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Loose Gem Stones Garnet

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Natural 1.53ct Vivid Purple Pink Rhodolite Garnet Oval Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Natural 1.53ct Vivid Purple Pink Rhodolite Garnet Oval 6.1x7.6mm Loose Gem Natural Loose Rhodolite
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Fine 2.70ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gem VS
By Gems and Jewels UK
Located in Birmingham, GB
Fine 2.70ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gem 8.4x7.6mm VS Fine Natural Rhodolite
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Fine 1.88ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gem 7.8x6.5mm
By Gems and Jewels UK
Located in Birmingham, GB
Fine 1.88ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gem 7.8x6.5mm Fine Natural Rhodolite
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Fine 3.19ct Vivid Orange Red Spessartine Garnet IF Oval Cut Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Fine 3.19ct Vivid Orange Red Spessartine Garnet IF Oval Cut Loose Gem 9.5x7.1mm Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

2.33 Carat Deep Orange Red Spessartine Garnet Heart Cut Loose Gem IF
By Gems and Jewels UK
Located in Birmingham, GB
2.33ct Deep Orange Red Spessartine Garnet Heart Cut Loose Gem 8.4x7.4mm IF Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

Fine 2.01ct Vivid Pink Purple Rhodolite Garnet Oval Cut 8.2x6.6mm Loose Gem IF
By Gems and Jewels UK
Located in Birmingham, GB
Fine 2.01ct Vivid Pink Purple Rhodolite Garnet Oval Cut 8.2x6.6mm Loose Gem IF Fine Natural VIVID
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Fine 2.45ct Vivid Purple Pink Rhodolite Garnet Round Diamond Cut 7.8mm Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Fine 2.45ct Vivid Purple Pink Rhodolite Garnet Round Diamond Cut 7.8mm Loose Gem Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, Garnet, Rhodolite

Fine 2.80ct Vivid Pink Purple Rhodolite Garnet Round Diamond Cut 7.5mm Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Fine 2.80ct Vivid Pink Purple Rhodolite Garnet Round Diamond Cut 7.5mm Loose Gem Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, Garnet, Rhodolite

Charismatic Hessonite Garnet Gem 2.50 carats Emerald Cut Madagascar Loose Gem
Located in Bangkok, TH
light to pass through it, enhancing its brilliance. garnet stone rhodolite garnet red garnet garnet
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet, Hessonite

Gorgeous Hot Red Rhodolite Garnet 3.15 Carats Loose Garnet Gems from Africa
Located in Bangkok, TH
: Bright Red Loose Garnet Gemstone WEIGHT: 3.15 carats DIMENSIONS: 8.9 x 7.6 x 5.5mm ORIGIN: Africa CLARITY
Category

21st Century and Contemporary Malawian Modern Loose Gemstones

Materials

Garnet, Rhodolite

1.20 Cts Purplish Pink Loose Rhodolite Garnet Ring Gem
Located in Peshawar, PK
Loose Rhodolite Weight: 1.20 Carats Dimension: 8.3x4.8x2.3 mm Origin: Tanzania Shape: Emerald
Category

21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones

Materials

Rhodolite, Garnet

1.20 Cts Purplish Pink Loose Rhodolite Garnet Ring Gem
1.20 Cts Purplish Pink Loose Rhodolite Garnet Ring Gem
Free Shipping
W 0.19 in D 0.1 in L 0.33 in
Natural 2.50ct Purple Red Rhodolite Garnet Oval Cut Loose Gem
Located in Birmingham, GB
Natural 2.50ct Purple Red Rhodolite Garnet Oval Cut Loose Gem 9.5 x 6.5mm Natural Loose Rhodolite
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

Fabulous Pinkish Red Natural Garnet Stone 1.85 CTS Loose Garnet Faceted Garnet
Located in Bangkok, TH
Fabulous Pinkish Red Natural Garnet Stone of 1.85 carats from Africa has a wonderful cut in a
Category

21st Century and Contemporary South African Modern Loose Gemstones

Materials

Garnet

3.50 Carats Natural Loose Spessartine Garnet Ring Gem January Birthstone
Located in Peshawar, PK
highly sought after by collectors and gem enthusiasts. In summary, spessartine garnet is a captivating
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Mandarin Garnet

2.85 Carat Natural Loose Rhodolite Garnet Oval Shape Ring Gem
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.85 Carats Dimension: 9.8 x 6.6 x 5 Mm Colour: Red Origin: Africa
Category

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

Materials

Rhodolite, Garnet

2.85 Carat Natural Loose Rhodolite Garnet Oval Shape Ring Gem
2.85 Carat Natural Loose Rhodolite Garnet Oval Shape Ring Gem
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W 0.26 in D 0.2 in L 0.39 in
Gorgeous Purplish Pink Loose Rhodolite Garnet 1.0 Carat Ring Gem
Located in Peshawar, PK
Loose Garnet Weight: 1 Carat Dimension: 5.9x5.5x3.4 Mm Origin: Tanzania Shape: Octagon Color
Category

21st Century and Contemporary Tanzanian Aesthetic Movement Loose Gemstones

Materials

Garnet, Rhodolite

Fine 2.52ct Vivid Orange Red Spessartine Garnet Oval Cut Loose Gem
Located in Birmingham, GB
Fine 2.52ct Vivid Orange Red Spessartine Garnet Oval Cut Loose Gem 8.2 x 7mm Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

Fine1.13ct Vivid Orange Red Spessartine Garnet Heart Cut Loose Gem 6.2x5.7mm
Located in Birmingham, GB
Fine1.13ct Vivid Orange Red Spessartine Garnet Heart Cut Loose Gem 6.2x5.7mm Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

2.50ct Vivid Purple Pink Rhodolite Garnet Fancy Oval Cut Loose Gem
Located in Birmingham, GB
2.50ct Vivid Purple Pink Rhodolite Garnet Fancy Oval Cut Loose Gem 8.8 x 6.3mm Natural Rhodolite
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

1.75 Cts Natural Loose Rhodolite Garnet Ring Gem From Tanzania Mine
Located in Peshawar, PK
Natural Loose Garnet Weight: 1.75 Carats Dimension: 7.2x5.9x4.7 Mm Origin: Tanzania Africa Shape
Category

21st Century and Contemporary Tanzanian Art Nouveau Loose Gemstones

Materials

Garnet, Rhodolite

Gorgeous Natural Loose Rhodolite Garnet Multi Shape 4.30 Carat Gem Lot
Located in Peshawar, PK
Loose Rhodolite Lot Weight: 4.30 Carats Size: 0.80 to 0.95 Carats Origin: Tanzania Shape: Multi
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Rhodolite

Natural 3.02ct Deep Purple Red Rhodolite Garnet Oval Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
Rhodolite Garnet Gem. 3.02 Carat with a beautiful deep purple red colour and good clarity, a clean stone
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Natural 2.28ct Vivid Pink Red Rhodolite Garnet Cushion Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
Rhodolite Garnet Gem. 2.28 Carat with a beautiful vivid purple red colour and good clarity, a clean stone
Category

20th Century Loose Gemstones

Materials

Garnet, Rhodolite

2.10 Carat Natural Loose Rhodolite Garnet Cushion Shape Gem For jewellery
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.10 Carats Dimension: 7.4 x 6.3 x 5 Mm Colour: Red Origin: Africa
Category

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

Materials

Garnet, Rhodolite

4.40 Carat Natural Loose Rhodolite Garnet Cushion Shape Gem From Africa
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.20 Carats Dimension: 10.1 x 8.2 x 5.6 Mm Colour: Red Origin
Category

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

Materials

Garnet, Rhodolite

Intense Green Tsavorite Garnet, Faceted Gem, 4, 61 ct., loose Gemstone
Located in Kirschweiler, DE
We are delighted to be able to offer for sale, this 4,61 ct. Tsavorite Garnet from our exclusive
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Garnet, Tsavorite

Spessartite Garnet Ring Loose Stone 6.74 Carat Unmounted Pear Shape
By Tamir
Located in Beverly Hills, CA
Gorgeous 6.74 carat Spessartite Garnet gemstone, offered unmounted to a fine gem connoisseur
Category

21st Century and Contemporary Tanzanian Contemporary Loose Gemstones

Materials

Garnet, Mandarin Garnet

3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
3.26ct Deep Purple Red Rhodolite Garnet Oval Cut 8.4x7.3mm Loose Gemstone Fine Large Natural Deep
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
3.26ct Deep Purple Red Rhodolite Garnet Oval Cut Loose Gemstone
Free Shipping
H 0.24 in W 0.34 in D 0.29 in
6.15 Carat Spessartite Mandarin Garnet Oval, Loose Unset Ring, Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This stunning spessartite Mandarin garnet has all the hallmarks of a collector gemstone! Weighing
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

Fine 1.90ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
Fine 1.90ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gemstone 7.8x6.7mm Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

Garnet Gems for Purchase 3.10 carats Pear Cut Loose Gemstone from Tanzania
Located in Bangkok, TH
light to pass through it, enhancing its brilliance. garnet stone rhodolite garnet garnet earrings
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

Deep Orange Red Spessartite Garnet 2.36ct Oval Cut Loose Gemstone VVS
By Gems and Jewels UK
Located in Birmingham, GB
Deep Orange Red Spessartite Garnet 2.36ct Oval Cut 8.2x6.8mm Loose Gemstone VVS Natural Loose
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

Natural Spessartite Orange Garnet Stones Lot Loose Gemstone From Africa
Located in Bangkok, TH
Natural Spessartite Orange Garnet Stones, a dazzling collection sourced directly from Africa. This lot of
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

7.0 Carat Natural Cloudy / Smoky Loose Hessonite Garnet Cushion Cut Ring Gem
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 7 Carats Dimension: 12.3x9.4x7.1 Mm Origin: Madagascar Africa
Category

2010s Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Hessonite

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

2.48 Carats Total Weight, Pear Cut Tsavorite Garnet Lot, 3 Loose Gemstones
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This set of loose gemstones, aka a "lot*" in the trade, has three unset African tsavorite garnet
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Tsavorite

Natural Loose Smoky Orange Hessonite Garnet 5.40 Carat Cushion Gem For Ring
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 5.40 Carats Dimension: 10.8 x 8.7 x 7.2 Mm Colour: Smoky Orange Cut
Category

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

Materials

Garnet, Hessonite

9.70 Carat Natural Loose Smoky Hessonite Garnet Cushion Shape Gem For Necklace
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 9.70 Carats Dimension: 13.1 x 10.8 x 7.3 Mm Colour: Smoky Orange Cut
Category

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

Materials

Hessonite, Garnet

Certified 2.95 Carats Natural Loose Rhodolite Garnet Gem For Jewellery
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.95 Carat Dimension: 10 x 8.4 x 4.4 Mm Certificate: Available
Category

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

Materials

Rhodolite

0.62 carats Demantoind Loose Garnet Stone Round Cut Natural Russian Gemstone
Located in Bangkok, TH
gemstone green garnet garnet stone jewelry garnets gems demantoid garnet garnet jewelry
Category

21st Century and Contemporary Russian Modern Loose Gemstones

Materials

Garnet

1.67 Carats Fanta Spessartite Loose Garnet Stone Emerald Cut Nigerian Gemstone
Located in Bangkok, TH
, as if capturing the essence of a flourishing summer garden. garnet garnet jewelry garnet stone
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Garnet

Fine 3.13 Carat Purplish Pink Rhodolite Garnet Heart Cut Loose Gemstone VVS
By Gems and Jewels UK
Located in Birmingham, GB
Fine 3.13ct Purplish Pink Rhodolite Garnet Heart Cut Loose Gemstone 9x8mm VVS Fine Natural
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet, Rhodolite

2.25 Carats Reddish Loose Garnet Stone Oval Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
Shape oval Cut fancy oval The 2.25 carat Reddish Garnet Stone, meticulously crafted into an Oval
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet

1.15 carats Demantoind Loose Garnet Stone Round Cut Natural Russian Gemstone
Located in Bangkok, TH
round Cut round brilliant The 1.15-carat Demantoid Garnet stone showcases the exquisite beauty of
Category

21st Century and Contemporary Russian Modern Loose Gemstones

Materials

Garnet

2.20 carats Demantoind Loose Garnet Stone Round Cut Natural Russian Gemstone
Located in Bangkok, TH
Round Cut Round brilliant The 2.20-carat Demantoid Garnet stone showcases the exquisite beauty of
Category

21st Century and Contemporary Russian Modern Loose Gemstones

Materials

Garnet

2.55 Carats Reddish Loose Garnet Stone Oval Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
oval Cut Custom Precision The 2.55 carat Reddish Garnet Stone, meticulously crafted into an Oval
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

1.70 Carats Pink Loose Garnet Stone Custom Precision Cut Tanzanian Gemstone
Located in Bangkok, TH
Shape octagon Cut Custom Precision his exquisite 1.70 carats Pink Garnet stone, custom precision
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

14.07 Carats Heart Shaped Red Loose Garnet Stone Natural Tanzanian Gemstone
Located in Bangkok, TH
jewelry garnet stone garnet pendant garnet necklaces garnet gemstone red garnet garnet stone jewelry
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

2.45 Carats Red Loose Garnet Stone Hexagon Cut Natural African Gemstone
Located in Bangkok, TH
Shape Hexagonal Cut Hexagon The captivating allure of a 2.45 carats Red Garnet Stone with a
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

Radiant Cut 3.21 Carat Red Rhodolite Garnet from Malawi Cocktail Ring Loose Gems
Located in Bangkok, TH
garnet. Garnet is widely used as a gem, the most common color of Garnet is red, the most usual tones
Category

21st Century and Contemporary Malawian Art Deco Loose Gemstones

Materials

Garnet, Rhodolite

4.95 Carats Pretty Natural Loose Smoky Hessonite Garnet Gem For Ring
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 4.95 Carats Dimension: 10.9 x 8.6 x 5.8 Mm Colour: Smoky Orange
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Hessonite

2.60 Carats Natural Loose Rhodolite Garnet Cushion Shape Gem For Jewellery
Located in Peshawar, PK
Loose Rhodolite Garnet Weight: 2.60 Carats Dimension: 8.6 x 7 x 4.8 Mm Colour: Red Origin
Category

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

Materials

Rhodolite

3.75 Carats Pretty Loose Hessonite Smoky Garnet Gem For Jewellery Making
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 3.75 Carats Dimension: 9.5 x 7.5 x 5.4 Mm Origin: Central African
Category

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

Materials

Hessonite

2.50 carats Vivid Red Loose Garnet Stone Asscher Cut natural Tanzanian Gemstone
Located in Bangkok, TH
display. garnet january birthstone garnet jewelry garnet stone garnet gemstone red garnet garnets gems
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

2.05 Carats Pink Loose Garnet Stone Step Asscher Cut Natural African Gemstone
Located in Bangkok, TH
gemstone garnet stone jewelry mens garnet jewelry garnets gems garnet price
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

1.45 Carats Pinkish Red Loose Garnet Stone Oval Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
oval Cut fancy oval The Pinkish Red Garnet Stone is a radiant gem of exquisite beauty, boasting a
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

1.95 Carats Loose Bright Red Garnet Stone Emerald Cut Natural African Gemstone
Located in Bangkok, TH
octagon Cut emerald The 1.95 carats Bright Red Garnet Stone is a mesmerizing example of natural
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

1.80 Carats Pinkish Red Loose Garnet Stone Oval Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
oval Cut custom precision The Pinkish Red Garnet Stone is a radiant gem of exquisite beauty
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

10.15 carats Natural Brown Garnet Stones Lot Loose Gemstones From Mali Africa
Located in Bangkok, TH
Brown Garnet Stones Lot, a collection of loose gemstones sourced from the rich mines of Mali, Africa
Category

21st Century and Contemporary Malian Modern Loose Gemstones

Materials

Garnet

2.75 Carats Vivid Red Loose Garnet Stone Asscher Cut Natural African Gemstone
Located in Bangkok, TH
octagon Cut Asscher Behold the exquisite allure of this 2.75 carat Vivid Red Garnet Stone, fashioned
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

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Loose Gem Stones Garnet For Sale on 1stDibs

You are likely to find exactly the loose gem stones garnet you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using gold, yellow gold and 22k gold. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a loose gem stones garnet from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. There have been many well-made iterations of the classic loose gem stones garnet over the years, but those made by Gems and Jewels UK, Sarosi By Timeless Gems and AB Jewelry NYC are often thought to be among the most beautiful. Today, if you’re looking for a brilliant cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and cushion cut alternatives. When shopping for a loose gem stones garnet, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Loose Gem Stones Garnet?

Prices for a loose gem stones garnet can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $33 and can go as high as $130,800, while this accessory, on average, fetches $200.

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.