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Certified 1.54 Carat Natural Loose Teal Sapphire Oval Shape Gem From Madagascar
Located in Peshawar, PK
Loose Sapphire Weight: 1.54 Carats Sizes: 7.87 x 6.09 x 3.81 Mm Origin: Madagascar, Africa Shape
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Sapphire, Other

AIG Certified 5.44 Carat Natural Loose Fanta Spessartite Garnet Cushion Cut Gem
Located in Peshawar, PK
Garnet & Spessartine Garnet. Spessartite is synonymous with Spessartine, though in the gem trade the name
Category

21st Century and Contemporary Nigerian Arts and Crafts Loose Gemstones

Materials

Garnet

Certified 2.51 Carat Natural Loose Blue Sapphire Oval Shape Gem From Madagascar
Located in Peshawar, PK
Loose Blue Sapphire Weight: 2.51 Carats Sizes: 9.00 x 6.79 x 4.71 Mm Origin: Madagascar, Africa
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Blue Sapphire, Other

AIG Certified 1.23 Carat Natural Loose Sapphire Oval Shape Gem From Madagascar
Located in Peshawar, PK
Loose Sapphire Weight: 1.23 Carats Sizes: 7.06 x 4.99 x 3.93 Mm Origin: Madagascar, Africa Shape
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Sapphire, Other

AIG Certified 5.67 Carat Natural Loose Fanta Spessartite Garnet Heart Shape Gem
Located in Peshawar, PK
Garnet & Spessartine Garnet. Spessartite is synonymous with Spessartine, though in the gem trade the name
Category

21st Century and Contemporary Mozambican Arts and Crafts Loose Gemstones

Materials

Garnet

4.45 Carat Natural Loose Mint Green Tourmaline Pear Cut Gem From Afghanistan
Located in Peshawar, PK
colors within a single crystal, creating mesmerizing patterns and color combinations. The gem's name is
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Other

3.30 Carat Natural Loose Hot Pink Tourmaline Cushion Cut Gem From Afghanistan
Located in Peshawar, PK
, creating mesmerizing patterns and color combinations. The gem's name is derived from the Singhalese word
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Other

22.30 Carats Gorgeous Natural Loose Yellow Citrine Gem For Jewelry Making
Located in Peshawar, PK
Faceted Citrine Weight: 22.30 Carats Dimension: 18.5x16.1x11.7 Mm Origin: Brazil Color: Yellow Shape: Cushion Treatment: Non Certificate: On Customer Demand Citrine yellow is a ...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

Flawless Imperial Topaz 11.40 carats Emerald Cut Loose Natural Pakistani Gem
Located in Bangkok, TH
Weight 11.40 carats Dimensions 13 x 10.8 x 8.8 mm Treatment None Origin Pakistan Clarity Eye Clean Shape Octagon Cut Emerald Imperial topaz is known for its durability, making...
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Topaz, Imperial Topaz

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

5.00 Carat Natural Loose Madeira Orange Citrine Stone Baguette Cut Brazilian Gem
Located in Bangkok, TH
Shape Cut Baguette This 5.00 Carat Natural Loose Madeira Orange Citrine is a stunning gemstone
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Citrine

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 : Brazil Color: Purple Shape: Emerald Facet: Step Cut Certificate: On Demand Month: F...
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 Mm) Clarity : Clean Origin : Brazil Color: Purple Shape: Cushion Certificate: On Dem...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Gorgeous Mint Green Loose Tourmaline Jewelry Gem 24.20 Carat Asscher Cut
Located in Peshawar, PK
Gemstone Type : Tourmaline Weight : 24.20 Carats Dimensions : 16.9x16.9x12.1 Mm Origin : Kunar Afghanistan Clarity : Eye Clean Shape: Asscher Cut Color: Mintgreen Certificate: On Dem...
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Tourmaline

Included 3.80 Carat Natural Loose Rubelitte Tourmaline Ring Gem Oval Shape
Located in Peshawar, PK
Gemstone Type : Rubellite Tourmaline Weight : 3.80 Carats Dimensions : 12.3x9x4.9 Mm Origin : Afghanistan Clarity : Included Shape: Oval Color: Pink Certificate: On Demand Rubellit...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Rubelite, Tourmaline

11.55 Carat Natural Loose Bi Color Watermelon Tourmaline Cushion Cut Afghan Gem
Located in Bangkok, TH
Shape Cut Cushion Celebrate nature’s artistry with this 11.55 Carat Natural Loose Bi-Color
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

13.10 Carat Natural Loose Bi Color Watermelon Tourmaline Cushion Cut Afghan Gem
Located in Bangkok, TH
Shape Cut Cushion Celebrate the beauty of nature with this 13.10 Carat Natural Loose Bi-Color
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Natural Peach Orange Tourmaline Ring Gem 4.45 Carat Cushion Loose Gemstone
Located in Peshawar, PK
Faceted Tourmaline Weight: 4.45 Carats Dimension: 11.3x8.9x6.7 Mm Origin: Afghanistan Color: Peach Orange Shape: Long Cushion Quality: AAA Certificate: On Demand . Orange tourmaline ...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

7.65 Carat Natural Loose Stunning Blue Topaz Stone Fancy Cut Madagascar s Gem
Located in Bangkok, TH
gemstone-rich lands of Madagascar, this untreated gem offers exceptional clarity and a vibrant, clean tone
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Blue Topaz

Gorgeous Mint Green Loose Tourmaline Ring Gem 5.95 Carat Cushion Gemstone
Located in Peshawar, PK
Gemstone Type : Tourmaline Weight : 5.95 Carats Dimensions : 9.6x9.9x8.2 Mm Origin : Kunar Afghanistan Clarity : Eye Clean Shape: Cushion Color: Mintgreen Certificate: On Demand Basi...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.00 Carat Natural Loose Red Rubellite Tourmaline Stone Cushion Cut Afghan Gem
Located in Bangkok, TH
highlight its deep saturation and sparkle, this gem offers superb clarity and a beautifully balanced shape
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

12.10 Carat Natural Loose Greenish Blue Tourmaline Pair Cushion Cut Afghan Gems
Located in Bangkok, TH
Cushion Presenting a stunning 12.10 Carat Natural Loose Greenish Blue Tourmaline Pair, expertly
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

4.96 Carat Loose Opposite Color Spinel Pair Cushion Cut Natural Tanzanian Gems
Located in Bangkok, TH
of colors—one gem in vivid pink and the other in a rich blue—offering a perfectly balanced harmony of
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Spinel

14.55 Carat Loose Soft London Topaz Custom Precision Cut Natural African Gem
Located in Bangkok, TH
precision cut, it displays exceptional symmetry, brilliance, and depth—highlighting the gem’s natural beauty
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Topaz

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 1.90 carats Eye Clean Clarity Untreated Tourmaline from Africa. Product Informatio...
Category

21st Century and Contemporary Congolese Modern Loose Gemstones

Materials

Tourmaline, Indicolite

21.35 Carat Loose Mint Green Tourmaline Oval – Rare Gem for Collectors Custom
Located in Bangkok, TH
collectors and jewelry designers alike. Expertly crafted in a timeless oval cut, the gem displays a
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

2.55 Carat Loose Light Blue Aquamarine Stone Cushion Cut Natural Pakistani Gem
Located in Bangkok, TH
the scenic gem-rich regions of Pakistan, this untreated Aquamarine is perfect for elegant fine jewelry
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Aquamarine

2.55 Carat Natural Loose Quality Rubelite Tourmaline Pair Cushion Cut Afghan Gem
Located in Bangkok, TH
Weight 2.55 carat Dimensions 7.0x6.1x4.4mm Treatment None Origin Afghan Clarity SI Shape Cut Cushion This exceptional 2.55 carat Rubelite Tourmaline pair showcases vibrant, n...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Rubelite, Tourmaline

3.00 Carat Natural Loose Unique Color Tourmaline Pair Asscher Cut African Gems
Located in Bangkok, TH
Weight 3.00 carat Dimensions 6.3x6.3x5.3mm Treatment None Origin Africa Clarity VVS Shape Cut Asscher This exquisite 3.00 carat tourmaline pair showcases a rare and unique c...
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Tourmaline

9.20 Carat Natural Loose Bi Color Watermelon Tourmaline Emerald Cut Afghan Gem
Located in Bangkok, TH
Weight 9.20 carat Dimensions 14.8x9.7x7.4mm Treatment None Origin Afghan Clarity SI Shape Cut Emerald This striking 9.20 carat natural Bi Color Watermelon Tourmaline showcas...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

5.30 Carat Loose Mismatch Color Tourmaline Pair Cushion Cut Natural Afghan Gems
Located in Bangkok, TH
gemstone-rich mountains of Afghanistan, these untreated gems offer a striking visual balance perfect for
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.20 Carat Loose Bluish Green Tourmaline Pair Cushion Cut Natural Afghan Gems
Located in Bangkok, TH
gemstone-rich mountains of Afghanistan, these gems offer excellent clarity and a harmonious color balance
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

19.45 Carat Loose Frosted Golden Citrine Stone Custom Cut Natural Brazilian Gem
Located in Bangkok, TH
, radiant color, and distinctive cut, this gem is a luxurious addition to any fine collection—ideal for
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Citrine

4.60 Carat Loose Vivid Green Peridot Stone Emerald Cut Natural Pakistani Gem
Located in Bangkok, TH
the rich gem-bearing regions of Pakistan, this untreated stone offers both beauty and authenticity
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Peridot

3.03 carats GGI Certified Loose Greenish Blue Sapphire Oval Cut Madagascar s Gem
Located in Bangkok, TH
Oval Cut Faceted NA This exquisite 3.03-carat Greenish Blue Sapphire hails from the renowned gem-rich
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Blue Sapphire

4.65 Carat Natural Loose Madeira Citrine Pair Hexagon Shape Gem For Earrings
Located in Peshawar, PK
Loose Madeira Citrine Pair Weight: 4.65 Carats Sizes: 2.30 And 2.25 Carat Dimension: 8.1 x 8.1 x
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

1.95 Carat Natural Loose Rhodolite Garnet Emerald Shape Gem From African Mine
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 1.95 Carats Dimension: 8.4 x 5.5 x 4 Mm Colour: Red Origin: Africa
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Garnet, Rhodolite

1.85 Carat Natural Loose Apple Green Peridot Trillion Shape Gem For Ring
Located in Peshawar, PK
Loose Peridot Weight: 1.85 Carats Dimension: 8.4 x 8.3 x 5.1 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

Stunning 7.60 Carats Natural Loose Peridot Cushion Shape Gem For Women’s Ring
Located in Peshawar, PK
Loose Peridot Weight: 7.60 Carats Dimension: 13.1 x 9.5 x 7.4 Mm Colour: Green Origin: Supat
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.85 Carat Natural Apple Green Loose Peridot Emerald Shape Gem From Pakistan
Located in Peshawar, PK
Loose Peridot Weight: 2.85 Carats Dimension: 9 x 7.2 x 5.7 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.45 Carat Natural Loose Rhodolite Garnet Square Shape Gem From African Mine
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.45 Carats Dimension: 7.5 x 7.3 x 4.2 Mm Colour: Red Origin: Africa
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Garnet, Rhodolite

2.35 Carat Natural Loose Apple Green Peridot Cushion Shape Gem From Pakistan
Located in Peshawar, PK
Loose Peridot Weight: 2.35 Carats Dimension: 8.9 x 7.5 x 4.7 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

24.20 Carat Natural Loose Dual Lemon Quartz Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Dual Lemon Quartz Weight: 24.20 Carats Dimension: 14.7 x 12.6 x 10.3 Mm And
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Quartz

7.80 Carat Natural Loose Apple Green Peridot Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Peridot Weight: 7.80 Carats Dimension: 12.6 x 11.5 x 7.3 Mm Colour: Green Origin: Supat
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

3.85 Carat Splendid Natural Loose Rutile Peridot Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Rutile Peridot Weight: 3.85 Carats Dimension: 10.7 x 8 x 5.8 Mm Colour: Green Origin: Supat
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.80 Carat Natural Loose Apple Green Peridot Oval Shape Gem For Jewellery
Located in Peshawar, PK
Loose Peridot Weight: 2.80 Carats Dimension: 10.5 x 7.1 x 4.6 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.45 Carat Natural Loose Apple Green Peridot Cushion Shape Gem From Pakistan
Located in Peshawar, PK
Loose Peridot Weight: 2.45 Carats Dimension: 8.5 x 7.3 x 5.1 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.35 Carat Natural Loose Rhodolite Garnet Emerald Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.35 Carats Dimension: 8.5 x 5.9 x 4.3 Mm Origin: Central African
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Rhodolite, Garnet

1.55 Carats Natural Loose Fancy Cut Red Rhodolite Garnet Gem For Ring
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 1.55 Carats Dimension: 11.1 x 8.1 x 3.5 Mm Origin: Central African
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Rhodolite

3.35 Carat Natural Loose Apple Green Peridot Square Shape Gem For Jewellery
Located in Peshawar, PK
Loose Peridot Weight: 3.35 Carats Dimension: 8.3 x 7.8 x 6.6 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

1.05 Carats Adorable Natural Loose Emerald Shape Rhodolite Garnet Gem For Ring
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 1.05 Carats Dimension: 5.8 x 4.6 x 3.7 Mm Origin: Central African
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Rhodolite

World Rarest 0.55 Carats Natural Loose Blue Haüyne / Haüynite Colour Change Gem
Located in Peshawar, PK
Loose Hauyne / Hauynite Weight: 0.55 Carats Dimension: 5.7 x 4.9 x 3.2 Mm Origin: Badakhshan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Other

2.45 Carats Natural Loose Emerald Shape Apple Green Peridot Gem For Ring
Located in Peshawar, PK
Loose Peridot Weight: 2.45 Carats Dimension: 9.7 x 5.6 x 5.4 Mm Colour: Green Origin: Supat
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

2.40 Carat Natural Apple Green Loose Peridot Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Peridot Weight: 2.40 Carats Dimension: 7.7 x 7.1 x 5.3 Mm Colour: Green Origin: Supat Valley
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

3.55 Carat Natural Loose Cushion Shape Mint Tourmaline Gem For Jewellery Making
Located in Peshawar, PK
Loose Mint Tourmaline Weight: 3.55 Carats Dimension: 8.4 x 8.1 x 6.6 Mm Colour : Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.05 Carat Natural Loose Dual Peridot Hexagon Shape Gem For Earrings Jewellery
Located in Peshawar, PK
Loose Peridot Weight: 3.05 Carats Dimension: 7.2 x 6.5 x 5.2 Mm And 7.4 x
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

1.55 Carats Natural Loose Red Spinel Long Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Red Spinel Weight: 1.55 Carats Dimension: 7.4 x 5.2 x 5.1 Mm Origin: Burma Shape: Long
Category

21st Century and Contemporary Burmese Arts and Crafts Loose Gemstones

Materials

Spinel

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Loose Gems For Sale on 1stDibs

Browse a vast assortment of loose gems for sale on 1stDibs. These distinct designs — crafted with great care and often made from 18k Gold, Gold and Platinum — can elevate any look. Our collection of these items for sale includes 3 vintage editions and 324 modern creations to choose from as well. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 21st Century. Our collection of loose gems includes designs that are universally popular, but Contemporary and Modern styles, specifically, are sought with frequency. Merkaba, Sarosi By Timeless Gems and Tamir each produced beautiful examples of these items that are worth considering. Browse our collection of 87 Tourmaline versions today to add the perfect touch to your look. A selection of oval cut, cushion cut and emerald cut can be found today on these pages. When shopping our range of loose gems, you’ll find that there are less available pieces for men today than there are for women.

How Much are Loose Gems?

Prices for loose gems start at $65 and top out at $325,000 with these rings, on average, selling for $5,721.

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.