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Mind Cut Loose Stones

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6.17 Carat Pink Cushion Cut Tourmaline Loose Gemstone
Located in Stamford, CT
necklace settings or purchased as a loose stone. Please feel free to contact us with any questions or
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

10.60 Carats Natural Loose Fancy Cut Citrine Gemstone From Brazil Mine
Located in Peshawar, PK
Loose Citrine Weight: 10.60 Carats Dimension: 13x12.9x10.1 Mm Origin: Brazil Color: Yellow Shape
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

39.70 Carats Natural Earth Mine Loose Amethyst Asscher Cut Gemstone
Located in Peshawar, PK
enhance intuition, promote sobriety, and stimulate the mind. Many consider it a stone of protection
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Genuine 1.90 Carat Natural Loose Indicolite Tourmaline Emerald Cut Gemstone
Located in Peshawar, PK
mind to explore a higher consciousness and spiritual connection. Blue Tourmaline or Indicolite is a
Category

Antique 15th Century and Earlier Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

GIA Certified 28.37 Carat Imperial Precious Topaz Emerald Cut Loose Gemstone
Located in Stamford, CT
customized ring and pendant necklace settings or purchased as a loose stone. Please feel free to contact us
Category

21st Century and Contemporary Loose Gemstones

Materials

Topaz

2.95 Carats Natural Loose Blueish Green Tourmaline Emerald Cut Ring Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 2.95 Carats Dimension: 7.5x7.3x6.4 Mm Origin: Afghanistan Color: Blue
Category

21st Century and Contemporary Afghan Aesthetic Movement Loose Gemstones

Materials

Tourmaline

Stunning 19.95 Carat Asscher Cut Natural Loose Golden Topaz from Pakistan
Located in Peshawar, PK
Origin : Skardu Color: Light Golden Shape: Emerald Cut: Asscher Certificate: On Demand Month: November
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz, Imperial Topaz

0.91 Carat Precisely Cut Asscher Silver Spinel Solitaire Ring Loose Gemstone
Located in Bangkok, TH
here keeping in mind that we will cut this piece with the help of our professional gem cutters in
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

Emerald Cut Natural Loose Aquamarine from Shigar Valley Mine March Birthstone
Located in Peshawar, PK
and at sea. The stone is said to help you sift through energy and information, create mental clarity
Category

21st Century and Contemporary Pakistani Russian Revival Loose Gemstones

Materials

Aquamarine

Emerald Cut Natural Loose Aquamarine from Shigar Valley Mine March Birthstone
Emerald Cut Natural Loose Aquamarine from Shigar Valley Mine March Birthstone
Free Shipping
H 0.65 in W 0.37 in D 0.31 in L 0.65 in
Beauteous 31.15 Carats Natural Loose Yellow Citrine Trilliant Fancy Cut Gemstone
Located in Peshawar, PK
Sunshine Stone" due to its ability to brighten any piece of jewelry it adorns. Often used as a November
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

Natural Golden Loose Flower Cut Topaz 13.25 Carat For Jewelry Making
Located in Peshawar, PK
beneficial in the ailments of liver, fever, appetite, cold & cough and indigestion. As it soothes the mind of
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

Natural Golden Loose Flower Cut Topaz 13.25 Carat For Jewelry Making
Natural Golden Loose Flower Cut Topaz 13.25 Carat For Jewelry Making
Free Shipping
H 0.55 in W 0.55 in D 0.39 in L 0.55 in
5.20 Carat Natural Cushion Cut No Heat Loose Violet Blue Sapphire Gemstone
Located in Stamford, CT
pendant necklace settings or purchased as a loose stone. Please feel free to contact us with any questions
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Purple Sapphire

2.40 Carat Pretty Loose Hessonite Garnet Trillion Cut Gem For Jewellery Making
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 2.40 Carats Dimension: 8.2 x 8.2 x 5 Mm Colour: Orange Cut
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Hessonite

6.75 Carats Natural Loose Green Tourmaline With Lagoon Color Shade Asscher Cut
Located in Peshawar, PK
Loose Tourmaline Weight: 6.75 Carats Dimension: 11.4x11.1x8 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.35 Carat Precision Cut Emerald Shape Loose Green Peridot Gemstone for Sell
Located in Peshawar, PK
relationships by balancing emotions and mind. This friendly bright green stone also has the uncanny ability to
Category

2010s Pakistani Loose Gemstones

Materials

Peridot

3.35 Carat Precision Cut Emerald Shape Loose Green Peridot Gemstone for Sell
3.35 Carat Precision Cut Emerald Shape Loose Green Peridot Gemstone for Sell
Free Shipping
H 0.37 in W 0.3 in D 0.23 in L 0.37 in
16.40 Carat Natural Loose Light Golden Topaz Emerald Cut from Skardu Mine
Located in Peshawar, PK
: Skardu Color: Light Golden Shape: Emerald Cut: Emerald Certificate: On Demand Month: November November
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

16.40 Carat Natural Loose Light Golden Topaz Emerald Cut from Skardu Mine
16.40 Carat Natural Loose Light Golden Topaz Emerald Cut from Skardu Mine
Free Shipping
H 0.6 in W 0.48 in D 0.39 in L 0.6 in
Softening Purple Amethyst Stone 8.70 carats Cushion Cut Natural Brazilian Gem
Located in Bangkok, TH
Shape Cushion Cut Fancy Cushion The Purple Amethyst Stone is believed to possess powerful healing
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Amethyst

Huge 33.70 Carats Natural Loose Purple Amethyst Necklace Gemstone
Located in Peshawar, PK
Loose Amethyst Weight: 33.70 Carats Dimension: 20x16.9x16.1 Mm Origin: Brazil Color: Purple
Category

21st Century and Contemporary Aesthetic Movement Loose Gemstones

Materials

Amethyst

15.80 Carats Natural Loose Dark Purple Amethyst Gem Dodecagon Fancy Shape
Located in Peshawar, PK
Loose Amethyst Weight: 15.80 Carats Dimension: 18.5x12.9x11.1 Mm Origin: Brazil Mine Shape
Category

21st Century and Contemporary Brazilian Art Nouveau Loose Gemstones

Materials

Amethyst

9.30 Carat Natural Loose Ametrine Octagon Shape Gem For Necklace Jewellery
Located in Peshawar, PK
amethyst and citrine crystals grow together in the same stone. The purple hue comes from the presence of
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

3.50 Carat Natural Loose Ametrine Square Shape Gem For Jewellery Making
Located in Peshawar, PK
crystals grow together in the same stone. The purple hue comes from the presence of iron impurities, while
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

17.70 Carat Natural Loose Ametrine Heart Shape Gem For Necklace Jewellery
Located in Peshawar, PK
crystals grow together in the same stone. The purple hue comes from the presence of iron impurities, while
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

3.05 Carat Natural Loose Apple Green Peridot Matching Pairs for Earrings Jewelry
Located in Peshawar, PK
relationships by balancing emotions and mind. This friendly bright green stone also has the uncanny ability to
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Peridot

8.55 Carat Majestic Natural Loose Blue Zircon From Cambodia For Jewelry Making
Located in Peshawar, PK
radioactive. These gemstones are also treated with heat to stabilize the radioactivity. Blue Zircon Stone
Category

2010s Cambodian Arts and Crafts Loose Gemstones

Materials

Zircon, Blue Zircon

8.55 Carat Majestic Natural Loose Blue Zircon From Cambodia For Jewelry Making
8.55 Carat Majestic Natural Loose Blue Zircon From Cambodia For Jewelry Making
Free Shipping
H 0.38 in W 0.36 in D 0.35 in L 0.38 in
4.10 Carats Natural Loose Bright Green Tourmaline Ring Jewelry Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 4.10 Carats Dimension: 8.6x8.2x7 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3 Carats Natural Loose Green Tourmaline Pieces For Jewellery Making
Located in Peshawar, PK
Loose Tourmaline Weight: 3.0 Carats Dimension: 10x4.8x3.1 Emerald 7.5x6.2x4.4 cushion Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

3.75 Carat Natural Loose Smoky Orange Hessonite Garnet Cushion Shape Gemstone
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 3.75 Carats Dimension: 10.5 x 6.5 x 6.2 Mm Colour: Smoky Orange Cut
Category

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

Materials

Hessonite, Garnet

3.65 Carat Natural Loose London Blue Topaz Baguette Shape Ring Gem
Located in Peshawar, PK
it a stone of calmness and tranquility, believed to soothe the mind and alleviate stress. It's also
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Blue Topaz, Topaz

10.00 Carat Natural Loose Ametrine Long Oval Shape Gem For Necklace
Located in Peshawar, PK
crystals grow together in the same stone. The purple hue comes from the presence of iron impurities, while
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

Gigantic 29.70 Carat Natural Loose Green Tourmaline AAA Quality Afghanistan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 29.70 Carats Dimension: 17.3x15.9x12.8 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Chrome Tourmaline

Elegant 17.40 Carat Natural Loose Golden Color Topaz From Skardu Mine
Located in Peshawar, PK
: Skardu Color: Golden Shape: Emerald Cut: Asscher Certificate: On Demand Month: November November
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

Genuine Huge 35.95 Carat Natural Loose Golden Topaz with Imperial Shade
Located in Peshawar, PK
: Skardu Color: Golden Shape: Long Cushion Cut: Cushion Certificate: On Demand Month: November November
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz, Imperial Topaz

Genuine Huge 35.95 Carat Natural Loose Golden Topaz with Imperial Shade
Genuine Huge 35.95 Carat Natural Loose Golden Topaz with Imperial Shade
Free Shipping
H 0.95 in W 0.61 in D 0.44 in L 0.95 in
Exquisite 3.00ct Ideal Cut Natural Diamond - GIA Certified
Located in רמת גן, IL
authenticity are beyond reproach, offering peace of mind and assurance of its exceptional value. Stone: 1 pc
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Natural Loose Smoky Orange Hessonite Garnet 3.75 Carat Cushion Gem For Ring
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 3.75 Carats Dimension: 10.5 x 6.5 x 6.2 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

Gorgeous 9.95 Carat Oval Shape Loose Ametrine Ring Gem From Brazi Mine
Located in Peshawar, PK
crystals grow together in the same stone. The purple hue comes from the presence of iron impurities, while
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst, Citrine

2.24 Carat Shield Cut Diamond I1 Clarity GIA Certified
Located in Kowloon, HK
*100% NATURAL FANCY COLOUR DIAMOND* ✪ Diamond Details ✪ ➛ Shape: Modified Shield Step Cut
Category

2010s Asian Loose Gemstones

Materials

White Diamond, Diamond

2.24 Carat Shield Cut Diamond I1 Clarity GIA Certified
2.24 Carat Shield Cut Diamond I1 Clarity GIA Certified
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H 0.1 in W 0.63 in L 0.33 in
2.00 Carat Fancy Light Brownish Greenish Yellow Heart cut diamond GIA Certified
Located in Kowloon, HK
^ Our heart-shaped diamond is a unique and romantic variation of the traditional diamond cut. This
Category

2010s Asian Loose Gemstones

Materials

Diamond, Yellow Diamond

8.88 Carat Green Tourmaline Cushion Cut
Located in Bangkok, TH
A massive, mesmerizing 8.88 Carat Tourmaline stone that is vivid green in color. It is completely
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

9.71 Carat Orange Tourmaline Cushion Cut
Located in Bangkok, TH
A massive, mesmerizing 9.71 Carat Tourmaline stone that is a gorgeous shade of orange. It is
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

Brilliant 1.12ct Ideal Cut Round Natural Diamond - GIA Certified
Located in רמת גן, IL
Brilliant 1.12 ct Ideal Cut Round Natural Diamond - GIA Certified Discover the pinnacle of
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Elegant 0.77 ct Ideal Cut Oval Diamond - GIA Certified
Located in רמת גן, IL
Elegant 0.77 ct Ideal Cut Oval Diamond - GIA Certified Introducing a jewel of light and elegance
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Flawless Brilliance: 1.04 ct Ideal Cut Round Diamond - GIA Certified
Located in רמת גן, IL
Flawless Brilliance: 1.04 ct Ideal Cut Round Diamond - GIA Certified Step into a realm of pristine
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Certified 3.15 Carat Square Cushion Cut Natural Blue Tourmaline
Located in London, GB
jewel with its dazzling blue colour that takes one’s mind to an enchanting lagoon. This stone is
Category

21st Century and Contemporary Loose Gemstones

Materials

Tourmaline

Certified 3.15 Carat Square Cushion Cut Natural Blue Tourmaline
Certified 3.15 Carat Square Cushion Cut Natural Blue Tourmaline
Free Shipping
W 0.37 in D 0.23 in L 0.37 in
0.18 Carat Fancy Orange Oval cut diamond GIA Certified
Located in Kowloon, HK
jewelry pieces like stud earrings or accent stones in rings. Even though it's not as large as some
Category

2010s Asian Loose Gemstones

Materials

Diamond

0.18 Carat Fancy Orange Oval cut diamond GIA Certified
0.18 Carat Fancy Orange Oval cut diamond GIA Certified
Free Shipping
H 0.09 in W 0.11 in L 0.17 in
Marvel x ECG 1.86 Carat Reality Stone Ruby Limited Edition #12 of 300
Located in New York, NY
This striking Reality Stone oval cut ruby has phenomenal clarity and depth of color. It was cut and
Category

21st Century and Contemporary Mozambican Contemporary Loose Gemstones

Materials

Ruby

GCS Certified 1.77 Carat Oval Cut Unheated Padparadscha Sapphire
Located in London, GB
This Oval cut Unheated Padparadscha Sapphire is a unique treasure in our collection. Famous for its
Category

21st Century and Contemporary Malagasy Loose Gemstones

Materials

Sapphire, Padparadscha Sapphire

2.01 Carat Fancy Light Brownish Greenish yellow Cushion cut diamond
Located in Kowloon, HK
stone. This Fancy Light Brownish Greenish Yellow diamond is a unique and rare gemstone with a
Category

2010s Asian Loose Gemstones

Materials

Diamond, Yellow Diamond

0.30 Carat Light Pink Pear cut diamond I1 Clarity GIA Certified
Located in Kowloon, HK
engagement rings or as accent stones in high-end jewelry pieces. Our pear-cut diamond, also known as a
Category

2010s Asian Loose Gemstones

Materials

Diamond, Pink Diamond

0.33 Carat Light Pink Round cut diamond I1 Clarity GIA Certified
Located in Kowloon, HK
considered small to medium-sized and is used in jewelry such as earrings, pendants, or accent stones in rings
Category

2010s Asian Loose Gemstones

Materials

Diamond

0.24 Carat Fancy Deep Orangy Pink Round Cut Diamond GIA Certified
Located in Kowloon, HK
popular and classic diamond cuts. It features a circular outline with 57 or 58 facets, maximizing
Category

2010s Asian Loose Gemstones

Materials

Diamond

6.15 Carats Adorable Green Amethyst Trillion Cut Gemstone For Jewellery Making
Located in Peshawar, PK
Loose Green Amethyst Weight: 6.15 Carats Dimension: 12.2 x 12.1 x 8.1 Mm Colour: Green Origin
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

2.04 Carat Fancy Dark Greenish Brown Cushion cut diamond GIA Certified
Located in Kowloon, HK
-carat cushion-cut diamond of this size has a significant presence and a good balance between size and
Category

2010s Asian Loose Gemstones

Materials

Brown Diamond, Diamond

0.42 Carat Fancy Yellow Cushion cut diamond SI2 Clarity GIA Certified
Located in Kowloon, HK
industry refers to stones that exhibit intense color beyond the standard color grading scale. In this case
Category

2010s Asian Loose Gemstones

Materials

Yellow Diamond

3.50 Carat Fancy Brownish Greenish Yellow Pear cut diamond GIA Certified
Located in Kowloon, HK
-cut diamond is characterized by its unique teardrop shape, blending elements of a round and marquise
Category

2010s Asian Loose Gemstones

Materials

Yellow Diamond, Diamond

0.73Carat Fancy Deep Yellow Orange Marquise Cut Diamond I1 Clarity GIA Certified
Located in Kowloon, HK
connoisseurs of fancy colored diamonds. This marquise-cut diamond is an elongated, boat-shaped stone with
Category

2010s Asian Loose Gemstones

Materials

Diamond

0.42 Carat Fancy Intense Purplish Pink Radiant Cut I2 Clarity GIA Certified
Located in Kowloon, HK
appearance. The intensity of the color, combined with the rarity of the stone, makes it highly sought after
Category

2010s Asian Loose Gemstones

Materials

Diamond

0.23-CARAT, FANCY INTENSE PINK, RADIANT CUT DIAMOND SI2 Clarity GIA Certified
Located in Kowloon, HK
diamond combines the elegance of the emerald cut with the brilliance of the round brilliant cut. Its
Category

2010s Asian Loose Gemstones

Materials

Diamond

1.03 Carat Fancy Yellow Green Pear cut diamond SI1 Clarity GIA Certified
Located in Kowloon, HK
Yellow Green ➛ Carat: 1.03 ➛ Clarity: Si1 ➛ GIA Certified ^FEATURES OF THE DIAMOND^ This pear cut
Category

2010s Asian Loose Gemstones

Materials

Diamond

1.16 Carat Fancy Pink Purple Cushion Cut Diamond VS1 Clarity GIA Certified
Located in Kowloon, HK
look. The cushion cut features larger facets, which can enhance the stone's sparkle and brilliance
Category

2010s Asian Loose Gemstones

Materials

Diamond

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Mind Cut Loose Stones For Sale on 1stDibs

Find an expansive variety of mind cut loose stones available on 1stDibs. All of the items for sale were constructed with extraordinary care, often using gold, 18k gold and 10k gold. Find a collection of 13 vintage versions or 92 modern creations for a more contemporary example of these cherished accessories. Our collection, which features older pieces for sale from the 18th Century and newer versions made as recently as the 21st Century, has proven very popular over the years. There are many different pieces in our collection of mind cut loose stones to choose from, but modern and contemporary mind cut loose stones are of considerable interest. Many examples in our inventory of these items are appealing no matter their origins, but Emilio!, Ico & the Bird Fine Jewelry and Kent Raible produced popular versions that are worth a look. Lovers of these pieces agree that it’s a versatile accessory, but a selection from our variety of 34 diamond versions can add an especially stylish touch. There are many cushion cut, emerald cut and asscher cut mind cut loose stones for sale. Most of our mind cut loose stones for sale are for women, but there are 97 pieces available to browse for men.

How Much are Mind Cut Loose Stones?

On average, mind cut loose stones at 1stDibs sell for $650, while they’re typically $90 on the low end and $70,000 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.