What is a no-heat sapphire?

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.

What is a spinel ring?

A spinel ring is a ring that holds a spinel gemstone. This gemstone is hard enough to withstand everyday wear and adored for its brilliance. One can find a spinel gemstone in a variety of colors such as pink, purple, black, and red.

What is a pink spinel?

Pink spinel stones are rare gemstones that can be found in many colors, including light pink and deep pink. The name comes from their trademark shade of rosy-pink hues — a range that includes everything from violet to neon. Find a collection of vintage and designer pink spinel jewelry on 1stDibs today.

What is a spinel diamond?

Spinels are a type of gemstone made of magnesium illuminate and colored from chromium and iron. These gemstones form crystals that are very similar to diamonds and can be found in a variety of different colors. Although they are more rare than most other gemstones, spinels are usually less expensive and so “imitate” other gems, such as rubies.

What is cobalt spinel?

Cobalt blue spinels are the rarest and most valued type of spinel gemstone. They’re very popular in the modern gem industry and sought after by collectors. On 1stDibs, you’ll find a collection of cobalt spinel jewelry from some of the world’s top sellers.

Do sapphires conduct heat?

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.

How can I identify a cobalt Spinel?

True cobalt Spinel have a high-quality blue coloring that won’t glow under a UV light. For detailed analysis, consult a jeweler. Shop a collection of expertly-vetted cobalt spinel jewelry from some of the world’s top sellers on 1stDibs.

Why is cobalt spinel expensive?

Cobalt spinel is typically an expensive gemstone because it is rare. The gemstones feature a highly saturated blue color that sets them apart from other varieties of spinel. You can shop a selection of cobalt spinel gemstone jewelry on 1stDibs.

Is a red spinel valuable?

Red spinels are the most valuable hue of spinels. Red and pink spinel gems are also known as Burmese spinels. Because natural spinels are difficult to find they are not often promoted, however they’re highly coveted by collectors because unlike rubies, spinels are never heat treated. Shop a selection of spinel jewelry from some of the world’s top sellers on 1stDibs.

Can terracotta pots withstand heat?

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.

Do fireplaces need a heat shield?

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.

What is the difference between heated and unheated Ruby?

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Are Burmese rubies heat treated?

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.

Which mugs hold heat best?

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.

Is a cobalt spinel gem rare?

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.

No Heat Spinel

Red Spinel Diamond Ring

Pink Burma Spinel

Burmese Spinel

18k White Gold No Heat Spinel Necklace

$5,500

18k White Gold No Heat Spinel Necklace

Located in Hong Kong, HK

The 18k White Gold No Heat Spinel Necklace is a priceless find that will add classic elegance to your neck thanks to its fascinating beauty, deep history, and timeless meaning.

Category

2010s Hong Kong Contemporary Beaded Necklaces

Materials

Spinel, White Gold

GIA Certified Natural No Heat Spinel 3.86ct Diamonds Cluster Ring 14Kt*

$30,000

GIA Certified Natural No Heat Spinel 3.86ct Diamonds Cluster Ring 14Kt*

Located in New York, NY

Octagon Spinel 3.86ct. Natural GIA "No Heat" Spinel Diamonds ring.

Category

2010s American Cluster Rings

Materials

Diamond, Spinel, 14k Gold, White Gold

GIA Certified 8.12ct Natural No Heat Spinel 6.00ct Diamonds Ballerina Ring 18Kt*

$18,000

GIA Certified 8.12ct Natural No Heat Spinel 6.00ct Diamonds Ballerina Ring 18Kt*

Located in New York, NY

Ballerina Spinel 8.12ct. Natural GIA "No Heat" Spinel Diamonds ring.

Category

2010s American Cluster Rings

Materials

Diamond, Spinel, 18k Gold, Yellow Gold

2.87 Carat Natural Red NO HEAT Spinel GIA and Diamond Vintage Platinum Ring

$19,800

2.87 Carat Natural Red NO HEAT Spinel GIA and Diamond Vintage Platinum Ring

Located in Montreal, QC

Finely detailed Natural Red NO HEAT Spinel GIA and Diamond Platinum Vintage Cocktail Ring.

Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Spinel, Platinum

Rosaria Varra Natural No Heat Spinel 'GIA' and Emerald Earrings in 18 Karat Gold

$11,450

Rosaria Varra Natural No Heat Spinel 'GIA' and Emerald Earrings in 18 Karat Gold

By Rosaria Varra

Located in Miami, FL

A pair of GIA No Heat Spinel and Emerald earrings in 18K yellow gold.

Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Emerald, Spinel, Gold, 18k Gold, Yellow Gold

Art Deco GIA Certified 4.35 Carat No Heat Spinel Vintage Platinum Ring

$18,750

Art Deco GIA Certified 4.35 Carat No Heat Spinel Vintage Platinum Ring

By Gad & Co.

Located in Miami, FL

Vintage Art Deco GIA Certified No Heat Spinel 18K Gold and Platinum Ring. This cathedral ring features a natural red spinel center gemstone.

Category

Mid-20th Century North American Art Deco Cocktail Rings

Materials

Diamond, Spinel, Gold, 18k Gold, White Gold, Platinum

18kt White Gold Ring with a 3.25 Ct No Heat Spinel Stone and 1.2ct Diamonds

$13,334

18kt White Gold Ring with a 3.25 Ct No Heat Spinel Stone and 1.2ct Diamonds

By Orologio / Joël Glecer

Located in Antwerp, BE

18kt White Gold Ring with a 3.25 Ct No Heat Spinel Spinel stone and 1.2ct Diamonds Exclusive handcrafted 18 kt diamond Spinel Ring,One of a kind.

Category

21st Century and Contemporary Artisan Engagement Rings

Materials

Diamond, Spinel, White Gold

7.70 Carat Burma No Heat Spinel Cabochon Ruby White Diamond 18K Gold Earrings

$7,200

7.70 Carat Burma No Heat Spinel Cabochon Ruby White Diamond 18K Gold Earrings

Located in Kowloon, Hong Kong

Presenting a pair of exceptional 7.7 carat Burma no heat spinel cabochon, ruby, and diamond earrings, masterfully crafted in 18k white gold.

Category

2010s Stud Earrings

Materials

White Diamond, Ruby, Spinel, 18k Gold, White Gold

Emilio Jewelry Certified 19.79 Carat No Heat Spinel Earring

$300,000

Emilio Jewelry Certified 19.79 Carat No Heat Spinel Earring

By Emilio!

Located in New York, NY

Showcasing a pair of gorgeous natural no heat untreated Spinels weighing almost 20 carats.

Category

21st Century and Contemporary Drop Earrings

Materials

Spinel

Emilio Jewelry Certified 9.00 Carat No Heat Spinel Ring

Price Upon Request

Emilio Jewelry Certified 9.00 Carat No Heat Spinel Ring

By Emilio!

Located in New York, NY

Showcasing a 9 carat spinel of no heat with exceptional color and clarity.

Category

21st Century and Contemporary Cocktail Rings

Materials

Spinel

Art-Deco Burma No Heat Spinel Cabochon White Diamond Platinum Bracelet

$30,200

Art-Deco Burma No Heat Spinel Cabochon White Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

Imposing in its presence and distinguished in its pedigree, this magnificent bracelet showcases a staggering 55 carats of natural Burmese spinel cabochons — unenhanced, with a mesmer...

Category

2010s Art Deco Retro Bracelets

Materials

White Diamond, Spinel, Diamond, Platinum

Art-Deco Inspired Burma No Heat Spinel Cabochon White Diamond Platinum Bracelet

$30,000

Art-Deco Inspired Burma No Heat Spinel Cabochon White Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

Imposing in its presence and distinguished in its pedigree, this magnificent bracelet showcases a staggering 46.59 carats of natural Burmese spinel cabochons — unenhanced, with a mes...

Category

2010s Retro Bracelets

Materials

White Diamond, Spinel, Platinum

GIA Certified 1.14 Carat Burmese, No Heat Spinel Ring Set in Platinum

$2,800

GIA Certified 1.14 Carat Burmese, No Heat Spinel Ring Set in Platinum

Located in Tokyo, JP

A beautiful halo ring featuring a GIA Certified 1.144 Carat Natural, No Heat, Burmese Spinel and 0.54 Carats of Diamond Accents set in Platinum.

Category

21st Century and Contemporary Japanese Modern Fashion Rings

Materials

Diamond, Spinel, Platinum

1.19 Carat Cushion-Cut Burma No Heat Spinel and White Diamond Pendant Necklace

$4,800

1.19 Carat Cushion-Cut Burma No Heat Spinel and White Diamond Pendant Necklace

Located in Hong Kong, HK

A beautiful pendant necklace, it features a 1.19 carat cushion-cut unheated Burmese spinel in the centre surrounded by a halo of white round-brilliant cut diamonds weighing 0.12 cara...

Category

2010s Hong Kong Modern Pendant Necklaces

Materials

White Diamond, Spinel

Time Wrapped Spinel No Heat 18K Designer Ring

$3,150

Time Wrapped Spinel No Heat 18K Designer Ring

By Malpani Jewels

Located in Hung Hom, HK

Inspired by the theory of Time wrap hypothesis, a Burma No Heat Spinel weighing 0.57 carat is placed on this intricate 18K Ring.

Category

2010s Hong Kong Art Nouveau Band Rings

Materials

Spinel, 18k Gold

Certified Red Spinel, Burma No Heat & Diamond Cocktail Ring 18 Karat Gold

$19,750

Certified Red Spinel, Burma No Heat & Diamond Cocktail Ring 18 Karat Gold

By Emeralds Maravellous

Located in Brunswick, ME

Stunning and classic natural Burma No Heat Spinel cushion-cut vivid red weighing 2.21 carats GFCO certified.

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Spinel, Ruby, Gold, 18k Gold, White Gold

GIA Certified Burma No Heat Sapphire Cabochon Spinel Diamond Platinum Bracelet

$18,500

GIA Certified Burma No Heat Sapphire Cabochon Spinel Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

An extraordinary masterpiece of artistry and elegance. ---------------------------------------------------- Gemstone Weights: Sapphire-- 19.8 carats [GIA, Burma No Heat] Spinel --...

Category

2010s Modern Bracelets

Materials

Diamond, Sapphire, Spinel, Platinum

GIA Certified 7.60 Carat No Heat Pink Spinel and Diamond Ring in Platinum

$75,000

GIA Certified 7.60 Carat No Heat Pink Spinel and Diamond Ring in Platinum

By Gad & Co.

Located in Miami, FL

GIA Certified Oval Cut Pink No Heat Spinel and Diamond Ring in Platinum. GIA certified spinel center stone.

Category

21st Century and Contemporary North American Contemporary Fashion Rings

Materials

Diamond, Spinel, Platinum

9.88 Carat Spinel Burma No Heat And Diamond Engagement Ring. Gubelin Certified.

$400,000Sale Price|20% Off

9.88 Carat Spinel Burma No Heat And Diamond Engagement Ring. Gubelin Certified.

By MOGULDIAM INC

Located in New York, NY

The details are as follows : Burma No Heat Spinel : 9.88 carat Color : Vibrant Red Shape : Cushion Measurements : 13.96x10.51x7.84mm Ring size : 7 (can be sized as per requirem...

Category

2010s Engagement Rings

Materials

Diamond, Spinel

GIA 6.02 Carat Natural Spinel Diamond Platinum Three-Stone Engagement Ring

$17,995

GIA 6.02 Carat Natural Spinel Diamond Platinum Three-Stone Engagement Ring

Located in Stamford, CT

GIA certified no heat Spinel of 3.75cts of old cut. 1 cushion purplish pink Spinel, approx. total weight 3.75cts, SI1, 9.67 x 9.00 x 5.25mm, natural no heat, GIA certificate #117636...

Category

Early 20th Century Three-Stone Rings

Materials

Diamond, Spinel, Platinum

Exclusive Spinel Collection 68 Pcs No Heat Gemstone

$17,995

Exclusive Spinel Collection 68 Pcs No Heat Gemstone

By Emeralds Maravellous

Located in Brunswick, ME

Burmese Spinel Fancy Oval Waterfall Loose Gems Set Spinel fancy 100% natural oval loose gems set palette from baby pink to hot pink and violet to purple. Set weighing 54.50 carats, o...

Category

21st Century and Contemporary Unknown Artisan Loose Gemstones

Materials

Spinel

1.06 Carat Natural Pink Spinel from Burma No Heat

$320

1.06 Carat Natural Pink Spinel from Burma No Heat

Located in Hua Hin, TH

1.06 Carat Natural Pink Spinel from Burma Dimension: 6.21 x 6.08 x 3.36mm Shape: Cushion Cut Weight: 1.06 Carat No Heat GIL Certified Report No: STO2022102151318

Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.67 Carat Natural Purple Spinel from Burma No heat

$850

1.67 Carat Natural Purple Spinel from Burma No heat

Located in Hua Hin, TH

Lovely Sparkling 1.67 Carat Natural Purple Spinel from Burma Dimension: 8.41 x 6.43x 4.45. mm Shape: Oval Faceted Cut Weight: 1.67 Carat No Heat GIL Certified Report No: STO20221021...

Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.64 Carat Natural Purple Spinel from Burma No Heat

$350

1.64 Carat Natural Purple Spinel from Burma No Heat

Located in Hua Hin, TH

1.64 Carat Natural Purple Spinel from Burma Dimension: 8.37 x 5.91 x 3.52 mm Weight: 1.64 Carat Shape: Octagon Cut No Heat GIL Certified Report No; STO2022102151331

Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.36 Carat Natural Purple Spinel from Burma No Heat

$300

1.36 Carat Natural Purple Spinel from Burma No Heat

Located in Hua Hin, TH

1.36 Carat Natural Purple Spinel from Burma Dimension: 7.23 x 5.21 x 3.74. mm Weight: 1.36 Carat Shape: Octagon Cut No Heat GIL Certified Report No; STO2022102151329

Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.16 Carat Natural Pink Spinel from Burma No Heat

$290

1.16 Carat Natural Pink Spinel from Burma No Heat

Located in Hua Hin, TH

Untreated 1.16 Carat Natural Pink Spinel from Burma Dimension 6.23 x 5.83 x 3.71 mm Shape: Cushion Cut Weight: 1.16 Carat

Category

2010s Burmese Loose Gemstones

Materials

Spinel

1.63 Carat Natural Vivid Pink Spinel from Burma No Heat

$490

1.63 Carat Natural Vivid Pink Spinel from Burma No Heat

Located in Hua Hin, TH

Lovely sparkling 1.63 Carat Natural Vivid Pink Spinel from Burma Dimension: 7.61 x 5.82 x 4.72 mm Weight: 1.63 Carat Shape: Oval Faceted Cut No treatment No Heat Comes with certific...

Category

2010s Burmese Loose Gemstones

Materials

Spinel

4.10 Carat Natural Burma No Heat Cushion Cut Pink Spinel

$2,300

4.10 Carat Natural Burma No Heat Cushion Cut Pink Spinel

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

2.30 Carat Violet Spinel from Sri Lanka No Heat

$1,650

2.30 Carat Violet Spinel from Sri Lanka No Heat

Located in Hua Hin, TH

Lovely 2.30 Carat Pastel Violet Spinel from Sri Lanka Shape: Antique Cushion Cutting style: Faceted. Crown: Modified Brilliant, Pavilion: Step Color: Violet with a pastel saturation ...

Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

14K Yellow Gold Burmese No-Heat Red Spinel, Emerald & Diamond Ring

$5,989

14K Yellow Gold Burmese No-Heat Red Spinel, Emerald & Diamond Ring

Located in New York, NY

Elegant 14K yellow gold marquise-shaped ring featuring a 1.85 carat Burmese red spinel (no heat) set between two oval emeralds totaling 1.63 carats.

Category

Vintage 1960s Modern Engagement Rings

Materials

Diamond, Emerald, Spinel, Gold, 14k Gold, Yellow Gold

1.54 Carat Natural Pinkish Red Spinel from Burma No Heat

$1,232Sale Price|20% Off

1.54 Carat Natural Pinkish Red Spinel from Burma No Heat

Located in Hua Hin, TH

Lovley 1.54 Carat Natural Pinkish Red Spinel from Burma Dimension: 8.29 x 5.40 x 3.43 mm Weight: 1.54 Carat Shape: Octagonal Cut No Heat Gil Certified Report No: ST02022102151332

Category

2010s Burmese Loose Gemstones

Materials

Spinel

3.14 Carat Red Cushion Cut No Heat Burmese Spinel Certified

$18,900

3.14 Carat Red Cushion Cut No Heat Burmese Spinel Certified

By Emeralds Maravellous

Located in Brunswick, ME

Certified Cushion-Cut No Heat Burmese Red Spinel. Gemstone: Natural Spinel Carat Weight: 3.14 Carats Measurements: 9.87 x 7.21 x 5.08 mm.

Category

21st Century and Contemporary American Contemporary Loose Gemstones

Materials

Spinel

4.37Ct No Heat Burma Red Spinel Pendant in 18k gold

$1,860

4.37Ct No Heat Burma Red Spinel Pendant in 18k gold

Located in Singapore, SG

At the center sits a 4.37ct Burma red spinel, framed by 3.17ct of pastel natural Unheated sapphires, set in 18K solid gold. The design allows for optional dangles, offering versatili...

Category

21st Century and Contemporary Singaporean Art Deco Pendant Necklaces

Materials

Sapphire, Spinel, 18k Gold

GIA Certified 1.64ct No Heat Red Spinel, Mogok Burma, Cushion Cut

$3,200

GIA Certified 1.64ct No Heat Red Spinel, Mogok Burma, Cushion Cut

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

GIA Certified 1.27ct No Heat Red Spinel, Mogok Burma, Cushion Cut

$2,300

GIA Certified 1.27ct No Heat Red Spinel, Mogok Burma, Cushion Cut

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

GIA Certified 2.47ct No Heat Red Spinel, Cushion Cut, Mogok, Burma

$5,000

GIA Certified 2.47ct No Heat Red Spinel, Cushion Cut, Mogok, Burma

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

GIA Certified 1.91ct No Heat Red Spinel, Mogok Burma, Cushion Cut

$4,100

GIA Certified 1.91ct No Heat Red Spinel, Mogok Burma, Cushion Cut

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

Estate Vintage Platinum 5.49ct Burmese Spinel Solitaire Ring, No Heat

$9,960

Estate Vintage Platinum 5.49ct Burmese Spinel Solitaire Ring, No Heat

By Emeralds Maravellous

Located in Brunswick, ME

Behold an estate vintage piece featuring a 5.49-carat natural Burmese spinel of remarkable caliber. This untreated gemstone captivates with its distinctive grayish violet-purple hue,...

Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Spinel, Platinum

Lotus Certified 3.41 Carat Red Spinel from Sri Lanka No Heat

$1,592Sale Price|20% Off

Lotus Certified 3.41 Carat Red Spinel from Sri Lanka No Heat

Located in Hua Hin, TH

Lotus Certified 3.41 carat Red Spinel from Sri Lanka Shape: Oval Cutting Style Faceted, Crown Brilliant, Pavilion Fancy Dimensions: 10.40 x 8.10 x 5.69 mm Weight: 3.41 Carat No Heat...

Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

No Heat Pink Spinel Cts 4.21 and Diamond Dangle Earrings

$9,500

No Heat Pink Spinel Cts 4.21 and Diamond Dangle Earrings

Located in Hong Kong, HK

These pink spinels are exceptionally rare as they are free from any heat treatment.

Category

21st Century and Contemporary Hong Kong Contemporary Dangle Earrings

Materials

Diamond, Spinel, 18k Gold, White Gold

GIL Certified 2.12 Carat Cobalt Blue Spinel from Burma No Heat

$890

GIL Certified 2.12 Carat Cobalt Blue Spinel from Burma No Heat

Located in Hua Hin, TH

GIL Certified 2.12 carat Cobalt Blue Spinel from Burma No Heat Dimension: 7.00 x 7.56 x 4.79 mm Weight: 2.12 carat Cut: Octagonal

Category

2010s Burmese Loose Gemstones

Materials

Spinel

Gubelin Certified 11.88 Carat Burma No Heat Red Spinel Pair, Cushion Cut

$154,000

Gubelin Certified 11.88 Carat Burma No Heat Red Spinel Pair, Cushion Cut

Located in Kowloon, Hong Kong

The spinels are entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

18k Yellow Gold GIA 7.6ct No Heat Burma Pink Spinel Bezel Solitaire Ring

$19,998

18k Yellow Gold GIA 7.6ct No Heat Burma Pink Spinel Bezel Solitaire Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Spinel - Cushion Brilliant Cut - Bezel Set - Vivid Pink Color - NO HEAT - Burma ** See Certification Details Below for Complete Info ** Total Carat ...

Category

21st Century and Contemporary Solitaire Rings

Materials

Spinel, Gold, 18k Gold, Yellow Gold

GIA Certified Burma No Heat Natural Spinel & Diamond & Pearl Bracelet, 18KWG

$45,000

GIA Certified Burma No Heat Natural Spinel & Diamond & Pearl Bracelet, 18KWG

Located in New York, NY

GIA Certified Burma No Heat Natural Spinel & Diamond & Pearl Bracelet , 18 Karat White Gold This exceptionally Beautiful , High Quality bracelet has Three Cabochon of GIA certified...

Category

2010s Tennis Bracelets

Materials

Diamond, Pearl, Spinel, 18k Gold

Natural Burma No Heat Brilliant Cut Red Spinel White Diamond Platinum Bracelet

$14,500

Natural Burma No Heat Brilliant Cut Red Spinel White Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

Sourced exclusively from Burma (Myanmar), these spinels are completely free from heat treatment—a rarity that elevates their intrinsic value and speaks to their natural beauty.

Category

2010s Modern Bracelets

Materials

White Diamond, Spinel, Platinum

3.22 Carat Spinel No Heat Marquise Solitaire Ring Yellow Gold 14K

$4,800

3.22 Carat Spinel No Heat Marquise Solitaire Ring Yellow Gold 14K

By Emeralds Maravellous

Located in Brunswick, ME

Fine Natural Marquise Spinel No Heat Solitaire Yellow Gold Ring 14K in Brand New Condition.

Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Spinel, 14k Gold, Yellow Gold

16.93 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone

$3,703

16.93 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone

Located in Jaipur, RJ

16.93 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone Gemstone - Spinel Weight - 16.93 carats Size - 21x13x6 MM Piece - 1 Shape - Tumbled

Category

21st Century and Contemporary Burmese Loose Gemstones

Materials

Spinel

17.24 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone

$2,499

17.24 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone

Located in Jaipur, RJ

17.24 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone Gemstone - Spinel Weight - 17.24 Size - 21x15 MM Piece - 1 Shape - Tumbled

Category

21st Century and Contemporary Burmese Loose Gemstones

Materials

Spinel

Natural Burma No Heat Round Cut Pink Spinel White Diamond Platinum Bracelet

$18,500

Natural Burma No Heat Round Cut Pink Spinel White Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

Sourced exclusively from Burma (Myanmar), these spinels are completely free from heat treatment—a rarity that elevates their intrinsic value and speaks to their natural beauty.

Category

2010s Modern Bracelets

Materials

White Diamond, Spinel, Platinum

Gubelin Certified 4.98 Carat Burma No Heat Red Spinel, Cushion Cut, Mogok, Burma

$37,000

Gubelin Certified 4.98 Carat Burma No Heat Red Spinel, Cushion Cut, Mogok, Burma

Located in Kowloon, Hong Kong

This spinel is entirely natural and untreated, free from any enhancements or heat treatments, ensuring its pure, unaltered beauty.

Category

2010s Loose Gemstones

Materials

Spinel

Platinum GIA 2.69ctw No Heat Deep Red Cushion Spinel Diamond Halo Ring

$2,998

Platinum GIA 2.69ctw No Heat Deep Red Cushion Spinel Diamond Halo Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Spinel - Cushion Brilliant Cut - Prong Set - Deep Red Color - Gorgeous Color - NO HEAT - 2.19ct (exact) ** See Certification Details Below for Compl...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Spinel, Platinum

Lotus Certified 3.33 Carat Purplish Red Spinel from Sri Lanka No Heat

$2,150

Lotus Certified 3.33 Carat Purplish Red Spinel from Sri Lanka No Heat

Located in Hua Hin, TH

3.33 Carat Purplish Red Spinel from Sri Lanka know in the past variously as Serendib or the "Isle of Jewels", Sri Lanka has produced fine gems for over 200 years, including many of ...

Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

Burmese Spinel Ovals Collection – No Heat, GRS Certified, Cts 2.03 to 2.70

$1,800

Burmese Spinel Ovals Collection – No Heat, GRS Certified, Cts 2.03 to 2.70

Located in Hong Kong, HK

This collection features exquisite spinel gemstones from Burma, known for their vibrant colors and durability. It includes two spinel ovals, each 2.03 carats, offering a clear and ...

Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Spinel

32.00 Carat Lot of exclusive Spinel Waterfall 42 Pcs No Heat Gemstone

$12,950

32.00 Carat Lot of exclusive Spinel Waterfall 42 Pcs No Heat Gemstone

By Emeralds Maravellous

Located in Brunswick, ME

Spinel Oval Waterfall Loose Gems Set Spinel fancy 100% natural Burma oval loose gems set palette from baby pink to hot pink and violet to purple. Set weighing approx. 32.00 carats, o...

Category

21st Century and Contemporary Unknown Artisan Loose Gemstones

Materials

Spinel

GIA Certified 3 Carat No Heat Red Spinel & Diamond Cocktail Platinum Ring

$22,500

GIA Certified 3 Carat No Heat Red Spinel & Diamond Cocktail Platinum Ring

Located in Miami, FL

A vintage and sophisticated ring featuring a rare 3 carat cushion-cut unheated red spinel, accented with 0.60 ctw of sparkling round brilliant diamonds. Mounted in a split shank plat...

Category

1990s Contemporary Cocktail Rings

Materials

Diamond, Spinel, Platinum

Burma No Heat Blue and Pink Sapphires Spinel Cabochon Diamond Platinum Bracelet

$27,500

Burma No Heat Blue and Pink Sapphires Spinel Cabochon Diamond Platinum Bracelet

Located in Kowloon, Hong Kong

The gemstones, all natural and unheated, possess unparalleled rarity, as heat treatment-free specimens from Burma command the highest regard in the world of fine gemmology.

Category

2010s Modern Bracelets

Materials

Diamond, Pink Sapphire, Spinel, Platinum

18kt. Gold Solitaire Ring with 2.91 ct. No Heat Burmese Spinel & Diamonds

$7,434

18kt. Gold Solitaire Ring with 2.91 ct. No Heat Burmese Spinel & Diamonds

By Joël Glecer / Orologio

Located in Antwerp, BE

Gold Solitaire Ring with 2.91 ct. No Heat Burmese Spinel and Diamonds With ALGT Certificate Spinel: Natural spinel, rectangular cushion, mixed cut, deep blue purplish colour, No hea...

Category

21st Century and Contemporary Belgian Artisan Fashion Rings

Materials

Diamond, Spinel, Gold, 18k Gold, White Gold

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No Heat Spinel For Sale on 1stDibs

Surely you’ll find the exact no heat spinel you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect no heat spinel may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but 2 Carat and 2.5 Carat carat weights, specifically, are sought with frequency. There have been many well-made iterations of the classic no heat spinel over the years, but those made by GILIN, Emeralds Maravellous and Emilio! are often thought to be among the most beautiful. A cushion cut version of this piece has appeal, but there are also oval cut and antique cushion cut versions for sale. If you’re browsing our inventory for a no heat spinel, 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 Spinel?

Prices for a no heat spinel can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,000 and can go as high as $499,000, while this accessory, on average, fetches $16,000.

Questions About No Heat Spinel

What is a no-heat sapphire?
1 Answer
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.
What is a spinel ring?
1 Answer
1stDibs ExpertFebruary 22, 2021
A spinel ring is a ring that holds a spinel gemstone. This gemstone is hard enough to withstand everyday wear and adored for its brilliance. One can find a spinel gemstone in a variety of colors such as pink, purple, black, and red.
What is a pink spinel?
1 Answer
1stDibs ExpertOctober 12, 2021
Pink spinel stones are rare gemstones that can be found in many colors, including light pink and deep pink. The name comes from their trademark shade of rosy-pink hues — a range that includes everything from violet to neon. Find a collection of vintage and designer pink spinel jewelry on 1stDibs today.
What is a spinel diamond?
1 Answer
1stDibs ExpertFebruary 22, 2021
Spinels are a type of gemstone made of magnesium illuminate and colored from chromium and iron. These gemstones form crystals that are very similar to diamonds and can be found in a variety of different colors. Although they are more rare than most other gemstones, spinels are usually less expensive and so “imitate” other gems, such as rubies.
What is cobalt spinel?
1 Answer
1stDibs ExpertApril 5, 2022
Cobalt blue spinels are the rarest and most valued type of spinel gemstone. They’re very popular in the modern gem industry and sought after by collectors. On 1stDibs, you’ll find a collection of cobalt spinel jewelry from some of the world’s top sellers.
Do sapphires conduct heat?
1 Answer
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.
How can I identify a cobalt Spinel?
1 Answer
1stDibs ExpertApril 5, 2022
True cobalt Spinel have a high-quality blue coloring that won’t glow under a UV light. For detailed analysis, consult a jeweler. Shop a collection of expertly-vetted cobalt spinel jewelry from some of the world’s top sellers on 1stDibs.
Why is cobalt spinel expensive?
1 Answer
1stDibs ExpertApril 5, 2022
Cobalt spinel is typically an expensive gemstone because it is rare. The gemstones feature a highly saturated blue color that sets them apart from other varieties of spinel. You can shop a selection of cobalt spinel gemstone jewelry on 1stDibs.
Is a red spinel valuable?
1 Answer
1stDibs ExpertApril 5, 2022
Red spinels are the most valuable hue of spinels. Red and pink spinel gems are also known as Burmese spinels. Because natural spinels are difficult to find they are not often promoted, however they’re highly coveted by collectors because unlike rubies, spinels are never heat treated. Shop a selection of spinel jewelry from some of the world’s top sellers on 1stDibs.
Can terracotta pots withstand heat?
1 Answer
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.
Do fireplaces need a heat shield?
1 Answer
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.
What is the difference between heated and unheated Ruby?
1 Answer
Roman Malakov DiamondsMarch 22, 2021
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.
Are Burmese rubies heat treated?
1 Answer
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.
Which mugs hold heat best?
1 Answer
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.
Is a cobalt spinel gem rare?
1 Answer
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.