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Untreated Parti Colour Sapphire 1.26ct GIA Certified Cushion Cut No Heat Gem
Located in Birmingham, GB
Untreated Parti Colour Sapphire 1.26ct GIA Certified Cushion Cut No Heat Gem GIA Certified
Category

21st Century and Contemporary British More Jewelry

Edwardian Platinum 3.7 Carat Sapphire Emerald Diamond Ring
Located in Banbury, GB
3.7carat no-heat gem-quality Ceylon sapphire with Gem Lab certification. SKU
Category

Vintage 1910s British Edwardian Engagement Rings

Materials

Diamond, Emerald, Sapphire, Platinum

Peter Suchy 2.10 Carat Cornflower Blue Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Emerald step cut natural no heat gem color Cornflower blue Sri Lanka sapphire engagement ring. GIA
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

Edwardian Platinum Sapphire and Diamond Ring
Located in Banbury, GB
8.52arat no heat gem-quality Ceylon sapphire with Gem And Pearl Lab certification. The elegant cushion-cut
Category

Vintage 1910s British Edwardian Engagement Rings

Materials

Diamond, Sapphire, Platinum

1.11Ct Lilac Pink Purple Sapphire GRA Certified Round Cut No Heat Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
1.11Ct Lilac Pink Purple Sapphire GRA Certified Round Cut No Heat Loose Gem Natural Lilac Pink
Category

21st Century and Contemporary More Jewelry

Materials

Purple Sapphire, Sapphire

GIA Certified Unique Orange Pink Unheated Sapphire 0.75ct Oval Cut Gem No Heat
By Gems and Jewels UK
Located in Birmingham, GB
GIA Certified Unique Orange Pink Unheated Sapphire 0.75ct Oval Cut Gem No Heat Unique Untreated
Category

20th Century More Jewelry

Materials

Sapphire

17.43 Ct Cabochon Burma No Heat Ruby GIA Ring
By Hakimi's Gem
Located in Chicago, IL
Absolutely stunning Cabochon Burma no heat ruby weighing 17.43 ct certified by GIA with marquise
Category

2010s Cocktail Rings

Materials

Ruby, Diamond, 18k Gold

18 Karat Rose Gold 13.82 Carat Natural No-Heat Ruby Tennis Bracelet
By Gems Paradise
Located in Jaipur, IN
18 Karat Rose Gold 13.82 Carat Natural No-Heat Ruby Tennis Bracelet This masterful piegon-blood
Category

2010s Indian Modern Tennis Bracelets

Materials

Ruby, Gold, 18k Gold, Rose Gold

Unheated Ruby Ring Gem 1.02 Carat Cushion No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Natural unheated 1.02 carat Ruby cushion gem, offered loose to a fine gemstone collector. Returns
Category

21st Century and Contemporary Mozambican Contemporary Loose Gemstones

Materials

Ruby

1.13 Carat Natural No Heat Burma Sapphire Platinum Solitaire Engagement Ring
By Gem and Honey
Located in New York, NY
A classic solitaire engagement ring by Gem + Honey, set with a rectangular, step-cut, natural (no
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Sapphire, Blue Sapphire, Platinum

GIA Certified 1.74 Carat Pear Sapphire Diamond Platinum Pendant Necklace
Located in Stamford, CT
chain. The GIA has certified the sapphire as natural, no heat. 1.74ct natural no heat gem pear shape
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, Platinum

41.73 Carats Burmese Sapphire Cabochon Sugarloaf No-Heat Top Quality Natural Gem
Located in Jaipur, RJ
41.73 Carats Burmese Sapphire Cabochon Sugarloaf No-Heat Top Quality Natural Gem Gemstone: Blue
Category

2010s Burmese Loose Gemstones

Materials

Sapphire, Blue Sapphire

16.41 Carats Burmese Blue Sapphire No Heat Round cabochon Natural sapphire gem
Located in Jaipur, RJ
Burmese Blue Sapphire Round for Fine Jewellery Gemstone: Blue Sapphire No Heat Type : Burmese
Category

2010s Burmese Loose Gemstones

Materials

Blue Sapphire

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

Unheated Ruby Ring Gem 2.09 Carat AGL Certified No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Exceedingly fine 2.09 carat natural, no heat Ruby oval gem, offered loose to a sophisticated
Category

21st Century and Contemporary Mozambican Contemporary Engagement Rings

Materials

Ruby

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

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

Certified 9.55 Carats No Heat Burmese Ruby Oval Faceted Cutstone Natural Gem
Located in Jaipur, RJ
Rare Burmese Myanmar ruby no heat no treatment Shape: Roundish Oval Weight: 9.55 Carats Size: 10x9
Category

21st Century and Contemporary Burmese Art Deco Loose Gemstones

Materials

Ruby

Massimo Pinardi Gems_Hunter 3.21 carat Ruby Ring Pigeon Blood No Heat
Located in Milano, IT
GEM quality 3,21 ct Ruby setted in a Platinum and Yellow hand crafted in Italy mounting, surrounded
Category

2010s Italian Solitaire Rings

Materials

Ruby, Diamond, Yellow Gold, 18k Gold, Platinum

GIA 9.10 Carat Natural Gem No Heat Sapphire Diamond Ring Cocktail Unheated
Located in New York, NY
The No Heat & Prime Origin. GIA 4.32ct. Natural Sapphire Full cut brilliant Oval cut Clean VS
Category

2010s American Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Unheated Sapphire Ring Gem 6 Carat No Heat Ceylon Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
unmounted to the world's most sophisticated gem collectors. This gem is exceptional on all levels. The
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

Unheated Ceylon Yellow Sapphire Ring Gem 5.56 Carat No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
gem collectors. AGTA (American Gem Trade Association) gem certificate is attached to the images for
Category

21st Century and Contemporary Sri Lankan Contemporary Engagement Rings

Materials

Sapphire, Yellow Sapphire

270.70 Carats Blue Sapphire Beaded gem Quality Necklace no heat burmese sapphire
Located in Jaipur, RJ
Sapphire Beaded Jewelry Necklace Rondelle Beads Gem quality Size : 4 To 7 MM Weight : 270.70
Category

2010s Burmese Beaded Necklaces

Materials

Blue Sapphire

Purple Pink Sapphire, No Heat, Certified Gem, 4, 46 Ct., Loose Gemstone
Located in Kirschweiler, DE
exclusive collection. This beautiful gem has a intense purple-pink color and a great fire. Cutting
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Pink Sapphire, Purple Sapphire

Unheated Padparadscha Sapphire Ring Gem No Heat Ceylon 4 Carat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
, offered loose to avid gem collectors globally. GIA report attached to the image selection for your
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Padparadscha Sapphire , Sapphire

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

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

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

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

2.16 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

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

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

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

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

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

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

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

0.94ct Green Yellow Australian Sapphire Untreated Oval Cut No Heat
By Gems and Jewels UK
Located in Birmingham, GB
Fine Natural Yellow Green Sapphire Gemstone. 0.94 Carat with a beautiful vivid green yellow colour and excellent clarity, a very clean stone. Also has an excellent oval cut and ide...
Category

21st Century and Contemporary Loose Gemstones

Materials

Yellow Sapphire, Green Sapphire, Sapphire

18.52 Carats Burmese No-Heat Ruby Natural Sugarloaf For Top Fine Jewelry Gem
Located in Jaipur, RJ
18.52 Carats Burmese No-Heat Ruby Natural Sugarloaf For Top Fine Jewelry Gem Weight: 18.52 Carats
Category

21st Century and Contemporary Burmese Art Deco Loose Gemstones

Materials

Ruby

17.18 Carats Mozambique No-Heat Ruby Natural Oval Cutstone For Fine Jewelry Gem
Located in Jaipur, RJ
17.18 Carats Mozambique No-Heat Ruby Natural Oval Cut stone For Fine Jewelry Gem Weight: 17.18
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.24 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.24 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.18 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.18 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.64 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.64 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 7.50 Carats Mozambique Ruby Pear Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 7.5 Carats Size: 17x5...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 2.84 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.84 Carats Size: 9x7...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 2.13 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.13 Carats Size: 9x7...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 1.94 Carats Mozambique Ruby Pear Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 1.94 Carats Size: 9x6...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 1.48 Carats Mozambique Ruby Pear Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 1.48 Carats Size: 10....
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 1.69 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 1.69 Carats Size: 8x6...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 5.27 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 5.27 Carats Size: 14x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.30 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.30 Carats Size: 9.5...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 2.41 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.41 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.16 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.16 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 2.89 Carats Mozambique Ruby Pear Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.89 Carats Size: 11x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 3.75 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 3.75 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 2.41 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.41 Carats Size: 10x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

166.10 Carats Mozambique Ruby No Heat Beads Top Fine gemstones Natural Gems
Located in Jaipur, RJ
Weight: 166.10 Carats Size: 3 To 5 MM Shape: Beads Quantity - 7 Line
Category

21st Century and Contemporary Mozambican Art Deco Drop Necklaces

Materials

Ruby

184.50 Carats Mozambique Ruby No Heat Drops Top Fine gemstones Natural Gems
Located in Jaipur, RJ
Weight: 184.50 Carats Size: 2x3 To 5x3 MM Shape: Drops Quantity - 6 Line
Category

21st Century and Contemporary Mozambican Art Deco Drop Necklaces

Materials

Ruby

Certified 5.10 Carats Mozambique Ruby Round Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 5.10 Carats Size: 11x...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

Certified 12.10 Carats Mozambique Ruby Octagon Faceted Cuts No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 12.10 Carats Size: 19...
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

Materials

Ruby

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No Heat Gems For Sale on 1stDibs

There is a broad range of no heat gems for sale on 1stDibs. Frequently made of Gold, Platinum and 18k Gold, these items were constructed with great care. Our selection of items includes 5 vintage examples as well as 34 contemporary versions. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 19th Century to those produced as recently as the 21st Century. There are many different pieces in our collection of no heat gems to choose from, but Contemporary and Modern no heat gems are of considerable interest. Merkaba, Gem and Honey and Tamir each produced beautiful examples of these items that are worth considering. Many pieces in our collection are stylish for most occasions, but Sapphire versions, from our inventory of 29, can add a particularly distinctive touch to your look, day or night. A selection of oval cut, cushion cut and cabochon can be found today on these pages. There aren’t many items for men in our collection of no heat gems, as most of the options available are for women.

How Much are No Heat Gems?

Prices for no heat gems start at $1,310 and top out at $72,000 with these rings, on average, selling for $12,570.
Questions About No Heat Gems
  • 1stDibs ExpertApril 5, 2022
    A no-heat sapphire is a sapphire gemstone in its natural state. It differs from sapphires that undergo heat treatment to enhance their surface. Generally, no-heat sapphires are smoother, while heated sapphires are harder and more lustrous. Shop a range of sapphire gemstone jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    The rarest gem is painite. Since its discovery in 1951, there have only been two specimens known to exist.
  • 1stDibs ExpertMarch 22, 2022
    Yes, sapphires conduct heat. In fact, a real one won't melt until it reaches a temperature of 3,711 degrees F. As a result, one way that experts test sapphires to determine if they are real is to heat them to high temperatures. Find a collection of sapphire gemstone jewelry on 1stDibs.
  • 1stDibs ExpertMarch 31, 2023
    There is no single mug type or brand of mugs that holds heat best. While materials do play a role in determining how well mugs hold hot beverages at temperature, other factors like whether the metal is insulated, how well the mug is crafted and how tightly the lid fits also have an impact. Find an assortment of mugs on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Yes, Burmese rubies are heat treated. Most rubies are heat treated directly at the mines because the treatment enhances the value and quality of the ruby. Shop a wide collection of Burmese ruby pieces as well as other fine jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Whether or not terracotta pots can withstand heat depends on how well they are made and cared for. A finely crafted pot can usually hold up in the face of high temperatures. If you intend to cook with one, season it with cooking oil to increase its durability. Shop a collection of terracotta pots on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    No, not all fireplaces need a heat shield. However, a heat shield can enhance the visual appearance of the space while also protecting the room. Carefully measure your fireplace to ensure the best fit. Shop a wide range of heat shields and fireplace inserts on 1stDibs.
  • A heated ruby is a ruby wherein 1600 - 1700 degrees centigrade of heat is applied to the stone to improve it's color, luster, and/or clarity. This is a common method for most rubies is not a bad at all. What makes unheated rubies valuable is their rarity. To find a beautiful ruby that does not need heat to improve it's beauty is very rare and highly unlikely.
  • 1stDibs ExpertApril 5, 2022
    Yes, the cobalt spinel gem is extremely rare and is one of the most desirable gems in the industry. It is found in a single mine in Vietnam and is one of the few gems that occur naturally. Shop a collection of expertly vetted gems from some of the world’s top sellers on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Yes, natural star sapphires are real gems. The star-like reflective effect comes from inclusions present in the gemstones. Keep in mind that some jewelry features man-made star sapphires rather than natural stones, making it important that you purchase from reputable jewelers or online platforms. On 1stDibs, shop a variety of expertly vetted star sapphire gemstone jewelry.