No Heat Loose Stone
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GIA Certified No Heat Natural 18.18 Carats Blue Star Sapphire Loose Stone
By OGI Ltd
Located in New York, NY
A rare, investment quality GIA no heat, Ceylon Star Sapphire weighing 18..18 carats
Sapphire color
Category
20th Century Sri Lankan Contemporary Loose Gemstones
Materials
Sapphire, Blue Sapphire, Star Sapphire
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W 0.37 in D 0.27 in L 0.51 in
GIA Certified No Heat Natural Star Ruby Loose Stone Weighing 4.84 Carats
By OGI Ltd
Located in New York, NY
rigorous testing and evaluation by a reputable gemological laboratory. A "No Heat" designation means that
Category
20th Century Sri Lankan Contemporary Loose Gemstones
Materials
Ruby, Star Ruby
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W 0.35 in D 0.21 in L 0.43 in
No Heat Loose Burmese Round Sapphire Cts 8.76
Located in Hong Kong, HK
Its pristine beauty remains untouched by heat treatment.
This exquisite 8.76 ct gem is sourced
Category
2010s Hong Kong Contemporary Loose Gemstones
Materials
Sapphire
GRS Certified 5.94 Carat No Heat Vivid Orangy-Red Loose Ruby
Located in Miami, FL
to high carat stones with large depth, in which the carat weight is more hidden. The stone radiates
Category
2010s Mozambican Loose Gemstones
Materials
Ruby
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
1.66 Carat Natural No Heat Chrysoberyl Yellowish-Green stone
Located in Bangkok, TH
A breathtaking 1.66 Carat Chrysoberyl stone that is a gorgeous shade of yellowish green. The
Category
21st Century and Contemporary Loose Gemstones
Materials
Chrysoberyl
Purple Pink Sapphire, No Heat, Certified Gem, 4, 46 Ct., Loose Gemstone
Located in Kirschweiler, DE
Foundation for Gemstone Research (DSEF).
The stone has none treatment and no indication of heating!
gem
Category
21st Century and Contemporary German Contemporary Loose Gemstones
Materials
Pink Sapphire, Purple Sapphire
Certified 3.40 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Located in Jaipur, RJ
Certified 3.40 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.33 in D 0.18 in L 0.33 in
Certified 3.26 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Located in Jaipur, RJ
Certified 3.26 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.39 in D 0.11 in L 0.46 in
Certified 3.04 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Located in Jaipur, RJ
Certified 3.04 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.31 in D 0.12 in L 0.42 in
3.12Ct Oval No Heat Ruby
Located in New York, NY
A CDC certified lively red, Mozambique none treated oval ruby. This stone is VERY saturated and
Category
2010s Mozambican Loose Gemstones
Materials
Ruby
1.59 Carats Mozambique Ruby Top Quality Octagon Cut stone No Heat Natural Gem
Located in Jaipur, RJ
1.59 Carats Mozambique Ruby Top Quality Octagon Cut stone No Heat Natural Gem
Weight: 1.59 Carats
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
8.78 Carats Mozambique Ruby Top Quality Oval Cut stone No Heat Natural Gemstone
Located in Jaipur, RJ
8.78 Carats Mozambique Ruby Top Quality Oval Cut stone No Heat Natural Gemstone
Weight: 8.78
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.12 in L 0.16 in
8.25 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Located in Jaipur, RJ
8.25 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Weight: 8.25 Carats
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
Free Shipping
W 0.08 in L 0.1 in
2.16 Carats Mozambique Ruby Top Quality Baguette Cut stone No Heat Natural Gem
Located in Jaipur, RJ
2.16 Carats Mozambique Ruby Top Quality Baguette Cut stone No Heat Natural Gem
Weight: 2.16 Carats
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
2.63 Carats Mozambique Ruby Top Quality Pear Cut stone No Heat Natural Gemstone
Located in Jaipur, RJ
2.63 Carats Mozambique Ruby Top Quality Pear Cut stone No Heat Natural Gemstone
Weight: 2.63
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
2.79 Carats Mozambique Ruby Top Quality Baguette Cut stone No Heat Natural Gem
Located in Jaipur, RJ
2.79 Carats Mozambique Ruby Top Quality Baguette Cut stone No Heat Natural Gem
Weight: 2.79 Carats
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
2.60 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Located in Jaipur, RJ
2.60 Carats Mozambique Ruby Top Quality Princess Cut stone No Heat Natural Gem
Weight: 2.60 Carats
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.08 in L 0.12 in
3.59 Carats Mozambique Ruby Top Quality Heart Cut stone No Heat Natural Gemstone
Located in Jaipur, RJ
3.59 Carats Mozambique Ruby Top Quality Heart Cut stone No Heat Natural Gemstone
Weight: 3.59
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.08 in L 0.14 in
8.21 Carats Mozambique Ruby Top Quality Pear Cut stone No Heat Natural Gemstone
Located in Jaipur, RJ
8.21 Carats Mozambique Ruby Top Quality Pear Cut stone No Heat Natural Gemstone
Weight: 8.21
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
Certified 3.82 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.82 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.38 in D 0.12 in L 0.48 in
Certified 3.94 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.94 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.35 in D 0.18 in L 0.41 in
Certified 3.40 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.40 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.35 in D 0.13 in L 0.46 in
Certified 3.21 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.21 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.36 in D 0.13 in L 0.42 in
Certified 3.11 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.11 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.32 in D 0.14 in L 0.44 in
Certified 2.94 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 2.94 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.36 in D 0.1 in L 0.45 in
Certified 3.51 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Located in Jaipur, RJ
Certified 3.51 Carats Mozambique Ruby Oval Faceted Cut stone No Heat Natural Gem
Gemstone - Ruby
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.31 in D 0.17 in L 0.41 in
5.06Ct Ceylon No Heat Cushion Sapphire
Located in New York, NY
A AGL certified lively blue, Sri Lankan none treated cushion sapphire. This stone is completely
Category
2010s Sri Lankan Loose Gemstones
Materials
Sapphire
Certified 7.51 Carats Ruby Octagon Square Faceted Cut Stone No Heat Natural Gem
Located in Jaipur, RJ
: 14x3x13 MM
Pieces: 1
Shape: Faceted Square octagon Cut stone
Category
21st Century and Contemporary Mozambican Art Deco Loose Gemstones
Materials
Ruby
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W 0.52 in D 0.12 in L 0.56 in
11.03 Carats Burmese No-Heat Ruby Natural Oval Cut stone For Fine Jewelry Gem
Located in Jaipur, RJ
11.03 Carats Burmese No-Heat Ruby Natural Oval Cut stone For Fine Jewelry Gem
Weight: 11.03 Carats
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
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W 0.48 in L 0.62 in
No Heat 2 Oval Blue Sapphires 4.37cts
Located in Hong Kong, HK
certified as 'No Heat,' ensuring their natural beauty remains untouched by artificial enhancements.
Blue
Category
2010s Hong Kong Contemporary Loose Gemstones
Materials
Blue Sapphire
No Heat Pear Burma Ruby Carats 5.73
Located in Hong Kong, HK
No heat Pear Burma Ruby cts 5.73.
(Our code R 803)
A deep red stone of
Category
21st Century and Contemporary Hong Kong Contemporary Loose Gemstones
Materials
Ruby
Canary Yellow Sapphire 1.67 ct No Heat
Located in Bangkok, TH
untreated, so no heat treatment involved! Explore the natural beauty today.
Stone : Sapphire
Color: Canary
Category
2010s Sri Lankan Loose Gemstones
Materials
Yellow Sapphire
2.56 TCW Oval Ruby Burma No Heat
Located in New York, NY
ITEM DESCRIPTION
ID #: NYC57872
Stone Shape: Oval
Diamond Weight: 2.56 Carat
Measurements: 9.01 x
Category
21st Century and Contemporary American Modern Loose Gemstones
Materials
Ruby
8.71 Carats Burmese No-Heat Ruby Natural Oval Cut Stone For Top Fine Jewelry Gem
Located in Jaipur, RJ
8.71 Carats Burmese No-Heat Ruby Natural Oval Cut Stone For Top Fine Jewelry Gem
Weight: 8.71
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
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W 0.44 in L 0.58 in
15.61 Carat Burmese No-Heat Ruby Natural Oval Cut Stone For Top Fine Jewelry Gem
Located in Jaipur, RJ
15.61 Carat Burmese No-Heat Ruby Natural Oval Cut Stone For Top Fine Jewelry Gem
Weight: 15.61
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
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W 0.48 in L 0.63 in
13.01 Ct Cushion No Heat Ceylon Sapphire
Located in New York, NY
An AGL and CDC certified lively blue, Sri Lankan none treated cushion sapphire. This stone is very
Category
2010s Sri Lankan Loose Gemstones
Materials
Sapphire
Natural No Heat Beautiful Tanzanite 3.15 ct Peacock Color
Located in Bangkok, TH
Discover the allure of a stunning Tanzanite - a captivating no-heat step cushion gem with VVS
Category
2010s Tanzanian Loose Gemstones
Materials
Tanzanite
1 bid
No Reserve
W 0.3 in D 0.25 in L 0.35 in
2:52 Ct Natural No Heat Round Green Sapphire
Located in New York, NY
that is Also Natural No heat .
This stone is beautifully cut and has great color and clarity that adds
Category
2010s Malagasy Loose Gemstones
Materials
Green Sapphire
Cushion-Oval No Heat Burma Carats 5.46 with Certificate
Located in Hong Kong, HK
Cushion-Oval no heat Burma cts 5.46 with certificate
Category
21st Century and Contemporary Hong Kong Contemporary Loose Gemstones
Materials
Ruby
8.02 Carat Oval Ceylon No Heat Royal Blue Sapphire
Located in New York, NY
A GRS certified Royal blue, Sri Lankan oval sapphire. This stone is very saturated and cut to
Category
2010s Loose Gemstones
Materials
Blue Sapphire
GIA Certified 2.91 Carat Oval Light Pink No Heat Sapphire
Located in Los Angeles, CA
Amazing No Heat Pink Sapphire That is Out of This World!
Featuring a Light Pink Untreated Oval Shaped
Category
21st Century and Contemporary Loose Gemstones
Materials
Sapphire
GRS Certified No Heat Briolette Pear Yellow Sapphire Cts 31.44
Located in Hong Kong, HK
Embrace the warmth of the sun with our radiant GRS Certified No Heat Briolette Pear Yellow Sapphire
Category
2010s Hong Kong Contemporary Loose Gemstones
Materials
Yellow Sapphire
No Heat 2 Indian Pear-Shaped Buff Rubies Cts 20.22
Located in Hong Kong, HK
, untouched by heat treatments, exude a natural radiance that speaks of purity and authenticity.
These rubies
Category
2010s Asian Contemporary Loose Gemstones
Materials
Ruby
No-Heat 1.44 Carat Oval Cut Natural Ruby Pinkish-Red
Located in Bangkok, TH
measurements of the Ruby stone are 8.38 x 6.71 x 2.65mm
Rubies are known to signify passion, protection and
Category
21st Century and Contemporary Loose Gemstones
Materials
Ruby
No-Heat 1.78 Carat Oval Cut Natural Ruby Pigeon Blood
Located in Bangkok, TH
measurements of the Ruby stone are 7.80 x 6.52 x 4.25mm
Rubies are known to signify passion, protection and
Category
21st Century and Contemporary Loose Gemstones
Materials
Ruby
2.61ct No Heat Certified Sri Lanka Cornflower Blue Sapphire Oval Cut
By Valentina Fine Jewellery
Located in Sai Kung District, HK
Stunning natural certified Cornflower Blue sapphire, Oval Mix cut - NO HEAT.
The blue sapphire is
Category
2010s Loose Gemstones
Materials
Blue Sapphire
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W 0.36 in D 0.18 in L 0.3 in
2.50ct No Heat Certified Sri Lanka Cornflower Blue Sapphire Emerald Cut
By Valentina Fine Jewellery
Located in Sai Kung District, HK
Stunning natural certified Cornflower Blue sapphire, Emerald cut - NO HEAT.
The blue sapphire is
Category
2010s Loose Gemstones
Materials
Blue Sapphire, Emerald
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W 0.34 in D 0.16 in L 0.27 in
54.50 Carat Lot of exclusive Spinel 68 Pcs No Heat Gemstone
By Emeralds Maravellous
Located in US
incredible gemstones are available to purchase as loose stones or made to order, custom options are available
Category
21st Century and Contemporary Unknown Artisan Loose Gemstones
Materials
Spinel
0.94ct Green Yellow Australian Sapphire Untreated Oval Cut No Heat
By Gems and Jewels UK
Located in Birmingham, GB
and excellent clarity, a very clean stone.
Also has an excellent oval cut and ideal polish to show
Category
21st Century and Contemporary Loose Gemstones
Materials
Yellow Sapphire, Green Sapphire, Sapphire
4.82carat Natural Blue Sapphire loose Stone oval shape Blue Sapphire
Located in Delhi, DL
Certified no heat no treatment Natural oval shape 4.82carat Blue sapphire
Carat: 4.82 cts
Colour
Category
21st Century and Contemporary Sri Lankan Art Deco Loose Gemstones
Materials
Blue Sapphire
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W 0.36 in D 0.24 in L 0.4 in
GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire Weighing 17.16 carat
By OGI Ltd
Located in New York, NY
this sapphire is its lack of heat treatment. The absence of heat treatment ensures the stone's natural
Category
20th Century Sri Lankan Contemporary Loose Gemstones
Materials
Sapphire, Blue Sapphire
W 0.59 in D 0.39 in L 0.46 in
No Heat Brownish-Orange Rectangular Tourmaline Cts 11.01 with GRS Certificate
Located in Hong Kong, HK
and no heat treatment, so you can trust that you're investing in a truly unique and authentic gem
Category
2010s Hong Kong Contemporary Loose Gemstones
Materials
Tourmaline
Lotus Cert. 2.07 Carat Red Sapphire from East Africa No Heat
Located in Hua Hin, TH
2.07 carat red sapphire from East Africa
No Heat
Dimensions: 8.14 x 6.06 x 4.50 mm
Shape: Oval
Category
2010s African Loose Gemstones
Materials
Sapphire
Certified 1.20 Ct No heat Padparadscha Sapphire Ceylon Origin Ring Gemstone
Located in Makola, LK
of your choice can be made available on request.
All our Gemstones are natural earth mined stones
Category
21st Century and Contemporary Sri Lankan Modern Loose Gemstones
Materials
Diamond, Pink Diamond, Sapphire, Pink Sapphire, Padparadscha Sapphire
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H 0.18 in W 0.25 in L 0.33 in
Certified Natural No heat Blue Sapphire Ceylon Origin Gemstone 1.15 Ct
Located in Makola, LK
for producing exceptional quality stones. With its internally flawless clarity.
• Variety: Blue
Category
21st Century and Contemporary Sri Lankan Modern Loose Gemstones
Materials
Purple Sapphire, Blue Sapphire
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W 0.25 in D 0.17 in L 0.34 in
GIA Certified No Heat Natural Sapphire Origin Sri Lanka Weighing 2.80 Carat
By OGI Ltd
Located in New York, NY
No Indications of Heating
Item Description: One loose stone
Weight: 2.80 carats
Measurements: 9.06 x
Category
Vintage 1950s Sri Lankan Contemporary Loose Gemstones
Materials
Sapphire
W 0.21 in D 0.24 in L 0.36 in
Certified 22.51 Carats No Heat Burmese Ruby Oval Faceted Cutstone Natural Gem
Located in Jaipur, RJ
Very Rare Burmese Myanmar ruby no heat no treatment
Weight: 22.51 Carats
Size: 16x14.5x11 MM
Pieces
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
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W 0.58 in D 0.44 in L 0.63 in
Certified 9.58 Carats No Heat Burmese Ruby Round Faceted Cutstone Natural Gem
Located in Jaipur, RJ
Rare Burmese Myanmar ruby no heat no treatment
Weight: 9.58 Carats
Size: 11X9 MM
Pieces: 1
Shape
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
Free Shipping
W 0.36 in L 0.44 in
Certified 11.03 Carats No Heat Burmese Ruby Oval Faceted Cutstone Natural Gem
Located in Jaipur, RJ
Rare Burmese Myanmar ruby no heat no treatment
Weight: 11.03 Carats
Size: 15.5x12x6 MM
Pieces: 1
Category
21st Century and Contemporary Burmese Art Deco Loose Gemstones
Materials
Ruby
Free Shipping
W 0.48 in D 0.24 in L 0.62 in
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No Heat Loose Stone For Sale on 1stDibs
You are likely to find exactly the no heat loose stone you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from gold, white gold and 18k gold — can elevate any look. Find an antique version now, or shop for 12 vintage or 189 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a no heat loose stone 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. Finding an appealing no heat loose stone — no matter the origin — is easy, but OGI Ltd, Gems and Jewels UK and Harakh each produced a popular version that is worth a look. A no heat loose stone of any era or style can lend versatility to your look, but a version featuring ruby, from our inventory of 61, is particularly popular. See these pages for an oval cut iteration of this accessory, while there are also cushion cut cut and round cut cut versions available here, too. If you’re browsing our inventory for a no heat loose stone, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.
How Much is a No Heat Loose Stone?
On average, a no heat loose stone at 1stDibs sells for $1,800, while they’re typically $25 on the low end and $550,000 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.