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Heart Cut Loose

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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

Fine Green Colour Australian Sapphire 1.20ct Heart Cut Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
Fine Green Colour Australian Sapphire 1.20ct Heart Cut Loose Gemstone 7.2x5.5mm Natural Green
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Green Sapphire

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

GRA Certified 1.17ct Blue Sapphire Untreated Heart Cut Loose Rare Gem
Located in Birmingham, GB
GRA Certified 1.17ct Blue Sapphire Untreated Heart Cut Loose Rare Gem 7.1x6mm GRA Certified
Category

21st Century and Contemporary British Loose Gemstones

Materials

Blue Sapphire

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 3.08ct Deep Blue Natural Sapphire Heart Cut Loose Rare Gemstone
Located in Birmingham, GB
Fine 3.08ct Deep Blue Natural Sapphire Heart Cut Loose Rare Gemstone 9.2x8mm Natural Deep Blue
Category

21st Century and Contemporary British Loose Gemstones

Materials

Blue Sapphire, Sapphire

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 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

Fine Vivid Green Colour Sapphire 0.79ct Heart Cut Loose Gemstone 6x4.8mm VVS
By Gems and Jewels UK
Located in Birmingham, GB
Fine Vivid Green Colour Sapphire 0.79ct Heart Cut Loose Gemstone 6x4.8mm VVS Natural Green
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Green Sapphire

Untreated Natural Sapphire 1.16ct Fine Green Blue Teal Heart Cut Loose Gem VS
By Gems and Jewels UK
Located in Birmingham, GB
Untreated Natural Sapphire 1.16ct Fine Green Blue Teal Heart Cut Loose Gem VS Natural Untreated
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire

Natural 1.16Ct Deep Red Ruby Heart Cut Loose Rare Gemstone 6.5x6mm
By Gems and Jewels UK
Located in Birmingham, GB
Natural 1.16Ct Deep Red Ruby Heart Cut Loose Rare Gemstone 6.5x6mm Fine Natural Deep Red Heart Cut
Category

21st Century and Contemporary More Jewelry

Loose Sapphire, Heart Cut 1.65 Carat Blue Solitaire
Located in Greensboro, NC
Weight: 1.65ct Treatment: Heating Cut: Heart Color: Blue Dimensions (mm): 7.67 x 8.03 x 3.68
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Sapphire

1.18ct Fine Deep Purple Sapphire Heart Cut Rare Loose Cut Gem
Located in Birmingham, GB
1.18ct Fine Deep Purple Sapphire Heart Cut Rare Loose Cut Gem 6.8x5.3mm Natural Deep Purple
Category

21st Century and Contemporary British Loose Gemstones

Materials

Sapphire, Purple Sapphire

Fine Deep Blue Australian Sapphire 2.31ct Heart Cut Rare Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
excellent clarity, a very clean stone. Also has an excellent heart cut and ideal polish to show great shine
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire

Silvery Gray Burmese Spinel 2.60 carats Heart Cut Natural Loose Gemstone
Located in Bangkok, TH
Included) Origin Burma Shape Heart Cut Heart Discover the enchanting allure of this Silvery Gray
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

10.20 Carat Natural Emerald Heart Cabochon Sugarloaf Unique Cut Loose Gemstone
Located in New York, NY
DETAILS Emerald Weight: 10.20 CT Measurements: 15.2 x 12.2 x 9 mm Shape: Heart Cabochon Color
Category

21st Century and Contemporary American Artisan Loose Gemstones

Materials

Emerald

1.01 Carat Loose F / VVS2 Heart Shaped Cut Diamond GIA Certified
Located in Sherman Oaks, CA
Diamond General Info Diamond Cut: Heart Brilliant Measurements: 6.86 x 6.32 - 3.52 mm GIA
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

2.69 Carats Loose Chrome Tourmaline Heart Cut Stone Natural African Gemstone
Located in Bangkok, TH
Heart Cut Heart The exquisite Chrome Tourmaline is a natural African gemstone that captivates with
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Tourmaline, Chrome Tourmaline

Fine Deep Green Colour Sapphire 1.26ct Heart Cut Rare Loose Gemstone 6.7x6.6mm
Located in Birmingham, GB
Fine Deep Green Colour Sapphire 1.26ct Heart Cut Rare Loose Gemstone 6.7x6.6mm Natural Green
Category

21st Century and Contemporary British Loose Gemstones

Materials

Sapphire

Huge Loose GIA certified heart brilliant diamond 4.57ct
Located in Boca Raton, FL
Cut: Heart Brilliant Carat: 4.57ct Clarity: SI1 Item: T42000 Certificate of authenticity comes with
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Heart .63ct GIA K I1 Solitaire
Located in Greensboro, NC
Carat: .63ct Cut: Heart Color: K Clarity: I1 Certified by: GIA Report Number: 5222931626
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

1.25 Carat Loose Stone Emerald Heart Shape Brazil
By ALPENGEM
Located in Territet, CH
Extremely nice color beautiful Emerald 💚 Heart shape. Origin BRAZIL Minor oil enhancement
Category

2010s Brazilian Loose Gemstones

Materials

Emerald

Aquamarine Heart Shape Gem 8.39 Carat Loose Stone
By Margherita Burgener
Located in Valenza , IT
Loose aquamarine in heart shape, mixed cut. The aquamarine weights is 8.39 carats. Origin Brazil
Category

21st Century and Contemporary Italian Modern Loose Gemstones

Materials

Aquamarine

Aquamarine Heart Shape Gem 8.39 Carat Loose Stone
Aquamarine Heart Shape Gem 8.39 Carat Loose Stone
Free Shipping
W 0.63 in D 0.31 in L 0.45 in
GIA certified fancy light pink heart diamond loose 1.03ct
Located in Boca Raton, FL
Natural Color Diamond: Color: Fancy Light Pink Cut: Heart Brilliant Carat: 1.03ct Clarity: I1
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, Pink Diamond

Royal Blue Sapphire 1.58 Ct Heart Natural Heated, Loose Gemstone
Located in South Melbourne, AU
W x D (mm): 7.35 x 6.55 x 4.46 Cut: Heart Mixed Cut Clarity: Eye Clean Treatment: Heated Certified
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

1.00 Carat Loose G / VS2 Heart Shaped Diamond GIA Certified
Located in Sherman Oaks, CA
1.00 Carat Loose G / VS2 Heart Shaped Diamond GIA Certified Diamond General Info GIA Report Number
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.00 Carat Loose G / VS2 Heart Shaped Diamond GIA Certified
1.00 Carat Loose G / VS2 Heart Shaped Diamond GIA Certified
Free Shipping
W 0.27 in D 0.12 in L 0.3 in
Vivid Pink Sapphire 2.58 Ct Heart Natural Ceylon, Loose Gemstone
Located in South Melbourne, AU
W x D (mm): 8.78 x 7.73 x 5.10 Cut: Heart Mixed Cut Clarity: Eye Clean Treatment: Certified Heated
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

2.00 Carat Heart Shaped Ruby, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This heart-shaped ruby weighs exactly 2.00 carats and has beautifully rich, saturated color! It
Category

21st Century and Contemporary Thai Artisan Loose Gemstones

Materials

Ruby

Opal Stone 17.23 Carat Heart Shape Natural Ethiopian Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Natural 17.23 Carat Ethiopian Opal loose gemstone, offered unmounted to someone very special
Category

21st Century and Contemporary Ethiopian Contemporary Loose Gemstones

Materials

Opal

14.07 Carats Heart Shaped Red Loose Garnet Stone Natural Tanzanian Gemstone
Located in Bangkok, TH
clean Shape heart Cut heart The 14.07 carats Heart Shaped Red Garnet is a mesmerizing natural
Category

21st Century and Contemporary Tanzanian Modern Loose Gemstones

Materials

Garnet

6.00 Carats Heart Shaped Loose Pinkish Red Garnet Natural Madagascar's Gemstone
Located in Bangkok, TH
Shape heart Cut heart The 6.00 carats Heart Shaped Red Garnet from Madagascar is a stunning
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet

19.24 Carat AAA Natural Pink Morganite Heart Shape Loose Gemstone Jewelry
Located in New York, NY
SKU - 50015 Stone : Natural pink morganite Shape : Heart Clarity - Eye clean Grade - AAA Weight
Category

21st Century and Contemporary Mozambican Loose Gemstones

Materials

Morganite

5.15 carats Fine Quality Loose Sphene Stone Heart Shaped Madagascar's Gemstone
Located in Bangkok, TH
Shape heart Cut Heart The 5.15-carat Sphene stone, elegantly fashioned into a heart shape
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Beryl

4.50 carats Fine Quality Loose Sphene Stone Heart Shaped Madagascar's Gemstone
Located in Bangkok, TH
Weight 4.50 carats Dim 11.4x10.2x6 mm Clarity VVS Origin Madagascar Treatment None Shape heart Cut
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Beryl

8.0 Carat Natural Loose Imperial Color Citrine Heart Shape Gemstone
Located in Peshawar, PK
: Brazil Color: Yellow Imperial Shape: Heart Certificate: On Demand Month: November . The Many Healing
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Citrine

8.0 Carat Natural Loose Imperial Color Citrine Heart Shape Gemstone
8.0 Carat Natural Loose Imperial Color Citrine Heart Shape Gemstone
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H 0.49 in W 0.51 in D 0.38 in L 0.49 in
Heart Shaped Rhodolite Loose Garnet Stone 3.50 Carats Natural Malawi Gemstone
Located in Bangkok, TH
Clean Cut Mix Step cut Behold the captivating allure of a 3.50-carat Heart Shaped Rhodolite Loose
Category

21st Century and Contemporary Malawian Art Deco Loose Gemstones

Materials

Garnet, Rhodolite

Heart Shaped Loose Tanzanite Set No Reviews 4.80 Carats '1.20 Carat Each'
Located in Bangkok, TH
CLARITY Eye Clean CUT Faceted Heart SHAPE Heart ORIGIN Tanzania TREATMENT Heated CERTIFICATE Available
Category

21st Century and Contemporary Unknown Modern Loose Gemstones

Materials

Tanzanite

Captivating 1 carat Heart Cut Brilliant Diamond
Located in רמת גן, IL
Natural cut Heart diamond in a 1 carat G VVS1 cut. This diamond comes with GIA Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Small 1.05 Carats Natural Loose Purplish Pink Rhodolite Garnet Heart Shape
Located in Peshawar, PK
Loose Rhodolite Garneg Weight: 1.05 Carats Dimension: 6.4x6.9x3.6 Mm Origin: Tanzania Shape
Category

2010s Tanzanian Aesthetic Movement Loose Gemstones

Materials

Garnet, Rhodolite

Sparkling 1 Carat Heart Brilliant Cut Diamond
Located in רמת גן, IL
This stunning diamond features a 1 carat heart brilliant cut diamond with a D color, IF clarity
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified Heart 1.00 Total Carat Weight Natural Loose Yellow & Pink Diamonds
Located in רמת גן, IL
Shape and Cut: Heart Modified Brilliant Carat Weight: 0.50 Carat Clarity: VS1 Measurements
Category

2010s Modern Loose Gemstones

Materials

Pink Diamond, Yellow Diamond

26.60 Carats Heart Shaped Loose Red Garnet Lot Madagascar's Gemstone (In Box)
Located in Bangkok, TH
Cut heart step cut The 14.07 carats Heart Shaped Red Garnet is a mesmerizing natural Tanzanian
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Garnet

17.70 Carat Natural Loose Ametrine Heart Shape Gem For Necklace Jewellery
Located in Peshawar, PK
& Yellow Shape: Heart Treatment: Non Certficate: On Demand . Ametrine is a unique and captivating gemstone
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Other

10.70 Carat Adorable Loose Blue Topaz Heart Shape Gem For Necklace
Located in Peshawar, PK
Loose Blue Topaz Weight: 10.70 Carats Dimension: 12.4 x 13.7 x 9.5 Mm Origin: Brazil Colour: Blue
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Blue Topaz

11.40 Carat AAA Quality Heart Shape Loose Ametrine Gemstone from Bolivia
Located in Peshawar, PK
& Yellow Clarity: Loupe Clean Certificate: On Demand Shape: Heart For those born in the month of February
Category

21st Century and Contemporary Bolivian Arts and Crafts Loose Gemstones

Materials

Amethyst, Citrine

11.40 Carat AAA Quality Heart Shape Loose Ametrine Gemstone from Bolivia
11.40 Carat AAA Quality Heart Shape Loose Ametrine Gemstone from Bolivia
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H 0.62 in W 0.66 in D 0.37 in L 0.62 in
0.58 Carat Light Pink Heart Cut Diamond GIA Certified
Located in Kowloon, HK
jewelry. It is characterized by its distinctive silhouette, which resembles a symmetrical heart. The cut
Category

2010s Asian Loose Gemstones

Materials

Diamond

0.58 Carat Light Pink Heart Cut Diamond GIA Certified
0.58 Carat Light Pink Heart Cut Diamond GIA Certified
Free Shipping
H 0.13 in W 0.23 in L 0.21 in
5.90 Carat Sublime Quality Natural Loose Sphene Titanite Fire Effect Heart Shape
Located in Peshawar, PK
Loose Sphene Weight: 5.90 Carats Dimension: 10.2 x 11.4 x 7.5 Mm Origin: Warsak Pakistan Shape
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Other

1.01 Carat Heart cut diamond SI1 Clarity GIA Certified
Located in Kowloon, HK
***100% NATURAL FANCY COLOUR DIAMOND*** ✪ Diamond Details ✪ ➛ Shape: Heart ➛ Colour Grade: W-X
Category

2010s Asian Loose Gemstones

Materials

Diamond

1.01 Carat Heart cut diamond SI1 Clarity GIA Certified
1.01 Carat Heart cut diamond SI1 Clarity GIA Certified
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H 0.14 in W 0.25 in L 0.24 in
1pc Gliterring 1.01 Heart Brilliant Cut Natural Diamond
Located in רמת גן, IL
This stunning heart brilliant cut diamond is a rare and valuable gem. It is perfectly cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

HRD Certified 0.50ct Heart-Cut Diamond Valentine's Day
Located in Esch-Sur-Alzette, LU
The HRD Certified 0.50ct Heart-Cut Diamond is a breathtaking and romantic gemstone, perfect for
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Diamond

1.80 Carat Loose Mint Green Tourmaline Gemstone Heart Shape from Afghan Mines
Located in Peshawar, PK
Afghanistan Clarity : Eye Clean Shape: Heart Color: Mint Green Certificate: On Demand Basically, mint
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Captivating 2.04ct Ideal Cut Heart-Shaped Diamond - GIA Certified
Located in רמת גן, IL
Captivating 2.04ct Ideal Cut Heart-Shaped Diamond - GIA Certified Discover a stunning 2.04-carat
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Captivating 0.79ct Ideal Cut Heart Shaped Diamond - GIA Certified
Located in רמת גן, IL
Captivating 0.79ct Ideal Cut Heart Shaped Diamond - GIA Certified Celebrate love with this
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Captivating 0.90ct Ideal Cut Heart-Shaped Diamond - GIA Certified
Located in רמת גן, IL
Captivating 0.90ct Ideal Cut Heart-Shaped Diamond - GIA Certified This stunning diamond boasts a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Lovely 3.01ct Ideal Cut Heart-Shaped Diamond - GIA Certified
Located in רמת גן, IL
Lovely 3.01ct Ideal Cut Heart-Shaped Diamond - GIA Certified This magnificent 3.01-carat heart
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Adorable 5.25 Carats Natural Loose Heart Shape Dark Purple Amethyst Gem For Ring
Located in Peshawar, PK
Loose Amethyst Weight: 5.25 Carats Dimension: 11.7 x 12.1 x 7.6 Mm Origin: Brazil Treatment: Non
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Amethyst

IGL Certified 1.00ct Heart Cut Thai Ruby, 6.00x5.37x3.22 mm
Located in เกาะสมุย, TH
space for intricate and creative jewelry designs. Purplish-red color heart cut Thai ruby with IGL lab
Category

21st Century and Contemporary Thai Loose Gemstones

Materials

Ruby

IGL Certified 1.00ct Heart Cut Thai Ruby, 6.00x5.37x3.22 mm
IGL Certified 1.00ct Heart Cut Thai Ruby, 6.00x5.37x3.22 mm
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H 0.22 in W 0.24 in D 0.13 in
0.84 Carat Fancy Yellow Heart Cut Diamond VS1 Clarity GIA Certified
Located in Kowloon, HK
diamonds, it can vary in size, color, clarity, and cut quality. Heart-shaped diamonds symbolize love and
Category

2010s Asian Loose Gemstones

Materials

Diamond

1.00-CARAT, FANCY YELLOW, HEART CUT DIAMOND VS2 Clarity GIA Certified
Located in Kowloon, HK
*100% NATURAL FANCY COLOUR DIAMOND* ✪ Diamond Details ✪ ➛ Shape: Heart ➛ Colour Grade: Fancy
Category

2010s Asian Loose Gemstones

Materials

Diamond

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Heart Cut Loose For Sale on 1stDibs

On 1stDibs, you can find the most appropriate heart cut loose for your needs in our varied inventory. You can easily find a 1 antique edition and 41 modern creations to choose from as well. Making the right choice when shopping for a heart cut loose may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. There have been many well-made iterations of the classic heart cut loose over the years, but those made by Gems and Jewels UK, TJD and ALPENGEM are often thought to be among the most beautiful. A heart cut loose of any era or style can lend versatility to your look, but a version featuring sapphire, from our inventory of 24, is particularly popular. Today, if you’re looking for a heart cut version of this piece and are unable to find the perfect match, our selection also includes alternatives. Finding a heart cut loose for sale for women should be easy, but there are 37 pieces available to browse for unisex as well as men, too.

How Much is a Heart Cut Loose?

The price for a heart cut loose starts at $62 and tops out at $95,000 with these more-jewelry-watches, on average, selling for $250.

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.