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Natural Spessartite Loose Garnet Gemstone 1.65 Carats Namibia Garnet for Jewelry
Located in Bangkok, TH
Natural Spessartite Loose Garnet Gemstone of 1.65 carats from Namibia has a wonderful cut in a Oval
Category

21st Century and Contemporary Namibian Modern Loose Gemstones

Materials

Garnet

1.67 Carats Fanta Spessartite Loose Garnet Stone Emerald Cut Nigerian Gemstone
Located in Bangkok, TH
Weight 1.67 carats Dimensions 7.02x5.25x4.00 mm Treatment none Origin Nigeria Clarity VVS Shape octagon Cut emerald Behold the enchanting allure of a 4.40-carat Apple Green...
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Garnet

2.26 Carat Spessartite Mandarin Garnet Octagon, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This lively orange spessartite garnet has beautiful color! The unusual modified brilliant facets
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

2.46 Carat Spessartite Mandarin Garnet Oval, Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This brilliant spessartite garnet has a beautiful electric orange color! Measuring 8.26 x 7.14 x
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

3.84 Carat Spessartite Garnet Oval, Unset Loose Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This fiery spessartine garnet has a beautifully vivid and intense medium orange color! Measuring 9.16 x 6.75 x 5.26 millimeters, it is a well-proportioned oval with exceptional brill...
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet

Spessartite Garnet Ring Gem 11.09 Carat Unmounted Oval Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Bright 11.09 carat Spessartite Garnet (Mandarin Garnet) oval gem, offered loose to a fine gemstone
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Garnet, Mandarin Garnet

Natural Spessartite Orange Garnet Stones Lot Loose Gemstone From Africa
Located in Bangkok, TH
loose gemstones showcases the intense orange hue characteristic of spessartite garnets, evoking the
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

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

Spessartite Garnet Ring Necklace Gem 7.39 Carat Shield Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Fearless 7.39 carat Spessartite Garnet unmounted fancy Shield gem, offered loose to a fine gemstone
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Garnet, Mandarin 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

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

5.24 Carat Cushion Spessartite Mandarin Garnet Loose Unset Ring Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
spessartite garnet variety, prized by collectors because of its rich orange hues and exceptional luster. The
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

Loose Spessartite Mandarin Garnet, 4.97 Carats, Gemstone for Ring or Pendant
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 4.97 carat cushion-cut Mandarin garnet is absolutely gorgeous! Spessartite garnets are a
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

Loose Spessartite Mandarin Garnet, 4.51 Carat Unset Ring or Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
, electric orange spessartite garnet is simply stunning! Weighing 4.51 carats, it is a beautifully faceted
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

Orange Spessartite Garnet, Faceted Gem, 15, 95 ct., loose Gemstone, natural
Located in Kirschweiler, DE
We are delighted to be able to offer for sale, this 15,95 ct. orange Spessartite Garnet of our
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Garnet

Loose Spessartite Mandarin Garnet, 4.50 Carat Pear Shape Gem for Ring, Pendant
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 4.50 carat pear-shaped spessartite garnet is absolutely spectacular and will make a stunning
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

15.14ct Oval Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 15.14 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

15.14ct Oval Fanta Orange Spessartite/Spessartine Garnet
15.14ct Oval Fanta Orange Spessartite/Spessartine Garnet
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W 0.58 in D 0.36 in L 0.48 in
5.77ct Oval Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 5.77 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

5.77ct Oval Fanta Orange Spessartite/Spessartine Garnet
5.77ct Oval Fanta Orange Spessartite/Spessartine Garnet
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W 0.43 in D 0.25 in L 0.36 in
3.26 ct Oval Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 3.26 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

3.26 ct Oval Fanta Orange Spessartite/Spessartine Garnet
3.26 ct Oval Fanta Orange Spessartite/Spessartine Garnet
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W 0.36 in D 0.21 in L 0.28 in
2.55 ct Oval Vivid Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 2.55 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.55 ct Oval Vivid Fanta Orange Spessartite/Spessartine Garnet
2.55 ct Oval Vivid Fanta Orange Spessartite/Spessartine Garnet
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W 0.33 in D 0.18 in L 0.27 in
2.2 ct Cushion Vivid Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 2.2 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

3.09 ct Oval Vivid Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 3.09 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

3.09 ct Oval Vivid Fanta Orange  Spessartite/Spessartine Garnet
3.09 ct Oval Vivid Fanta Orange  Spessartite/Spessartine Garnet
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W 0.36 in D 0.19 in L 0.31 in
2.55 Ct Oval Vivid Fanta Orange Spessartite / Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 2.55 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

37.87ct Vivid Mandarin Orange Spessartine / Spessartite Garnet Oval Cabochon
Located in Toronto, Ontario
RESULTS Species: Spessartine Garnet Variety: Geographic Origin: Treatment: Item Description: One loose
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.34 ct Pear Shape Vivid Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 2.34 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.34 ct Pear Shape Vivid Fanta Orange Spessartite/Spessartine Garnet
Located in Toronto, Ontario
Description: Gem Type: Spessartite Garnet Number of Stones: 1 Weight: 2.34 cts Measurements
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.11ct Vivid Fanta Orange Spessartine/Spessartite Garnet Oval, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 2.11 carats Measurements: 7.82 x 6.93
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.23ct Vivid Fanta Orange Spessartine/Spessartite Garnet Cushion, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 2.23 carats Measurements: 7.76 x 6.54
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

1.97 Ct Fanta Orange Spessartine / Spessartite Garnet Cushion, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 1.97 carats Measurements: 6.93 x 6.39
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

2.93ct Vivid Fanta Orange Spessartine/Spessartite Garnet Oval, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 2.93 carats Measurements: 8.47 x 6.63
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

Vivid Fanta Orange Spessartine/Spessartite Garnet 3.00ct Oval, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 3 carats Measurements: 8.48 x 6.97 x
Category

2010s Nigerian Loose Gemstones

Materials

Garnet

Reddish Orange Spessartine, Spessartite or Mandarin Garnet 5.10 Carat Pear Shape
Located in Peshawar, PK
: Madagascar Certificate: On demand Spessartine is a rare form of garnet that is also known as Spessartite
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Garnet, Mandarin Garnet

Lovely Orange Red Spessartite Garnet 2.80 CT Top Spessartine Garnet For Jewelry
Located in Bangkok, TH
Lovely Orange Red Spessartite Garnet, Available For Sale at Wholesale Price Natural High Quality
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet

1.60 Carat Loose Fire Spessartine Garnet from Afghanistan Mine
Located in Peshawar, PK
stimulant. Garnet is thought to be extremely beneficial in the realm of business. There is Spessartite
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Garnet

1.60 Carat Loose Fire Spessartine Garnet from Afghanistan Mine
1.60 Carat Loose Fire Spessartine Garnet from Afghanistan Mine
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H 0.27 in W 0.25 in D 0.2 in L 0.27 in
Genuine 0.65 Carat Natural Loose Fanta Spessartine Garnet from Afghanistan Mine
Located in Peshawar, PK
Spessartite Garnet & Spessartine Garnet. Spessartite is synonymous with Spessartine, though in the gem trade
Category

Antique Early 17th Century Afghan Art Nouveau Loose Gemstones

Materials

Garnet

SI Clarity 1.60 Carat Loose Spessartine Garnet Fancy Cut from Afghanistan Mine
Located in Peshawar, PK
stimulant. Garnet is thought to be extremely beneficial in the realm of business. There is Spessartite
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Garnet

SI Clarity 1.60 Carat Loose Spessartine Garnet Fancy Cut from Afghanistan Mine
SI Clarity 1.60 Carat Loose Spessartine Garnet Fancy Cut from Afghanistan Mine
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H 0.29 in W 0.26 in D 0.19 in L 0.29 in
SI Clarity 1.25 Carat Pixel Bar Cut Loose Fanta Orange Spessartine Garnet
Located in Peshawar, PK
stimulant. Garnet is thought to be extremely beneficial in the realm of business. There is Spessartite
Category

2010s Afghan Arts and Crafts Loose Gemstones

Materials

Mandarin Garnet, Garnet

Garnet Gems for Purchase 3.10 carats Pear Cut Loose Gemstone from Tanzania
Located in Bangkok, TH
hessonite garnet spessartite garnet
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

1.67ct Vivid Fanta Orange Spessartine/Spessartite Garnet Pear, GIA Certified
Located in Toronto, Ontario
: Geographic Origin: Treatment: Item Description: One loose stone Weight: 1.67 carats Measurements: 7.39 x 6.92
Category

2010s Nigerian More Jewelry

Materials

Garnet

Spessartite Garnet Trilliant Cut Cts 3.17 Cocktail Ring
Located in Geneva, CH
Spessartite garnet Trilliant cut stone weighing a total of 3.17 Carats, offered loose to create an
Category

2010s Cocktail Rings

Materials

Garnet

Spessartite Garnet Cushion Cut Pair Cts 4.52 Earrings
Located in Geneva, CH
Spessartite garnet Cushion cut stone weighing a total of 4.52 Carats, offered loose to create an
Category

2010s Stud Earrings

Materials

Garnet

Spessartite Garnet Emerald Cut Pair, 6.35 Cts Earrings
Located in Geneva, CH
Spessartite garnet Emerald cut stone weighing a total of 6.35 Carats, offered loose to create an
Category

2010s Stud Earrings

Materials

Emerald, Garnet

Spessartite Garnet Cushion Pair, 3.73 Cts Earrings or Toi & Moi Ring
Located in Geneva, CH
Spessartite garnet Cushion cut stones weighing a total of 3.73 Carats, offered loose to create an
Category

2010s Stud Earrings

Materials

Garnet

Spessartite Garnet Pear Shape Pair 4.40 Cts Earrings or Toi & Moi Ring
Located in Geneva, CH
Spessartite garnet pear shape cut stones weighing a total of 4.40 Carats, offered loose to create
Category

2010s Stud Earrings

Materials

Garnet

Spessartite Garnet Oval Cut Pair, Cts 4.29 Earrings or Toi & Moi Ring
Located in Geneva, CH
Spessartite garnet Oval cut stones weighing a total of 4.29 Carats, offered loose to create an
Category

2010s Stud Earrings

Materials

Garnet

Mandarin Garnet Ring Necklace Gem 2.99 Carat Kite Shape Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Cutting edge 2.99 carat "loupe clean", Mandarin Garnet (Spessartite) loose gemstone. This kite
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Garnet, Mandarin Garnet

Spessartite Garnet Ring Gem 10.49 Carat Oval Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Very impressive 10.49 carat Spessartite Garnet (Mandarin Garnet) oval gem, offered loose to a fine
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Mandarin Garnet, Garnet

Spessartite Garnet Ring Gem 10.49 Carat Oval Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Very impressive 10.49 carat Spessartite Garnet (Mandarin Garnet) oval gem, offered loose to a fine
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Garnet, Mandarin Garnet

Spessartite Garnet Ring Gem 9.59 Carat Hexagon Unmounted Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Pristine 9.59 carat Spessartite Garnet Hexagon gem, offered loose to a fine gemstone connoisseur
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Garnet, Mandarin Garnet

Loose Spessartite Garnet, Emerald Cut .84 Carat Reddish Orange Solitaire
Located in Greensboro, NC
Shape/Cut: Emerald Color: Reddish Orange Dimensions (mm): 7.01 x 4.91 Weight: 0.84ct Condition: New Please check out the enlarged pictures. Thank you for taking the time to r...
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Garnet

37.87ct Vivid Mandarin Orange Spessartine / Spessartite Garnet Oval Cabochon
Located in Toronto, Ontario
RESULTS Species: Spessartine Garnet Variety: Geographic Origin: Treatment: Item Description: One loose
Category

2010s Loose Gemstones

Materials

Garnet

Orange Spessartite Garnet 3.10 carats Pear cut Natural Nigerian Garnet Gemstone
Located in Bangkok, TH
Loose Gemstone Spessartite Garnet Gemstone Weight 3.10 carats Dimensions 9.4 x 9.1 x 5.4 mm Origin
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Garnet

Reddish Spessartite Garnet 1.65 carats Fancy Oval Cut Natural Nigerian Gemstone
Located in Bangkok, TH
exquisite Fancy Oval Cut Spessartite Garnet, boasting a rare 1.65 carat weight and hailing from the natural
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Garnet

Spessartite Red Garnet 5.95 carats Fancy Oval Cut Natural Mozambique's Gemstone
Located in Bangkok, TH
Fancy Oval Cut Spessartite Red Garnet, a natural Mozambique gemstone. This exquisite gem, with its fiery
Category

21st Century and Contemporary Mozambican Modern Loose Gemstones

Materials

Garnet

Iridescent Red Spessartite Garnet 6.15 carats Fancy Oval Cut Tanzanian Gemstone
Located in Bangkok, TH
Red Spessartite Garnet, meticulously cut into a captivating 6.15-carat Fancy Oval gemstone. Sourced
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

GIA No Heat Natural Transparent Orange Spessartite Garnet Weighing 27.88 Carats
By OGI Ltd
Located in New York, NY
GIA no heat natural brilliant step cut transparent orange Spessartite Garnet weighing 27.88 carats
Category

20th Century Brazilian Contemporary Loose Gemstones

Materials

Garnet

IGI Certified 8.88ct Deep Red Orange Spessartine Garnet Heart Cut Rare Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Natural deep reddish orange Spessartine/spessartite garnet with a stunning deep colour. 8.88 carat
Category

21st Century and Contemporary Loose Gemstones

Materials

Garnet

Vivid Red Garnet Pair 8.10 carat Round Brilliant Cut Natural Gem from Madagascar
Located in Bangkok, TH
spessartite garnet
Category

21st Century and Contemporary Maghreb Modern Loose Gemstones

Materials

Garnet

Sterling Silver Narrow Stacking Cuff with Amethyst Gemstones
By Martha Seely
Located in Carlisle, MA
so it can fit tightly and not hang too loosely. The cuff has enough presence to be worn by itself
Category

2010s American Contemporary Cuff Bracelets

Materials

Amethyst, Sterling Silver

Sterling Silver Narrow Stacking Cuff with Amethyst Gemstones
Sterling Silver Narrow Stacking Cuff with Amethyst Gemstones
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H 2.23 in W 2.77 in Dm 7 in
Sterling Silver Narrow Stacking Cuff with Citrine Gemstones
By Martha Seely
Located in Carlisle, MA
tourmaline, pink tourmaline. Size Large: Citrine and Amethyst Other stones available are: Spessartite
Category

2010s American Contemporary Cuff Bracelets

Materials

Citrine, Sterling Silver

Sterling Silver Narrow Stacking Cuff with Citrine Gemstones
Sterling Silver Narrow Stacking Cuff with Citrine Gemstones
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H 2.23 in W 2.77 in Dm 7 in
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Spessartite Loose For Sale on 1stDibs

On 1stDibs, you can find the most appropriate spessartite loose for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from silver and sterling silver — can elevate any look. Creating a spessartite loose has been a part of the legacy of many jewelers, but those produced by Martha Seely, Merkaba and Sarosi By Timeless Gems are consistently popular. A spessartite loose can make for a versatile accessory, but a selection from our variety of 14 garnet versions can add an especially stylish touch. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes round cut and brilliant cut alternatives. When shopping for a spessartite loose, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Spessartite Loose?

On average, a spessartite loose at 1stDibs sells for $1,925, while they’re typically $220 on the low end and $49,000 for the highest priced versions of this item.

Finding the Right loose-gemstones for You

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.