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Gubelin Certified 9.14 Carat Ceylon No Heat Sapphire Diamond Gold Cocktail Ring
Located in Kowloon, HK
, Natural, Untreated
Discover an extraordinary blend of rarity, trust, and timeless beauty in this Gübelin
Category
2010s Cocktail Rings
Materials
Diamond, Sapphire, Gold, 18k Gold
1.65 Carat Natural Loose Sea Blue Aquamarine Oval Cut Madagascar
s Gemstone
Located in Bangkok, TH
choice for a bespoke ring, pendant, or fine jewelry creation. Untreated and natural, this gem embodies
Category
21st Century and Contemporary Malagasy Modern Loose Gemstones
Materials
Aquamarine
925 Sterling Silver Tanzanite Cubic zirconia Butterfly Ring Oval Cut Tanzanite
Located in New York, NY
, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering you the highest quality
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver, Silver
Natural Tanzanite 925 Sterling Silver 2.34 Cts Oval Cut Cockital Ring For Women
Located in New York, NY
our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100 percent
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver, Silver
Statement Tanzanite Marquise and Round Diamond Ring in 18K Gold Plated Jewelry
Located in New York, NY
our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100 percent
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver, 18k Gold
Five Stone Tanzanite Ring in Sterling Silver December Birthstone Stacking Ring
Located in New York, NY
, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering you the highest quality
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, White Gold, Sterling Silver, Silver
Oval Tanzanite and Cubic Zirconia Accent Ring in White Gold Cocktail Ring
Located in New York, NY
, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering you the highest quality
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver, White Gold, Silver
Genuine Blue‑Violet Tanzanite Ring • Engagement Promise Ring Gift For Wife
Located in New York, NY
only sell natural, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver, Silver
Natural AAA Oval Cut Tanzanite Ring • Sterling Silver • December Birthstone Ring
Located in New York, NY
, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering you the highest quality
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver
Genuine Blue‑Violet Oval Tanzanite Ring • Engagement Promise Ring • Gift for Her
Located in New York, NY
, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering you the highest quality
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver
2.90 Carat Natural Loose Umbalite Garnet Pair Cushion Cut Gemstone
Located in Peshawar, PK
fact that it is typically untreated, making each gem a natural treasure.
Category
21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones
Materials
Garnet
Certified 3.95ct Purplish Red spinel pair, top quality, precision cut spinels
Located in Singapore, SG
premium sealed packaging, making it an ideal gift for the discerning gem collector or jewelry enthusiast
Category
21st Century and Contemporary Singaporean Art Deco Loose Gemstones
Materials
Spinel, 18k Gold, White Gold
Natural Burmese Sapphire Tennis Bracelet Gold
By Emeralds Maravellous
Located in US
Natural Burma Untreated Multicolor Gem Line Bracelet
Multi-colored sapphires of 3.5mm -3.7mm (9.0
Category
21st Century and Contemporary American Contemporary Tennis Bracelets
Materials
Sapphire, 14k Gold, Rose Gold, White Gold, Yellow Gold, Gold
Edwardian Natural Tahtitan Pearl and Diamond Solitaire Ring, c.1910s
Located in London, GB
black pearl. The black pearl is 7mm in width and is certified as natural origin and untreated by The Gem
Category
Vintage 1910s British Edwardian Solitaire Rings
Materials
Diamond, Pearl, 18k Gold, Yellow Gold, Platinum
5.05 carats Loose Aquamarine Goshenite Emerald Cut Natural Pakistani Gemstone
Located in Bangkok, TH
aesthetic. This natural gem is untreated, preserving its authentic character, and makes a stunning choice
Category
21st Century and Contemporary Pakistani Modern Loose Gemstones
Materials
Aquamarine
$320 Sale Price
20% Off
Eighteen Karat Gold Sculptural Brooch with Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
collection.
Gems, natural, untreated:
Cushion cut green natural sapphire, 3.61 carats, 10x9.3 mm.
Fancy
Category
21st Century and Contemporary German Contemporary Brooches
Materials
Garnet, Rubelite, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire...
Rose Gold Cocktail Ring with Fourteen Carats Pink Sapphires and Spinel
By Polya Medvedeva Jewellery
Located in Berlin, DE
collection.
Gems, natural, untreated:
Cushion cut fancy pink sapphire, 6.63 carats, 12.4x10 mm.
Fancy
Category
21st Century and Contemporary German Contemporary Cocktail Rings
Materials
Garnet, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, Spinel, ...
Exceptional Rarity 5.00 Carat PEAGON
S BLOOD AWARD Mozambique Ruby GIA Certified
Located in Chicago, IL
rarest and most coveted ruby color in the world.
Certified by GIA, this ruby is completely untreated, a
Category
2010s American Contemporary Engagement Rings
Materials
Ruby, White Diamond, Diamond, Platinum
$240,000 Sale Price
20% Off
18 Karat Rose Gold Cluster Ring with 11 Carat Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
for Berlinale red carpet same year. It belongs to the limited edition collection.
Gems, natural
Category
21st Century and Contemporary German Contemporary Cluster Rings
Materials
Garnet, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, Spinel, ...
Eighteen Karat Gold Cocktail Ring with Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
limited edition collection.
Gems, natural, untreated:
Cushion cut green natural sapphire, 3.61 carats
Category
21st Century and Contemporary German Contemporary Cocktail Rings
Materials
Garnet, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, Spinel, ...
18 Karat Gold Cluster Brooch with 14 Carat Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
.
Gems, natural, untreated:
Cushion cut fancy pink sapphire, 6.63 carats, 12.4x10 mm.
Fancy cushion
Category
21st Century and Contemporary German Contemporary Brooches
Materials
Garnet, Rubelite, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire...
Bicolor Natural Tourmaline Ring, Pendant Loose Gemstone 6.20 Carat Emerald Cut
Located in Peshawar, PK
dual-tone hues and remarkable brilliance. Ethically sourced from Afghanistan, this untreated, 100
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$697 Sale Price
30% Off
Watermelon Bicolor Natural Tourmaline Ring Loose Gemstone 8.15 Carat Emerald Cut
Located in Peshawar, PK
untreated, 100% natural gem boasts impressive clarity—approximately 97% eye clean—making it a rare find for
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$2,789 Sale Price
30% Off
Bicolor Natural Tourmaline Ring Loose Gemstone 6.95 Ct Emerald Cut for Jewelry
Located in Peshawar, PK
. Ethically sourced from Afghanistan, this untreated, 100% natural gem boasts impressive clarity—approximately
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$1,740 Sale Price
30% Off
Bicolor Natural Tourmaline Ring, Pendant Loose Gemstone 12.65 Ct Emerald Cut
Located in Peshawar, PK
. Ethically sourced from Africa, this untreated, 100% natural gem boasts impressive clarity—approximately 90
Category
21st Century and Contemporary Malagasy Contemporary Loose Gemstones
Materials
Tourmaline
$2,479 Sale Price
30% Off
Rose Gold Cluster Ring with 14 Carats Pink Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
belongs to the limited edition collection.
Gems, natural, untreated:
Cushion cut fancy pink sapphire
Category
21st Century and Contemporary German Contemporary Cluster Rings
Materials
Garnet, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, Spinel, ...
Eighteen Karat Gold Cluster Ring with Sapphires and Paraiba Tourmalines
By Polya Medvedeva Jewellery
Located in Berlin, DE
collection.
Gems, natural, untreated:
Cushion cut fancy pink sapphire, 6.63 carats, 12.4x10 mm.
Fancy
Category
21st Century and Contemporary German Contemporary Cluster Rings
Materials
Garnet, Sapphire, Blue Sapphire, Pink Sapphire, Green Sapphire, Spinel, ...
Natural Blue Green Spinel Gemstone 6.49 carats / JupiterGem
Located in Los Angeles, CA
Madagascar, a renowned source for high-quality Spinel
Treatment: Untreated, preserving the gem's natural
Category
21st Century and Contemporary Malagasy Loose Gemstones
Materials
Spinel
Pear Cut Tanzanite Ring Vintage Ring Sterling Silver Engagement Ring Gift
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Engagement Rings
Materials
Tanzanite, Zircon, Rhodium, Sterling Silver
Natural Tanzanite and Round White CZ Rhodium Plated 925 Sterling Silver Earrings
Located in New York, NY
only sell natural, untreated Tanzanite stones. Our gems are 100 percent genuine and natural, offering
Category
21st Century and Contemporary Central American Art Deco Stud Earrings
Materials
Tanzanite, Zircon, Rhodium, Sterling Silver
Natural Tanzanite Octagon Stud Earrings in.925 Sterling Silver Wedding Earrings
Located in New York, NY
Silver, Silver Tanzanite Earrings, December Birthstone Studs
♥ Welcome to Blue Star Gems Our Joyful and
Category
21st Century and Contemporary Central American Modern Stud Earrings
Materials
Tanzanite, Zircon, Rhodium, Sterling Silver
Vibrant Pink Natural Tourmaline Loose Gemstones Lot 8.40 Ct Cushion Cut-Jewelry
Located in Peshawar, PK
alternatives. Each gem is untreated, ensuring authenticity and lasting value.
This lot includes three stones
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$439 Sale Price / set
20% Off
Vibrant Green Natural Tourmaline Ring Loose Gemstone 5.10 Ct Cushion Cut-Jewelry
Located in Peshawar, PK
jewelry design.
Weighing an impressive 5.10 carats, this gem measures 9.36 x 8.83 x 7.65 mm, offering
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$575 Sale Price
49% Off
Vivid Green Natural Emerald Ring Pendant Loose Gemstone 1.85Ct Octagon Cut-Jewel
Located in Peshawar, PK
, enhancing its inner glow and vibrant saturation.
Completely untreated and 100% natural, this gem is a rare
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Emerald
$599 Sale Price
20% Off
Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver
Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, Zircon, Sterling Silver
Solitaire Ring, AAA Round Tanzanite Ring, Alternative Engagement Ring, Gift Her
Located in New York, NY
December Birthstone Christmas Gift for wife
♥ Welcome to Blue Star Gems Our Joyful and Meaningful Jewelry
Category
21st Century and Contemporary Central American Art Deco Engagement Rings
Materials
Tanzanite, Rhodium, Sterling Silver
Deep Green Bluish Hue Natural Tourmaline Loose Gemstone 5.90Ct Cushion Cut Jewel
Located in Peshawar, PK
connoisseurs.
Ethically sourced from Africa, this untreated tourmaline reflects the gem’s pure and natural
Category
21st Century and Contemporary Malagasy Contemporary Loose Gemstones
Materials
Tourmaline
$1,185 Sale Price
40% Off
Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
White Diamond, Tanzanite, Sterling Silver
Natural Aquamarine 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
our shop, knowing that we only sell natural, untreated Aquamarine stones. Our gems are 100 percent
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
White Diamond, Tanzanite, Sterling Silver, Rhodium
Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
White Diamond, Tanzanite, Sterling Silver
GRS Certified 0.95 Carat Burmese Ruby No Heat Pigeon Blood Ring in 18k Gold
By Rewa Jewellery
Located in Bangkok, TH
. Natural and untreated, this vibrant gem boasts minor inclusions, a hallmark of its genuine Burmese origin
Category
2010s Thai Modern Solitaire Rings
Materials
Diamond, Ruby, 18k Gold, White Gold
Natural Green Tourmaline Ring, Pendant Loose Gemstones 5.30 Ct Emerald Cut-Jewel
Located in Peshawar, PK
, this stunning pair consists of two gems: a 2.50-carat piece measuring 11.27 x 5.69 x 4.20 mm and a 2.80
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$1,272 Sale Price
25% Off
Aquamarine Cross Pendant with White Zircon in Sterling Silver 2.71ct
Located in New York, NY
, knowing that we only sell natural, untreated Aquamarine stones. Our gems are 100 percent genuine and
Category
21st Century and Contemporary Central American Art Deco Pendant Necklaces
Materials
Aquamarine, Zircon, Rhodium, Silver, Sterling Silver
Santa Maria Aquamarine Pendant with White Zircon in Sterling Silver 2.63cts
Located in New York, NY
, knowing that we only sell natural, untreated Aquamarine stones. Our gems are 100 percent genuine and
Category
21st Century and Contemporary Central American Art Deco Pendant Necklaces
Materials
Aquamarine, Zircon, Rhodium, Silver, Sterling Silver
Round Tanzanite and Round White CZ Rhodium Plated 925 Sterling Silver 5.40 Cts
Located in New York, NY
.
You can buy confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones
Category
21st Century and Contemporary Central American Art Deco Drop Earrings
Materials
Tanzanite, Zircon, Silver, Sterling Silver, Rhodium
Real Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry
Located in New York, NY
Tanzanite Ring for Women, Bridesmaid Gift
♥ Welcome to Blue Star Gems Our Joyful and Meaningful Jewelry
At
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
White Diamond, Tanzanite, Yellow Gold, Sterling Silver
Natural Tanzanite 925 Sterling Silver Ring December Birthstone Jewelry Gift Her
Located in New York, NY
confidently from our shop, knowing that we only sell natural, untreated Tanzanite stones. Our gems are 100
Category
21st Century and Contemporary Central American Art Deco Bridal Rings
Materials
Tanzanite, White Diamond, Sterling Silver, Yellow Gold
GIA Certified Bi Colour Australian Sapphire 1.14ct Yellow Blue Heart Cut No Heat
Located in Birmingham, GB
Untreated Australian Bi Colour Sapphire Gemstone.
1.14 Carat unheated sapphire with a beautiful blue yellow
Category
21st Century and Contemporary British More Jewelry
Materials
Sapphire
Emilio Jewelry Certified 16.00 Carat Burma No Heat Earrings
By Emilio!
Located in New York, NY
New York’s iconic Fifth Avenue,
Featuring the kings of gems, a Burma Untreated No Heat Earring of Red
Category
21st Century and Contemporary Stud Earrings
Materials
Ruby
Pink, Green
Baby Pink Natural Tourmaline Loose Gemstones Lot 6.05 Ct-Jewelry
Located in Peshawar, PK
, bracelets, or other fine jewelry pieces. Each gem is untreated, preserving its 100% natural allure and
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$487 Sale Price
30% Off
Brownish Yellow Natural Sphene / Titanite Loose Gemstone Lot 10.10Ct Round-Jewel
Located in Peshawar, PK
character without compromising their radiance. Completely untreated, these gems retain their natural beauty
Category
21st Century and Contemporary Pakistani Contemporary Loose Gemstones
Materials
Other
$337 Sale Price / set
30% Off
Brownish Yellow Natural Sphene/Titanite Loose Gemstones Lot 13.70Ct Trillion Cut
Located in Peshawar, PK
compromising their radiance. Completely untreated, these gems retain their natural beauty and authenticity
Category
21st Century and Contemporary Pakistani Contemporary Loose Gemstones
Materials
Other
$272 Sale Price / set
30% Off
Brownish Yellow Natural Sphene/Titanite Loose Gemstones Lot 11.50 Ct Round-Jewel
Located in Peshawar, PK
without compromising their radiance. Completely untreated, these gems retain their natural beauty and
Category
21st Century and Contemporary Pakistani Contemporary Loose Gemstones
Materials
Other
$412 Sale Price / set
30% Off
Art Coral Flower Leaf Large Spray Brooch 18 KT gold
Located in Napoli, IT
Details Below
Metal: 18 kt yellow gold
Hallmarks: assay and maker
Gems: 6 natural untreated pink coral
Category
Mid-20th Century Italian Contemporary Brooches
Materials
Coral, 18k Gold
Brownish Yellow Natural Sphene/Titanite Loose Gemstones Lot 24.40 Ct Round-Jewel
Located in Peshawar, PK
without compromising their radiance. Completely untreated, these gems retain their natural beauty and
Category
21st Century and Contemporary Pakistani Contemporary Loose Gemstones
Materials
Other
$874 Sale Price / set
30% Off
Darkish Black-Blue Bicolor Natural Tourmaline Gemstones Set 4.90 Ct Emerald Cut
Located in Peshawar, PK
raw charm.
Sourced from Afghanistan, these gems remain untreated, retaining their natural state for
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$304 Sale Price / set
30% Off
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Untreated Gems For Sale on 1stDibs
There is a broad range of untreated gems for sale on 1stDibs. These distinct designs — crafted with great care and often made from gold, silver and 18k gold — can elevate any look. Find a collection of 76 vintage versions or 658 modern creations for a more contemporary example of these cherished accessories. Our collection is diverse and broad-ranging, and pieces in stock date back to the 18th Century while others were produced as recently as the 21st Century. Pieces in our collection of untreated gems made by Art Deco jewelers — as well as those associated with contemporary — are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Gems and Jewels UK, Polya Medvedeva Jewellery and Merkaba are consistently popular. Lovers of these pieces agree that it’s a versatile accessory, but a selection from our variety of 290 sapphire versions can add an especially stylish touch. A selection of oval cut, round cut and cushion cut can be found today on these pages. When shopping our range of untreated gems, you’ll find that there are less available pieces for men today than there are for women.
How Much are Untreated Gems?
Prices for untreated gems can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $34 and can go as high as $6,500,000, while untreated gems, on average, fetch $2,423.