8.00 Carats Dimension: 17.2 x 8.8 x 7.1 Mm Colour: Green Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

9.20 Carat Natural Loose Green Amethyst Long Cushion Shape Gem For Necklace
Located in Peshawar, PK
Loose Green Amethyst Weight: 9.20 Carats Dimension: 15.7 x 9.9 x 8.6 Mm Colour: Green Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

8.60 Carat Pretty Loose Green Amethyst Emerald Shape Gem From Earth Mine
Located in Peshawar, PK
Loose Green Amethyst Weight: 8.60 Carats Dimension: 16.4 x 9.5 x 7.7 Mm Colour: Green Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

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Amethyst Loose Gems For Sale on 1stDibs

Browse a vast assortment of amethyst loose gems for sale on 1stDibs. Frequently made of 18k Gold, Gold and Platinum, these items were constructed with great care. Modern and Contemporary are consistently popular styles when it comes to amethyst loose gems. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Sarosi By Timeless Gems, Merkaba and Tamir are consistently popular. Today, if you’re looking for emerald cut amethyst loose gems and are unable to find the perfect match, our selection also includes asscher cut and hexagon cut alternatives. Most of our amethyst loose gems for sale are for men, but there are 12 pieces available to browse for women.

How Much are Amethyst Loose Gems?

Prices for amethyst loose gems start at $65 and top out at $8,100 with these necklaces, on average, selling for $338.

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.