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2 Carat Loose Gem Stones

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Spinel Palette 7.20 Carats Round 5mm Loose Gems Set
Located in US
Spinel Palette 7.20 Carats Round Loose Gems Set Multi-color palette natural spinel set( 15 stone
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Spinel

3.50 Carats Natural Loose Spessartine Garnet Ring Gem January Birthstone
Located in Peshawar, PK
intensity of the color can vary, and some stones may exhibit exceptional saturation. 2. **Origin
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Mandarin Garnet

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

2.70 Carats Pink Tourmaline, Top Quality Tourmaline Jewelry Cut Stones Gems
Located in Jaipur, RJ
2.70 carats multi tourmaline , top quality tourmaline jewelry cut , natural tourmaline gemstone 2
Category

21st Century and Contemporary Brazilian Art Deco Loose Gemstones

Materials

Tourmaline

33.08 Carats Multi Tourmaline Princess Cut Stones Natural Gems for Fine Jewelry
Located in Jaipur, RJ
33.08 Carats Multi Tourmaline Princess Cut Stone Natural Gem For Top Fine Jewelry Gemstone: Multi
Category

21st Century and Contemporary Afghan Art Deco Loose Gemstones

Materials

Tourmaline

21.76 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 21.76 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 21.76
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

17.86 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 17.86 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 17.86
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

21.89 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 21.89 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 21.89
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

19.98 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 19.98 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 19.98
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

19.88 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 19.88 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 19.88
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

18.64 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 18.64 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 18.64
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

14.28 Carats Pink Kunzite Octagon Natural Cut Stones For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry 14.28 Carats Pink Kunzite Natural Cut Stones For Fine Gem Jewellery Weight: 14.28
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

2.60 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Located in Jaipur, RJ
2.60 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem Weight: 2.60 Carats
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

8.25 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Located in Jaipur, RJ
8.25 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem Weight: 8.25 Carats
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

5.95 Carats Natural Loose Hessonite Garnet 2 Pieces For Ring Jewelry Making
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 5.95 Carats Dimension: 2.0 & 3.90 Carats Origin: Africa Shape
Category

21st Century and Contemporary Malagasy Anglo-Indian Loose Gemstones

Materials

Garnet, Hessonite

51.22 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry. 51.22 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

53.60 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry. 53.60 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

35.58 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Located in Jaipur, RJ
eye-catching jewelry. 35.58 Carats Pink Kunzite Octagon Pair Natural Cut Stone For Fine Gem Jewellery
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Kunzite

1.58Ct Natural Loose Emerald Pear Shape 2 Pcs
Located in רמת גן, IL
Title: Exquisite 1.58ct Loose Pear Shape Emerald Gemstone Product Description: Delight in the
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.58Ct Natural Loose Emerald Pear Shape 2 Pcs
1.58Ct Natural Loose Emerald Pear Shape 2 Pcs
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W 0.22 in D 0.14 in L 0.35 in
1.36Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
experience the stone's luminosity in its full splendor. Canvas of Creativity: Being a loose gemstone, it is
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.36Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
1.36Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
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W 0.18 in D 0.1 in L 0.42 in
1.40Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
experience the stone's luminosity in its full splendor. Canvas of Creativity: Being a loose gemstone, it is
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.40Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
1.40Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
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W 0.18 in D 0.13 in L 0.36 in
1.78Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Located in רמת גן, IL
experience the stone's luminosity in its full splendor. Canvas of Creativity: Being a loose gemstone, it is
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.78Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
1.78Ct Natural Loose Emerald Marqiuse Shape 2 Pcs
Free Shipping
W 0.21 in D 0.13 in L 0.4 in
1.67Ct Natural Loose Emerald Pear Shape 2 Pcs
Located in רמת גן, IL
nature's splendor and the artistry of gem crafting. This stone, with its storied past and undeniable beauty
Category

2010s Colombian Modern Loose Gemstones

Materials

Emerald

1.67Ct Natural Loose Emerald Pear Shape 2 Pcs
1.67Ct Natural Loose Emerald Pear Shape 2 Pcs
Free Shipping
W 0.21 in D 0.16 in L 0.33 in
Exquisite Jadeite Loose Stones from Exclusive Burmese Mining Routes
Located in 渋谷区, JP
is free but it is just for the image of the loose on the ring - Height: 1.6 cm - Diameter: 1.3 cm
Category

2010s Burmese Loose Gemstones

Materials

Jade

Green Peridot Cushion Cut Natural Loose Gemstones, 4.90 Carat from Pakistan
Located in Peshawar, PK
character to each stone. With its ideal clarity, these gems are perfect for elevating any jewelry setting
Category

21st Century and Contemporary Pakistani Contemporary Loose Gemstones

Materials

Peridot

Green Peridot Cushion Cut Natural Loose Gemstones, 4.90 Carat from Pakistan
Green Peridot Cushion Cut Natural Loose Gemstones, 4.90 Carat from Pakistan
Free Shipping
H 0.34 in W 0.31 in D 0.21 in Dm 0.3 in L 0.32 in
20.71 carats Zambian Emerald Shield Pair cabochon for fine Jewelry Natural Gems
Located in Jaipur, RJ
20.71 carats Zambian Emerald Shield Pair cabochon stone for fine Jewelry Natural Gem Weight: 20.71
Category

21st Century and Contemporary Zambian Art Deco Loose Gemstones

Materials

Emerald

2.40 Carat Gorgeous Fire Loose Sphene Gemstone From Pakistan Mine Oval Shape
Located in Peshawar, PK
it a popular choice for gem enthusiasts and collectors. 2. **Metaphysical Beliefs**: In the realm of
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Alexandrite, Hematite

Purple and Yellow Ceylon Sapphires 3.66 Carat Three Stone
By Emeralds Maravellous
Located in US
Three stone sapphires with a center high-quality cushion cut purple Ceylon sapphire 1.48 carats and
Category

21st Century and Contemporary American Artisan Loose Gemstones

Materials

Sapphire

6.50 Carats Faceted Natural Ametrine Ring Gem Emerald Shape From Brazil Mine
Located in Peshawar, PK
Loose Ametrine Weight: 6.50 Carats Dimension: 14.3x9.2x7.1 Mm Origin: Brazil Color: Purple
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst, Citrine

5.55 Carat Natural Faceted Natural Citrine Fancy Hexagon Shape Brazil Mine Gem
Located in Peshawar, PK
Faceted Citrine Weight: 5.55 Carats Dimension: 14.5x11x8.3 Mm Origin: Brazil Shape: Hexagon Cut
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

2 Carat Pear Pinkish Orange Padparadsha Sapphire Lotus Certified Madagascar
Located in Toronto, Ontario
loose stone Weight: 2 carats Measurements: 9.14 x 6.07 x 4.83 mm Comments: Internal notes and
Category

2010s Malagasy Loose Gemstones

Materials

Sapphire

2 Tourmalines Matching Pair Cts 18.77
Located in Hong Kong, HK
As these two stunning 18.77 carat tourmaline gems come into view, prepare to be mesmerized by their
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Tourmaline

2 Round Mandarin Garnet Gemstones Cts 3.28
Located in Hong Kong, HK
impression. With one gem weighing 1.63 carats and measuring 6.81 x 6.78 x 4.51 mm, and the other weighing
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Mandarin Garnet, Garnet

No Heat 2 Oval Blue Sapphires 4.37cts
Located in Hong Kong, HK
Take a trip through luxury with these magnificent oval faceted blue sapphires, weighing 4.37 carats
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire

2 Natural Round Diamond-Cut Blue Sapphires Cts 1.21
Located in Hong Kong, HK
These gems have a total weight of 1.21 carats and a stunning brilliance that captivates the senses
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire, Diamond

No Heat 2 Indian Pear-Shaped Buff Rubies Cts 20.22
Located in Hong Kong, HK
20.22 carats, measuring 15.24 x 11.09 x 5.92 mm and 15.67 x 11.06 x 6.17 mm. These exquisite gems
Category

2010s Asian Contemporary Loose Gemstones

Materials

Ruby

2 Burmese Pigeon’s Blood Rubies Cts 2.22 With GRS Certificate
Located in Hong Kong, HK
Burmese Pigeon’s Blood Rubies are a mesmerizing duo totaling 2.22 carats. One is a 1.00-carat oval gem
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Ruby

2 Pink Princess-Cut Perfectly Match Spinels Pair 2.18 Cts
Located in Hong Kong, HK
Get ready to be mesmerized by these exquisite gems' unmatched beauty. With a total carat weight
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Spinel

0.79 Carat Natural Fancy Pink Sapphire
Located in Hua Hin, TH
Grade: VS Clarity Type: Type 2 Gem Type: Corundum Gem Variety: Sapphire Treatments: None Gemologists
Category

2010s Kenyan Loose Gemstones

Materials

Pink Sapphire

0.79 Carat Natural Fancy Pink Sapphire
0.79 Carat Natural Fancy Pink Sapphire
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W 0.22 in D 0.14 in L 0.18 in
2 Grayish Pink Spinel Cts 2.73 Perfect Matching Pair Unheated
Located in Hong Kong, HK
greyish-pink tones. The combined weight of these stunning two grayish pink spinel gems is 2.73 carats
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Spinel

5 carat Unheated Pigeon Blood Ruby
Located in London, GB
and shines even in low lighting. This stone is accompanied by 2 gemmological reports. One from the
Category

2010s Mozambican Loose Gemstones

Materials

Ruby

5 carat Unheated Pigeon Blood Ruby
5 carat Unheated Pigeon Blood Ruby
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W 0.34 in D 0.24 in L 0.43 in
2.43ct Octagonal/Emerald Cut Green Two (2) Emeralds GIA Certified Colombia (F2)
Located in Toronto, Ontario
) Emeralds Geographic Origin: Colombia Treatment: Clarity Enhanced (F2). Item Description: Two (2) loose
Category

2010s Colombian Loose Gemstones

Materials

Emerald

6.34 Carat Pair Pear Pink/Green Tourmaline from Brazil
Located in Toronto, Ontario
Description: Gem Type: Tourmaline Number of Stones: 2 Weight: 6.34 cts 3.06/3.27 Measurements
Category

2010s Brazilian Loose Gemstones

Materials

Tourmaline

6.34 Carat Pair Pear Pink/Green Tourmaline from Brazil
6.34 Carat Pair Pear Pink/Green Tourmaline from Brazil
Free Shipping
W 0.5 in D 0.23 in L 0.37 in
Royal Blue and Vivid Pink Ceylon Sapphires 2.90 Carat
By Emeralds Maravellous
Located in US
with superb brilliance. **These incredible gemstones are available to purchase as loose stones or made
Category

21st Century and Contemporary American Contemporary Loose Gemstones

Materials

Blue Sapphire, Pink Sapphire, Sapphire

6.31 Carat Pair Scissor Cut/Octagonal Green Tourmaline from Brazil
Located in Toronto, Ontario
Description: Gem Type: Tourmaline Number of Stones: 2 Weight: 6.31 cts 3.18/3.13 Measurements
Category

2010s Brazilian Loose Gemstones

Materials

Tourmaline

1.58 Carat Oval Icy Light Blue Sapphire GIA Certified Sri Lanka Unheated
Located in Toronto, Ontario
loose stone Weight: 1.58 carats Measurements: 8.59 x 6.55 x 3.59 mm Comments: Internal notes and
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire, Blue Sapphire

GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire Weighing 17.16 carat
By OGI Ltd
Located in New York, NY
exquisite GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire, a true gem of exceptional beauty and
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

19.34ct Oval White Opal GIA Certified Ethiopia
Located in Toronto, Ontario
: Item Description: One loose stone Weight: 19.34 carats Measurements: 24.49 x 14.91 x 10.53 mm Comments
Category

2010s Ethiopian Loose Gemstones

Materials

Opal

19.34ct Oval White Opal GIA Certified Ethiopia
19.34ct Oval White Opal GIA Certified Ethiopia
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W 0.97 in D 0.42 in L 0.59 in
24.28ct Pear White Opal GIA Certified Ethiopia
Located in Toronto, Ontario
: Treatment: Item Description: One loose stone Weight: 24.28 carats Measurements: 25.84 x 23.90 x 8.90 mm
Category

2010s Ethiopian Loose Gemstones

Materials

Opal

24.28ct Pear White Opal GIA Certified Ethiopia
24.28ct Pear White Opal GIA Certified Ethiopia
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W 1.02 in D 0.36 in L 0.95 in
5.21ct Cushion Purple-Pink Spinel GIA Certified Unheated
Located in Toronto, Ontario
: Geographic Origin: Treatment: No Indications of Heating Item Description: One loose stone Weight: 5.21
Category

2010s Loose Gemstones

Materials

Spinel

5.21ct Cushion Purple-Pink Spinel GIA Certified  Unheated
5.21ct Cushion Purple-Pink Spinel GIA Certified  Unheated
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W 0.47 in D 0.27 in L 0.35 in
2ct Pear Pinkish Orange Padparadsha Sapphire Lotus Certified Madagascar
Located in Toronto, Ontario
: Madagascar Treatment: No Indications of Heating Item Description: One loose stone Weight: 2 carats
Category

2010s Malagasy Loose Gemstones

Materials

Sapphire

2ct Pigeons Blood Burmese Ruby - Unheated
Located in London, GB
grow their collection of fine and unique gems. Weighing 2 carats, this stone can appeal to a wide
Category

2010s Burmese Loose Gemstones

Materials

Ruby

2ct Pigeons Blood Burmese Ruby - Unheated
2ct Pigeons Blood Burmese Ruby - Unheated
Free Shipping
W 0.24 in D 0.2 in L 0.3 in
3.04ct Oval Greenish Blue Teal Sapphire GIA Certified Tanzania Unheated
Located in Toronto, Ontario
Geographic Origin: Tanzania Treatment: No Indications of Heating Item Description: One loose stone Weight
Category

2010s Tanzanian Loose Gemstones

Materials

Sapphire

1.72 ct Oval Star Sapphire
Located in Toronto, Ontario
Description: Item Description: One Loose Stone Weight: 1.72 cts Measurements: 6.86x6.03x4.03 mm
Category

2010s Burmese Loose Gemstones

Materials

Star Sapphire

1.72 ct Oval Star Sapphire
1.72 ct Oval Star Sapphire
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W 0.28 in D 0.16 in L 0.24 in
5ct Unheated Mozambican 'Pigeons Blood' Ruby
Located in London, GB
. With a carat weight of above 5 carat, it is a rare find in natural stones to have a large sized gem
Category

2010s Mozambican Loose Gemstones

Materials

Ruby

47.38 ct Round Star Sapphire
Located in Toronto, Ontario
Description: Item Description: One Loose Stone Weight: 47.38 cts Measurements
Category

2010s Loose Gemstones

Materials

Star Sapphire

47.38 ct Round Star Sapphire
47.38 ct Round Star Sapphire
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W 0.89 in D 0.35 in L 0.88 in
1.53ct Cushion Double Cabochon Purplish Red Ruby GIA Certified Mozambique Unheat
Located in Toronto, Ontario
Geographic Origin: Mozambique Treatment: No Indications of Heating Item Description: One loose stone Weight
Category

2010s Mozambican Loose Gemstones

Materials

Ruby

11.11ct Emerald Cut Orange Pink Morganite from Brazil
Located in Toronto, Ontario
Description: Gem Type: Morganite Number of Stones: 2 Weight: 11.11 cts Measurements: 12.00 x
Category

2010s Brazilian Loose Gemstones

Materials

Morganite

11.11ct Emerald Cut Orange Pink Morganite from Brazil
11.11ct Emerald Cut Orange Pink Morganite from Brazil
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W 0.48 in D 0.24 in L 0.4 in
3.08ct Oval Cabochon Green Trapiche Emerald from Muzo Mine, Colombia Pair
Located in Toronto, Ontario
Description: Gem Type: Trapiche Emerald Number of Stones: 2 Weight: 3.08 cts Measurements: 7.98 x
Category

2010s Colombian Loose Gemstones

Materials

Emerald

11.32ct Emerald Cut Aquamarine
Located in Toronto, Ontario
Description: Gem Type: Aquamarine Number of Stones: 1 Weight: 11.32 cts Measurements: 14.99 x
Category

2010s Brazilian Loose Gemstones

Materials

Aquamarine

11.32ct Emerald Cut Aquamarine
11.32ct Emerald Cut Aquamarine
Free Shipping
W 0.6 in D 0.36 in L 0.48 in
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2 Carat Loose Gem Stones For Sale on 1stDibs

Browse a vast assortment of 2 carat loose gem stones for sale on 1stDibs. Frequently made of gold, yellow gold and 18k gold, these items were constructed with great care. Find a collection of 5 vintage versions or 243 modern creations for a more contemporary example of these cherished accessories. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. The designs in our inventory of 2 carat loose gem stones bearing contemporary or modern hallmarks are very popular. There have been many well-made iterations of these items over the years, but those made by AB Jewelry NYC, Emeralds Maravellous and Merkaba are often thought to be among the most beautiful. Any of these pieces can lend versatility to your look, but sapphire versions, from our inventory of 61, are particularly popular. There are many brilliant cut, emerald cut and oval cut 2 carat loose gem stones for sale. If you’re browsing the variety of 2 carat loose gem stones for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are 2 Carat Loose Gem Stones?

On average, 2 carat loose gem stones at 1stDibs sell for $690, while they’re typically $80 on the low end and $185,000 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.