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Loose Gemstones

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Loose Gemstones For Sale
1.88 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

1.79 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

1.76 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

1.75 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 0.15 Carat Fancy Deep Brownish Purple Pink Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5181816840 Shape And Cut: Marquise Carat Weight: 0.15 carat Measurements: 5.37 x 2.47 x 1.63 mm Color Grade: Fancy Deep Brownish Purple Pink FEATURE...
Category

2010s Asian Loose Gemstones

Materials

Diamond, Pink Diamond

1.74 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

1.69 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

2.40 Carat Natural Loose Hot Pink Spinel Stone Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 2.40 carat Dimensions 8.6x7.5x4.8mm Treatment None Origin Tanzanian Clarity VVS Shape Cut Cushion This 2.40 Carat Natural Loose Hot Pink Spinel captivates with its vi...
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Spinel

Natural Blue Sapphire Gemstone 3.39 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
Discover the captivating beauty of this natural blue sapphire, weighing 3.39 carats. Known for its rich blue color and superior clarity, this gemstone is perfect for creating a state...
Category

21st Century and Contemporary Malagasy Loose Gemstones

Materials

Blue Sapphire

6.25 Carat Natural Loose Blueish Green Tourmaline Asscher Cut Gem
Located in Peshawar, PK
Loose Bright Green Tourmaline Weight: 6.25 Carats Dimension: 10.1 x 10 x 8.5 Mm Colour: Green Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating ...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.92 Carat Violet Spinel from Burma Myanmar Lotus Certified
Located in Hua Hin, TH
3.92 Carat Violet Spinel from Burma (Myanmar) Shape: Cushion Cut Dimensions: 10.72 x 7.78 x 5.95 mm No Heat or treatment GIL certified: STO2022102451317
Category

2010s Burmese Loose Gemstones

Materials

Spinel

4.15 Carat Natural Loose Lagoon Tourmaline Square Cushion Shape Gem For Ring
Located in Peshawar, PK
Loose Lagoon Tourmaline Weight: 4.15 Carats Dimension: 8.9 x 8.5 x 7.1 Mm Colour: Lagoon Origin: Afghanistan Certificate: On Demand Treatment: Non Tourmaline is a captivating gemst...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Seafoam Pink Green Mix Tourmaline 5.25 Ct Natural Loose Gemstones Lot-Jewelry
Located in Peshawar, PK
Seafoam, Pink, and Green Mix Color Natural Tourmaline Loose Gemstones lot for Ring, Necklace Pendant, Bracelet or any other Jewelry Setting-Oval Cut!! 💎 GEMSTONE TYPE: Tourmaline ⚖...
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Tourmaline

8.90 Carat Natural Loose Lemon Quartz Pair Emerald Shape Gemstone
Located in Peshawar, PK
Yellow Lemon Quartz Pair Weight: 8.90 Carat Dimension: 11.5 x 8.4 x 6.2 Mm 11.6 x 8.4 x 6.6 Mm Origin; Brazil Color: Lemon Yellow Shape: Emerald Treatment: No...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Quartz

GRS Certified No Heat Briolette Pear Yellow Sapphire Cts 31.44
Located in Hong Kong, HK
Embrace the warmth of the sun with our radiant GRS Certified No Heat Briolette Pear Yellow Sapphire, a shimmering beacon of light in your jewelry collection. Crafted without any he...
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Yellow Sapphire

9.15 Carat Natural Loose Amethyst Emerald Shape Gemstone From Brazil
Located in Peshawar, PK
Stone: Amethyst Weight : 9.15 Carats Dimension: 15.8 x 10.1 x 8.2 Mm Origin: Brazil Shape: Emerald Color: Purple And White Treatment: Non Certificate: On Customer Demand Amethyst...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

1.50 Carat Natural Green Blue Tourmaline Pear Shape Loose Gemstone
Located in Peshawar, PK
Faceted Green Blue Tourmaline Weight: 1.50 Carat Dimension: 7.3 x 7.2 x 4.6 Mm Colour: Green Blue Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmaline is...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Lime Green Natural Peridot Ring Gemstone 5 Ct Octagon Emerald Cut for Jewelry
Located in Peshawar, PK
Lime Green Natural Peridot Loose Gemstone for Ring, Necklace Pendant, or any other Jewelry Setting-Octagon Emerald Cut from Supat Valley, Kohistan Pakistan!! 💎 GEMSTONE TYPE: Peri...
Category

21st Century and Contemporary Pakistani Contemporary Loose Gemstones

Materials

Peridot

GIA Certified 1.99 Carats Natural Diamond D / IF Triple XXX
Located in New Delhi, Delhi
An exceptional rare GIA Certified Natural Diamond of 1,99 carats, in perfect round brilliant cut , triple XXX , D color IF clarity, excellent quality, so sp...
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

4.40 Carat Natural Bi Colour Tourmaline Emerald Shape Loose Gemstone
Located in Peshawar, PK
Faceted Bi Colour Tourmaline Weight: 4.40 Carat Dimension: 15.5 x 6.5 x 5.1 Mm Colour: Seafoam And Green Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmal...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.05 Carats Natural Loose Seafoam Tourmaline Gemstone Cushion Cut Kunar Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 3.05 Carats Dimension:8.5x7.2x6.2 Color: Seafoam Shape: Cushion Origin: Afghanistan Treatment: Non / Natural Certificate: On Customer Demand Seafoam tourmaline...
Category

21st Century and Contemporary Afghan Artist Loose Gemstones

Materials

Tourmaline

3.15 Carat Natural Loose Aquamarine Trillion Shape Pakistan’s Gemstone
Located in Peshawar, PK
Faceted Aquamarine Weight: 3.15 Carats Dimensions: 10.2 x 10.1 x 6.3 Mm Origin; Shigar Valley Pakistan Treatment: Non Color: Blue White Shape: Trillion Aquamarine from Shigar Vall...
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Aquamarine

4.40 Carat Natural Loose Indicolite Tourmaline Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Indicolite Tourmaline Weight: 4.40 Carats Dimension: 8.9 x 8.5 x 7 Mm Colour: Indicolite Origin: Afghanistan Certificate: On Demand Treatment: Non Shape: Cushion Tourmaline ...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

3.60 Carat Natural Loose 5 Piece Mix Color Tourmaline Mix Cut Afghan Gemstones
Located in Bangkok, TH
Weight 3.60 carat Piece 5 Treatment None Origin Afghan Clarity VVS Shape Cut Mix Cut This 3.60 Carat Natural Loose Tourmaline Lot features 5 stunning gemstones in a variety...
Category

21st Century and Contemporary Afghan Modern Loose Gemstones

Materials

Tourmaline

3.65ct Oval Blue Sapphire GIA Certified Sri Lanka
Located in Toronto, Ontario
This is a stunning GIA Certified Sapphire The GIA report reads as follows: GIA Report Number: 2239220861 Shape: Oval Cutting Style: Cutting Style: Crown: Modified Brilliant Cut ...
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire, Sapphire

7.35 Carat Cushion Natural Alexandrite GIA Certified
Located in San Francisco, CA
A Rare 7.35 Carat Cushion Shaped Natural Alexandrite GIA Certificate 6192711041 was hand-selected by our experts for its top luster and unique color. T...
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Alexandrite

9.65 Carat Natural Loose Smoky Hessonite Garnet Ring Gemstone From Africa
Located in Peshawar, PK
Gemstone Type : Hessonite Garnet Weight : 9.65 Carats Dimensions : 13.3x10.9x7.4 Mm Origin : Africa Clarity : Smoky Shape: Long Cushion Color: Fanta Orange...
Category

16th Century Malagasy Aesthetic Movement Antique Loose Gemstones

Materials

Garnet, Hessonite

2.45 Carat Natural Loose Bi Colour Tourmaline Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Bi Colour Tourmaline Weight: 2.45 Carat Dimension: 8.6 x 7.1 x 4.7 Mm Colour: Pink And Yellow Treatment: Non Certificate: On Customer Demand Shape: Emerald Tourmaline is...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.16ct Oval Teal Blue Sapphire from Australia Unheated
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.16 cts Measurements: 7.22 x 5.23 x 3.17 mm Shape: Oval Cutting Style Crown: Brilliant Cut Cutting Style Pavilion: Step ...
Category

2010s Australian Loose Gemstones

Materials

Blue Sapphire

6.00 Carat Natural Loose Pink Kunzite Heart Shape Gemstone For Jewellery
Located in Peshawar, PK
Loose Pink Kunzite Weight: 6.00 Carats Dimension: 10.5 x 11.8 x 8.3 Mm Colour: Pink Origin: Kunar, Afghanistan Certficate: On Demand Shape: Heart-Shape Kunzite, a delicate and enc...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Kunzite

7.00 Carat Natural Loose Blue Green Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Blue Green Tourmaline Weight: 7.00 Carat Dimension: 12 x 9.2 x 7.1 Mm Colour: Blue Green Treatment: Non Certificate: On Customer Demand Shape: Cushion Tourmaline is a capt...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.36 Carat Very Light Green VVS2 Round Brilliant Natural Diamond — GIA Certified
Located in Ramat Gan, IL
This exquisite 1.36 carat Natural Very Light Green Round Brilliant Diamond is certified by GIA and displays a rare, naturally formed green hue. With an impressive VVS2 clarity grade,...
Category

2010s Loose Gemstones

Materials

Diamond

GCS Certified Pear-Shaped 2.54 Carat Paraiba Tourmaline
Located in London, GB
This Lustrous Pear-shaped Paraiba Tourmaline weighs approximately 2.54 Carats and measures 11.80mm by 7.70mm by 4.67mm. The tropical blue hues of this resplendent jewel are unique an...
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline, Paraiba

Adorable 5.25 Carats Natural Loose Heart Shape Dark Purple Amethyst Gem For Ring
Located in Peshawar, PK
Loose Amethyst Weight: 5.25 Carats Dimension: 11.7 x 12.1 x 7.6 Mm Origin: Brazil Treatment: Non Certificate: On Demand Shape: Heart Shape Amethyst, a resplendent purple variety of quartz, has captivated humanity for centuries with its enchanting beauty and mythical allure. The name "amethyst" derives from the Greek words "amethystos," meaning "not intoxicated," reflecting the ancient belief that this gemstone had the power to ward off drunkenness and promote sobriety. Adored for its regal purple hues ranging from delicate lilac to deep violet, amethyst has been treasured as a gemstone and adorned various pieces of jewelry throughout history. Its color is attributed to the presence of iron impurities combined with natural irradiation, creating the spectrum of purples that make each amethyst unique. Historically, amethyst has been associated with royalty and clergy. The gem adorned the crowns and jewelry of ancient Egyptian pharaohs and was a favorite in medieval Christian jewelry...
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

5.85 Carat Natural Loose Pink Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Pink Tourmaline Weight: 5.85 Carat Dimension: 12.2 x 9.5 x 6.6 Mm Colour: Pink Origin: Afghanistan Treatment: Colour Heated Certificate: On Customer Demand Tourmaline is...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.38ct Oval Purplish Red Ruby GIA Certified Tajikistan Unheated
Located in Toronto, Ontario
This is a stunning GIA Certified Ruby The GIA report reads as follows: GIA Report Number: 2225862640 Shape: Oval Cutting Style: Cutting Style: Crown: Brilliant Cut Cutting Style: ...
Category

2010s Tajikistani Loose Gemstones

Materials

Ruby

1.11 Ct Pink Sapphire Round 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

3.10 Carat Natural Loose Light Peach Tourmaline Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Light Peach Tourmaline Weight: 3.10 Carat Dimension: 8.5 x 7.0 x 6.4 Mm Colour: Light Peach Treatment: Non Certificate: On Customer Demand Shape: Emerald Tourmaline is a...
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.76 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

2.82 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

2.54 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

2.19 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

2.49 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

1.93 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.86 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

1.76 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.97 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.89 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.96 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

2.01 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.75 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.82 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.81 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

2.19 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

2.10 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
This natural Blue 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

Blue Sapphire

1.36 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

2.24 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

2.13 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

1.80 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

0.94 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

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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