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Loose Gemstones For Sale
3.16 Ct Blue Sapphire Octagon Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.62 Ct Blue Sapphire Octagon Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.08 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.58 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

0.89 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.70 Carat Natural Loose Emerald Square Shape Gem From Swat Mine, Pakistan
Located in Peshawar, PK
Loose Emerald Weight: 2.70 Carats Dimensions: 8.1 x 8 x 5.6 Mm Origin: Swat Pakistan Shape: Square Color: Green Treatment: Non Certificate: On Demand The Swat Emerald, also known a...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Emerald

4.06ct Rectangular Cushion Purple Spinel from Burma
Located in Toronto, Ontario
Description: Gem Type: Spinel Number of Stones: 1 Weight: 4.06 cts Measurements: 9.85 x 9.27 x 5.29 mm Shape: Rectangular Cushion Cutting Style Crown: Brilliant Cut Cutting Style P...
Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.16 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

GIA Certified 1.98 Carat Spinel
Located in Brooklyn, NY
This pretty Grayish Purple spinel Cushion cut , weighs 1.98 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures ...
Category

2010s Loose Gemstones

Materials

Spinel

Natural Sky Blue Swiss Topaz 19.55Ct Cushion Cut Loose Gemstone for Ring-Pendant
Located in Peshawar, PK
Exquisite Sky Blue Natural Swiss Topaz Loose Gemstone for Necklace Pendant, Bracelet or any other Jewelry Setting-Cushion Cut from Brazil!! 💎 GEMSTONE TYPE: Swiss Blue Topaz ⚖️ WEI...
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Topaz, Blue Topaz

36.53 Carat Octagonal/Emerald Cut Purple Yellow Ametrine GIA Certified
Located in Toronto, Ontario
This is a stunning GIA Certified Ametrine The GIA report reads as follows: GIA Report Number: 2223290610 Shape: Octagonal Cutting Style: Step Cut Cutting Style: Crown: Cuttin...
Category

2010s Bolivian Loose Gemstones

Materials

Amethyst, Citrine

2.15 Carat Natural Loose Light Pink Tourmaline Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Light Pink Tourmaline Weight: 2.15 Carats Dimension: 7.6 x 6.9 x 5.5 Mm Colour: Light Pink Origin: Afghanistan Certificate: On Demand Treatment: Non Shape: Cushion Tourmal...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.90 Carat Natural Loose Bright Red Garnet Stone Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 3.90 carat Dimensions 9.5x7.5x5.4mm Treatment None Origin Tanzanian Clarity VVS Shape Cut Cushion This stunning 3.90 carat bright red garnet captures attention with i...
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

Magnificent 6.97ct Alexandrite Gemstone - GIA Certified
Located in רמת גן, IL
This stunning 6.97-carat Alexandrite is a gemstone of rare beauty, showcasing an extraordinary color shift from yellowish green in daylight to purplish brown under incandescent light...
Category

2010s Israeli Loose Gemstones

Materials

Alexandrite

Emerald Shape Stunning 13.10 Carats SI Quality Natural Loose Lagoon Tourmaline
Located in Peshawar, PK
Loose Lagoon Tourmaline Weight: 13.10 Carats Dimension: 14.4 x 11.1 x 8.9 Mm Origin: Afghanistan Colour: Greenish Blue Shape: Emerald Treatment: Non Certificate: On Demand La...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

GIA Certified 1.02 Carat Fancy Dark Brown Greenish Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2476039958 Shape And Cut: Asscher Carat Weight: 1.02 carat Measurements: 5.55 x 5.54 x 3.69 mm Color Grade: Fancy Dark Brown Greenish Yellow This fan...
Category

2010s Asian Loose Gemstones

Materials

Diamond

1.98 Carats Zambian Emerald pair faceted stone for fine Jewelry Natural Gemstone
Located in Jaipur, RJ
1.98 carats Zambian Emerald Oval pair Cut stone for fine Jewelry Natural Gemstone Weight: 1.98 Carats Size: 7x5 MM Pieces: 2 Shape: Oval
Category

21st Century and Contemporary Zambian Art Deco Loose Gemstones

Materials

Emerald

5.00 Carat Natural Loose Greenish Amethyst Stone Emerald Cut African Gemstone
Located in Bangkok, TH
Weight 5.00 carat Dimensions 15.4x8.0x5.8mm Treatment None Origin Africa Clarity Loup Clean Shape Cut Emerald This beautiful 5.00 carat greenish amethyst from Africa feature...
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Amethyst

Gorgeous 3.05 Carats Natural Loose Green Emerald Swat Pakistan Mine Ring Gem
Located in Peshawar, PK
Loose Emerald Weight: 3.05 Carats Dimensions: 10.5x6.2x5.9 Mm Origin: Swat Pakistan Shape: Emerald Color: Green Treatment: Non Certificate: On Demand The Swat Emerald...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Emerald

3.99 Ct Pink Sapphire Radiant Loose Gemstone
Located in Fort Lee, NJ
This natural pink sapphire offers elegance and sophistication. With its rich colour saturation and precise cutting, it is the perfect centrepiece for an engagement ring or luxury jew...
Category

2010s Sri Lankan Loose Gemstones

Materials

Pink Sapphire

Colombian Emerald 2.65ct
Located in Genève, CH
A Colombian Emerald certified by GRS (minor) of 2.65 ct. Our jewellers in Geneva can make this stone into a beautiful creation.
Category

2010s Colombian Loose Gemstones

Materials

Emerald

10.60 Carat Natural Loose Swiss Blue Topaz Stone Emerald Cut African Gemstone
Located in Bangkok, TH
Weight 10.60 carat Dimensions 12.3x10.2x9mm Treatment None Origin Africa Clarity VVS Shape Cut Emerald NA This exquisite 10.60 carat natural Swiss Blue Topaz displays a vibrant,...
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Blue Topaz

3.72 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy Loose Gemstones

Materials

Ruby

40.70 Carat Natural Loose Amethyst Square Shape Gemstone
Located in Peshawar, PK
Stone: Amethyst Weight : 40.70 Carats Dimension: 20 x 20 x 15.8 Mm Origin: Brazil Shape: Square Cushion Color: Purple Treatment: Non Certificate: On Customer Demand Amethyst, a st...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

2.30 Carat Natural Loose Iolite Emerald Shape Gem For Jewellery Making
Located in Peshawar, PK
Loose iolite Weight: 2.30 Carats Dimension: 10.2 x 6.8 x 5.3 Mm Origin: India Certificate: On Demand Treatment: Non Shape: Emerald Iolite, also known as "water sapphire" or "...
Category

21st Century and Contemporary Indian Arts and Crafts Loose Gemstones

Materials

Iolite

4.20 Carat Natural Loose Ametrine Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Ametrine Weight: 4.20 Carats Dimension: 8.9 x 8.6 x 7.5 Mm Shape: Cushion Color: Purple & Yellow Treatment: Non Certificate: On Client Demand . Ametrine is a unique and str...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst, Citrine

2.60 Carat Natural Loose Rare Hackmanite Lot For Jewellery Making
Located in Peshawar, PK
Loose Hackmanite Weight: 1.40 Carats Sizes: 0.65 , 0.70 and 0.95 Colour: Purple Shape: Mix Shape Treatment: Non Origin: Afghanistan Hackmanite is a unique and rare variety of the ...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Other

6.25 Carat Red Orange Zircon Pear, Unset Loose Gemstone
Located in Los Angeles, CA
This lovely pear shaped zircon is perfectly shaped and has a strong, reddish orange color. Zircon is more commonly recognized for its bright blue shades, but this December birthstone...
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Zircon

1.10 Carat Natural Loose Lagoon Tourmaline Stone Emerald Cut Afghan Gemstone
Located in Bangkok, TH
Weight 1.10 carat Dimensions 7.2x5.1x4.1mm Treatment None Origin Afghan Clarity SI Shape Cut Emerald This 1.10 Carat Natural Loose Lagoon Tourmaline Stone displays a mesmeri...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

14.50 Carat Natural Loose Greenish Blue Tourmaline Cushion Cut Afghan Gemstone
Located in Bangkok, TH
Weight 14.50 carat Dimensions 16.7x12.3x8.6mm Treatment None Origin Afghan Clarity Loup Clean Shape Cut Cushion Presenting a breathtaking 14.50 Carat Natural Loose Greenish ...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

13.36 Carat Oval Tanzanite Loose Gemstone, 17.80 x 12.60 mm, Merkaba Jewelry
Located in Beverly Hills, CA
A vivid 13.36 carat oval tanzanite loose gemstone, offered unmounted and brand new by Merkaba Jewelry Beverly Hills. Displaying a saturated blue to violet presence with excellent dep...
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Tanzanite, Multi-gemstone, 18k Gold, Rose Gold, White Gold, Yellow Gold,...

5.93 Ct Blue Sapphire Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

1.85 Carat Natural Loose Maroon Pink Spinel Gemstone From Myanmar
Located in Peshawar, PK
Faceted Maroon Pink Spinel Weight : 1.85 Carat Dimension: 7.4 x 6.9 x 4.2 Mm Treatment: Non Shape : Cushion Colour: Maroon Pink Spinel is a captivating gemstone prized for its bri...
Category

21st Century and Contemporary Burmese Arts and Crafts Loose Gemstones

Materials

Spinel

1.85 Carat Natural Loose Green Tourmaline Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Green Tourmaline Weight: 1.85 Carat Dimension: 7.3 x 5.5 x 4.7 Mm Colour: Green Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmaline is a captivat...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.10 Carat Natural Loose Green Amethyst Pear Shape Gemstone
Located in Peshawar, PK
Loose Green Amethyst Weight: 3.10 Carats Dimension: 12.1 x 8.2 x 6.9 Mm Colour: Light Green Origin: Brazil Treatment: Non Certificate: On Demand Shape: Pear Amethyst, a stunning v...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

0.95 Carat Natural Loose Pink Tourmaline Fancy Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Pink Tourmaline Weight: 0.95 Carats Dimension: 5.9 x 5 x 4.1 Mm Origin: Kunar, Afghanistan Treatment: Non Certificate: On Demand Shape: Emerald Tourmaline, a gemstone celebra...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Natural Green Colombian Emerald Stone 1.86 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
Colombian gems are renowned for their vibrant bluish-green hue, epitomized by this 1.86-carat pear-shaped emerald. GIA-certified, this gem has been meticulously fashioned, displaying...
Category

21st Century and Contemporary Colombian Loose Gemstones

Materials

Emerald

2.30 Carat Loose Light Blue Aquamarine Stone Cushion Cut Natural Pakistani Gem
Located in Bangkok, TH
Weight 2.30 carat Dimensions 9.1x7.3x5.5mm Treatment None Origin Pakistan Clarity VVS Shape Cushion Cut Fancy Cushion NA This beautiful 2.30 carat loose Light Blue Aquamarine is a...
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Aquamarine

2.95 Carat Natural Loose Seafoam Tourmaline Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Seafoam Tourmaline Weight: 2.95 Carat Dimension: 10.2 x 7 x 5.1 Mm Colour: Seafoam Treatment: Non Certificate: On Customer Demand Shape: Emerald Tourmaline is a captivat...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Gorgeous Loupe Clean Natural Loose Indicolite Blue Tourmaline 15 Carats
Located in Peshawar, PK
Loose Indicolite Tourmaline Weight: 15 Carats Dimension: 16.8x11.2x8.7 Mm Origin: Kunar Afghanistan Shape: Emerald Color: Blue Treatment: Non / Natural Certificate: On Customer ...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

3.25 Carat Natural Loose Hot Pink Tourmaline Stone Cushion Cut Afghan Gemstone
Located in Bangkok, TH
Weight 3.25 carat Dimensions 9.4x8.2x5.2mm Treatment None Origin Afghan Clarity SI Shape Cut Cushion This 3.25 Carat Natural Hot Pink Tourmaline is a striking gemstone celebr...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

Loupe Clean Amazing 32.50 Carat Loose Swiss Blue Topaz From Brazilian Mine
Located in Peshawar, PK
Faceted Swiss Blue Topaz Weight: 32.50 Carats Dimension: 19 x 16 x 12.3 Mm Colour : Blue Shape: Cushion Origin: Brazil Swiss blue topaz is a vibrant, light blue gemstone known...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

5.90 Carat Natural Loose Citrine Asscher Shape Gem
Located in Peshawar, PK
Loose Yellow Citrine Weight: 5.90 Carats Dimension: 11 x 11 x 8.1 Mm Origin: Brazil Cut: Asscher Color: Yellow Treatment: Non Certificate: On Customer Demand Citrine is a vibrant, ...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

GIA Certified 0.52 Carat Fancy Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6223385854 Shape And Cut: Oval Carat Weight: 0.52 carat Measurements: 5.62x3.87x2.81 mm Color Grade: Fancy Yellow FEATURES OF THE DIAMOND: Our Fancy...
Category

2010s Asian Loose Gemstones

Materials

Diamond

Top Quality Loupe Clean 26.05 Carat Natural Loose Green Tourmaline
Located in Peshawar, PK
Faceted Green Tourmaline Weight: 26.05 Carat Dimension: 17.2 x 17.2 x 13.4 Mm Colour: Green Treatment: Non Certificate: On Customer Demand Shape: Octagon Clarity: Loupe Clean Tour...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Pair of Brazilian Aquamarine 99.95 Carat Octagonal Cut Loose Gems
Located in Valenza , IT
A pair of aquamarine weighing total carat 99.95, octagonal cut, from Brazil - Minas Gerais Our suggestion is to realize a pair of earrings or twin cuffs out of this enchanting mat...
Category

21st Century and Contemporary Loose Gemstones

Materials

Aquamarine

3.30 Carat Natural Loose Spring Green Tourmaline Cushion Shape Gem
Located in Peshawar, PK
Faceted Tourmaline Weight: 3.30 Carat Dimension: 9.1 x 7.6 x 5.6 Mm Treatment: Non Certificate: On Customer Demand Shape: Cushion Colour: Spring Green Tourmaline is a captivat...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

GIA Emerald Natural Diamond 1.60ct F/VS1 Loose GIA XX $2000 Credit, Inscription
By GIA
Located in San Diego, CA
Exquisite loose 1.60ct emerald-cut diamond certified by GIA with laser inscription number 1175388529. F Color and VS1 Clarity with no fluorescence. The diamond has excellent polish a...
Category

2010s American Modern Loose Gemstones

Materials

Green Sapphire, Emerald, Multi-gemstone, Rubelite, Ruby, Sapphire, Blue ...

1.27 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

GIA certified 1.37ct Unheated Burma Ruby
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. Myanmar (Burma) rubies are univer...
Category

21st Century and Contemporary Singaporean Art Deco Loose Gemstones

Materials

Ruby, 18k Gold, White Gold

1.05 Carat Natural Blue Ceylon Spinel
Located in Hua Hin, TH
1.05 Carat Natural Blue Spinel from Sri Lanka (Ceylon) Dimension: 6.43 x 5.17 x 3.51 mm Weight: 1.05 Carat Shape: Octagon Cut No Heat GIL Certified...
Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

1.19 Ct Pink Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural pink sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Pink Sapphire

0.92 Ct Blue Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural Blue sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

3.15 Ct Yellow Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural yellow sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury je...
Category

2010s Sri Lankan Loose Gemstones

Materials

Yellow Sapphire

2.64 Ct Pink Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural pink sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Pink Sapphire

5.15 Ct Pink Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural pink sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Pink Sapphire

2.92 Ct Green Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural green sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jew...
Category

2010s Sri Lankan Loose Gemstones

Materials

Green Sapphire

2.61 Ct Pink Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural pink sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jewe...
Category

2010s Sri Lankan Loose Gemstones

Materials

Pink Sapphire

1.03 Ct Green Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural green sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury jew...
Category

2010s Sri Lankan Loose Gemstones

Materials

Green Sapphire

1.15 Ct Yellow Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
This natural yellow sapphire offers elegance and sophistication. With its rich color saturation and precise cutting, it is the perfect centerpiece for an engagement ring or luxury je...
Category

2010s Sri Lankan Loose Gemstones

Materials

Yellow Sapphire

Loose Gemstones for Sale on 1stDibs

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.

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