Skip to main content

Loose Gemstones Asscher

5
to
29
38
5
195
38
3
2
1
1
1
1
1
1
1
1
17
3
2
1
Sort By
3.65 Cts Natural Light Aquamarine Loose Gemstone Asscher Cut From Pakistan Mine
Located in Peshawar, PK
Blue Shape: Asscher Certficate: On Customer Demand Treatment: Non . Aquamarine is a captivating
Category

Antique Early 1600s Pakistani Arts and Crafts Loose Gemstones

Materials

Aquamarine

39.70 Carats Natural Earth Mine Loose Amethyst Asscher Cut Gemstone
Located in Peshawar, PK
Loose Amethyst Weight: 39.70 Carats Dimension: 19.1x19.3x16 Mm Origin: Brazil Shape: Asscher
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

6.05 Carat Stunning Natural Loose Purple Amethyst Asscher Cut Gemstone
Located in Peshawar, PK
Loose Amethyst Weight: 6.05 Carats Dimension: 10.9x10.6x8.1 Mm Origin: Brazil Shape: Asscher Cut
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

Amethyst Necklace Ring Gem 83.27 Carat Asscher Cut Brazilian Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Incredible 83.27 carat Brazilian Amethyst square octagon Asscher cut gem, offered loose to an avid
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Amethyst, Quartz

1.30 Carats Green Loose Peridot Stone Asscher Cut Natural Pakistani Gemstone
Located in Bangkok, TH
crafted into an Asscher cut, showcasing the natural brilliance of this Pakistani gemstone. Originating
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Peridot

2.55 Carats Orange Loose Citrine Stone Asscher Cut Natural Brazilian Gemstone
Located in Bangkok, TH
octagon Cut Asscher Imbued with the fiery hues of a Brazilian sunset, this exquisite orange citrine
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Citrine

Golden Topaz 27.20 Carat Asscher Cut Ring or Necklace Loose Gemstone
Located in Bangkok, TH
27.20 Carats Stunning Loose Golden Topaz from Pakistan is for sale at very good. The price of this
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Topaz

Vivid Blue Topaz 15.65 carats Asscher Cut Natural Loose Madagascar's Gemstone
Located in Bangkok, TH
the pristine sources of Madagascar, this natural gemstone exhibits a mesmerizing Asscher Cut, known
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Topaz, Blue Topaz

Tourmaline Earrings Gemstone Pair 11.26 Carat Unset Asscher Cut Loose Gems
By Merkaba
Located in Beverly Hills, CA
of 11.26 carats, offered unmounted to a fine gemstone lover. Returns are accepted and paid by us
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Tourmaline

Beauteous 1.10 Carats Loose Blueish Green Tourmaline Asscher Cut Ring Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 1.10 Carats Dimension: 5.9x5.7x4.5 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Aesthetic Movement Loose Gemstones

Materials

Tourmaline

0.91 Carat Precisely Cut Asscher Silver Spinel Solitaire Ring Loose Gemstone
Located in Bangkok, TH
Precisely Cut Asscher Silver Spinel was acquired in Thailand as a rough piece of gemstone. It was brought
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

8.65 Carats Natural Loose Mint Tourmaline Asscher Cut Gemstone Afghanistan Mine
Located in Peshawar, PK
Loose Mint Tourmaline Weight: 8.65 Carats Dimension: 12.2x12.1x8.3 Mm Origin: Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Stunning 7.35 Carats Perfect Square Asscher Cut Loose Citrine Ring Gemstone
Located in Peshawar, PK
Shape: Square Cut: Asscher Certificate: On Customer Demand Citrine is a captivating gemstone known for
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

12.10cts Natural Loose Peach Morganite Gemstone Asscher Cut for Jewelry Making
Located in Peshawar, PK
Gemstone Type : Morganite Weight : 12.10 Carats Dimensions : 13.9x13.7x10.6 Mm Origin : Brazil
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Morganite

2.50 carats Vivid Red Loose Garnet Stone Asscher Cut natural Tanzanian Gemstone
Located in Bangkok, TH
Octagon Cut Asscher Cut The exquisite 2.50-carat Vivid Red Garnet Stone, cut into an Asscher shape
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

Intense Color 9.55 Carat Loose Electric Blue Topaz Asscher Cut Gemstone
Located in Peshawar, PK
Clarity : Loupe Clean Shape: Square Cut/Facet: Asscher Color: Intense Blue Certificate: On Demand Blue
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Topaz, Blue Topaz

Rare Purplish Lavender Pink Natural Kunzite Loose Gemstone, 20.75 Ct-Asscher Cut
Located in Peshawar, PK
Kunzite Loose Gemstone. Radiating with an unbeatable luster that captures the essence of refined
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Kunzite

2.05 Carats Pink Loose Garnet Stone Step Asscher Cut Natural African Gemstone
Located in Bangkok, TH
octagon Cut fancy Asscher Crafted with precision and beauty, this exquisite Pink Garnet Stone boasts
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Garnet

5.2ct Pink Asscher Rubellite Gemstone
By Hannaboya
Located in Sheridan, WY
prestigious Asscher style, this gemstone boasts step-cut facets that draw the eye inward, enhancing the
Category

2010s African Artisan Loose Gemstones

Materials

Rubelite

5.2ct Pink Asscher Rubellite Gemstone
5.2ct Pink Asscher Rubellite Gemstone
No Reserve
W 0.52 in D 0.32 in L 0.52 in
Gorgeous Mint Green Loose Tourmaline Ring Gem 12.35 Carats Asscher Cut Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 12.35 Carats Dimension: 13.3x13.3x9.8 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Elegant 9.80 Carat Perfect Square Asscher Cut Citrine Loose Gemstone Brazil Mine
Located in Peshawar, PK
Gemstone Type : Citrine Weight : 9.80 Carats Dimensions : 12.4x12.4x9.8 mm Clarity : Loupe Clean
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

10.60 Carat Natural Loose Citrine Asscher Cut Ring Gemstone From Brazil Mine
Located in Peshawar, PK
Color: Brown Yellow Shape: Asscher Certificate: On Demand Month: November . The Many Healing Properties
Category

Late 20th Century Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

8.85ct Asscher Cut No-Oil Natural Untreated Emerald Gemstone
By Hannaboya
Located in Sheridan, WY
Introducing the Asscher Cut 8.85ct No-Oil 100% Natural Untreated Emerald Loose Gemstone: Pure
Category

2010s African Artisan Loose Gemstones

Materials

Emerald

1.00 Carat Loose G / VS1 Asscher Cut Diamond GIA Certified
Located in Sherman Oaks, CA
1 Carat Loose G / VS1 Asscher Cut Diamond GIA Certified Diamond General Info Diamond Cut: Asscher
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.00 Carat Loose G / VS1 Asscher Cut Diamond GIA Certified
1.00 Carat Loose G / VS1 Asscher Cut Diamond GIA Certified
Free Shipping
W 0.23 in D 0.16 in L 0.22 in
6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
Located in Peshawar, PK
Loose Tourmaline Weight: 6.65 Carats Dimension: 10.8x10.3x7.9 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
6.65 Carats Asscher Cut Loose Green Seafoam Tourmaline Ring Gem
Free Shipping
W 0.41 in D 0.32 in L 0.43 in
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
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Authentic Aquamarine Gemstones 3.15 carats Asscher Cut Natural Pakistani Gem
Located in Bangkok, TH
Clean Shape Octagon Cut Asscher Discover a stunning collection of authentic Aquamarine gemstones
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Aquamarine

2.85 Carats Light Yellow Scapolite Stone Asscher Cut Tanzanian Gemstone
Located in Bangkok, TH
Shape octagon Cut Asscher Behold the mesmerizing beauty of this Tanzanian gemstone, a scapolite
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Other

14.05 Carat Natural Loose Golden Topaz Asscher Cut Gem For Necklace
Located in Peshawar, PK
: Asscher Color: Golden Treatment: Non Certificate: On Demand Golden Topaz is a radiant gemstone renowned
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

7.40 Carat Natural Loose Golden Topaz Asscher Cut Gem For Jewellery
Located in Peshawar, PK
: Asscher Color: Golden Treatment: Non Certificate: On Demand Golden Topaz is a radiant gemstone renowned
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

Asscher Cut Loose Madeira Citrine Square Shape 3.60 Carats From Brazil
Located in Peshawar, PK
Loose Madeira Citrine Weight: 3.60 Carats Dimension: 8.9 x 8.9 x 7.1 Mm Origin: Brazil Colour
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

Gorgeous Mint Green Loose Tourmaline Jewelry Gem 24.20 Carat Asscher Cut
Located in Peshawar, PK
Gemstone Type : Tourmaline Weight : 24.20 Carats Dimensions : 16.9x16.9x12.1 Mm Origin : Kunar
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Tourmaline

Orange Fanta 3.45 Carats Loose Madeira Citrine Asscher Cut Ring Gem
Located in Peshawar, PK
Loose Mandarin Citrine Weight: 3.45 Carats Dimension: 8.9x8.8x7 Mm Origin: Brazil Shape: Asscher
Category

Early 2000s Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine, Mandarin Garnet

Rare Lagoon Yellowish Green Tourmaline Gemstones 3.60Ct Asscher Cut for Earrings
Located in Peshawar, PK
Green Natural Tourmaline Loose Gemstones, meticulously crafted into Asscher Cut designs, showcasing
Category

21st Century and Contemporary Bahraini Contemporary Loose Gemstones

Materials

Tourmaline

Glamming 20.50 Carats Asscher Cut Natural Aquamarine Gemstone Pair for Earrings
Located in Bangkok, TH
Gemstone Name Loose Aquamarine Pair for Earrings Weight 20.50 carats (10.20 carats each) Dimensions
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Aquamarine

Stunning 19.95 Carat Asscher Cut Natural Loose Golden Topaz from Pakistan
Located in Peshawar, PK
Gemstone Type : Topaz Weight : 19.95 Carats Dimensions : 14.3x13.2x10.3 mm Clarity : Eye Clean
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz, Imperial Topaz

1.65 Carats Purplish Red Tourmaline Pair Asscher Cut Natural Nigerian Gemstone
Located in Bangkok, TH
octagon Cut Asscher This stunning pair of Purplish Red Asscher Cut Natural Nigerian Tourmaline
Category

21st Century and Contemporary Nigerian Modern Loose Gemstones

Materials

Tourmaline

Natural Yellow Certified Citrine Gemstone, 16.70 Carat Asscher Cut for Pendant
Located in Peshawar, PK
GEMSTONE TYPE: Citrine PIECE(S): 1 WEIGHT: 16.70 Carats SHAPE: Emerald & Asscher Cut SIZE (MM
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Citrine

14.65 Carat Natural Loose Golden Topaz Asscher Shape Gem For Necklace Jewellery
Located in Peshawar, PK
: Asscher Color: Golden Treatment: Non Certificate: On Demand Golden Topaz is a radiant gemstone renowned
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

Glam of Purple Amethyst 7.80 carats Asscher Cut Natural Brazilian Gemstone
Located in Bangkok, TH
carat Purple Amethyst gemstone, expertly cut in an Asscher style to showcase its natural beauty
Category

21st Century and Contemporary Brazilian Modern Loose Gemstones

Materials

Amethyst

Pretty 5.95 Carat Natural Loose Ametrine Trystine Asscher Shape Gem For Ring
Located in Peshawar, PK
Loose Ametrine Weight: 5.95 Carat Dimension: 11.5 x 10.1 x 7.9 Mm Origin: Brazil Cut: Asscher
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

4.65 Carat Natural Loose Golden Topaz Asscher Cut Gem For Jewellery Making
Located in Peshawar, PK
: Asscher Color: Golden Treatment: Non Certificate: On Demand Golden Topaz is a radiant gemstone renowned
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

4.15 Carats Asscher Cut Soft Pink Loose Tourmaline Ring Gem Afghanistan Mine
Located in Peshawar, PK
Loose Tourmaline Weight: 4.15 Carats Dimension: 9.5x9.5x6.4 Mm Origin: Afghanistan Shape: Square
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Top Quality 24.15 Carats Natural Loose Green Tourmaline Lagoon Shade Asscher Cut
Located in Peshawar, PK
Loose Tourmaline Weight: 24.15 Carats Dimension: 16.8x16.8x11.9 Mm Origin: Kunar Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

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

4.25 Carat Natural Loose Light Green Tourmaline Asscher Cut Gem For Jewellery
Located in Peshawar, PK
Loose Tourmaline Weight: 4.25 Carats Dimension: 9.5 x 9.4 x 6.4Mm Colour: Light Green Origin
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Asscher Cut 4.30 Carat Natural Loose Aquamarine Square Shape Gems For Ring
Located in Peshawar, PK
Loose Aquamarine Weight: 4.30 Carat Dimension: 10.3 x 9.8 x 6.8 Mm Colour : Blue and white Origin
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Aquamarine

Amazing 4.15 Carats Natural Loose Unheated Aquamarine Asscher Cut Gem For Ring
Located in Peshawar, PK
Loose Aquamarine Weight: 4.15 Carat Dimension: 10 x 9.8 x 6.6 Mm Colour : Blue and white Origin
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Aquamarine

Capture the Essence of Nature Asscher Cut Peridot Gemstone Refresh and Renew
Located in Bangkok, TH
(Slightly Included) Shape Octagon Cut Asscher Experience the Mesmerizing Brilliance of Apple Green
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Peridot

10.30 Carat Loose Sky Blue Topaz Asscher Cut Baguette Shape from Brazil
Located in Peshawar, PK
: Eye Clean Shape: Baguette Cut: Long Asscher Color: Blue Certificate: On Demand . Blue Topaz
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Topaz, Blue Topaz

Light Purplish Pink Natural Kunzite Gemstone, 21.55 Ct Asscher Cut for Pendant
Located in Peshawar, PK
GEMSTONE TYPE: Kunzite PIECE(S): 1 WEIGHT: 21.55 Carats SHAPE: Asscher Cut SIZE (MM): 15.63 x
Category

21st Century and Contemporary Afghan Contemporary Loose Gemstones

Materials

Kunzite

Majestic Natural Loose Topaz Gemstone 20.05 Carats Topaz Jewellery Faceted Topaz
Located in Bangkok, TH
Majestic Natural Loose Topaz Gemstone, available for sale at wholesale price natural high- quality
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Topaz

3.77 Cts Natural Blue Tanzanite, Octagon Shape, Asher Cut, Loose Gemstone
Located in New York, NY
Morganite , Aquamrine, Blue Topaz, Opal Loose Gemstone
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

2.65 Carats SI Clarity Faceted Mint Green Tourmaline Asscher Cut Ring Gemstone
Located in Peshawar, PK
: Octagon Cut: Asscher Certficate: On Customer Demand Mint green tourmaline, a member of the vibrant
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Rare Pale Purple Natural Amethyst Gemstone, 24.70 Ct Asscher Cut for Pendant etc
Located in Peshawar, PK
GEMSTONE TYPE: Amethyst PIECE(S): 1 WEIGHT: 24.70 Carats SHAPE: Asscher Cut SIZE (MM): 17.69 x
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Amethyst

16.20 Carat Natural Faceted Golden Topaz Gemstone for Jewelry Making Asscher Cut
Located in Peshawar, PK
Gemstone Type : Topaz Weight : 16.20 Carats Dimensions: 12.7x12.8x11 mm Clarity : Clean Origin
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Topaz

Fabulous Apple Green Loose Peridot 4.05 Carats Peridot Gemstone for Ring Jewelry
Located in Bangkok, TH
: GEMSTONE TYPE: Fabulous Apple Green Loose Peridot WEIGHT: 4.05 carats DIMENSIONS: 9.7 x 9 x 6.1 mm CLARITY
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Peridot

1.37 Carat AAA Natural Pink Morganite Asher Cut Shape Loose Gemstone Jewelry
Located in New York, NY
, Aquamrine, Blue Topaz, Opal Loose Gemstone
Category

21st Century and Contemporary Mozambican Loose Gemstones

Materials

Morganite

2.24 Carat AAA Natural Pink Morganite Asher Cut Shape Loose Gemstone Jewelry
Located in New York, NY
, Aquamrine, Blue Topaz, Opal Loose Gemstone
Category

21st Century and Contemporary Mozambican Loose Gemstones

Materials

Morganite

2.50 Carat AAA Natural Pink Morganite Asher Cut Shape Loose Gemstone Jewelry
Located in New York, NY
, Aquamrine, Blue Topaz, Opal Loose Gemstone
Category

21st Century and Contemporary Mozambican Loose Gemstones

Materials

Morganite

  • 1
Get Updated with New Arrivals
Save "Loose Gemstones Asscher", and we’ll notify you when there are new listings in this category.

Loose Gemstones Asscher For Sale on 1stDibs

On 1stDibs, you can find the most appropriate loose gemstones asscher for your needs in our varied inventory. There have been many well-made iterations of the classic loose gemstones asscher over the years, but those made by Merkaba and Tamir are often thought to be among the most beautiful. Take a look at a loose gemstones asscher featuring morganite from our inventory today to add the perfect touch to your look. Today, if you’re looking for a asscher cut version of this piece and are unable to find the perfect match, our selection also includes alternatives. Finding a loose gemstones asscher for sale for women should be easy, but there are 14 pieces available to browse for unisex as well as men, too.

How Much is a Loose Gemstones Asscher?

On average, a loose gemstones asscher at 1stDibs sells for $800, while they’re typically $130 on the low end and $58,500 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.