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GIA No Heat 2.05CT Natural Sapphire Diamonds Spanish Deco Gilt Ring Unheated 14K
Located in New York, NY
Spanish Gilt Revival Deco 1.17ct. GIA No Heat Sapphire Brownish Orangy Pink 6.40 X 6.25 X 4.09
Category

2010s American Revival Solitaire Rings

Materials

Diamond, Pink Sapphire, 14k Gold

Emeralds Maravellous 7.18 Carat GIA No Heat Color-Changing Sapphire Diamond Ring
By Emeralds Maravellous
Located in US
GIA no heat certified blue oval cut Sapphire. 6.43 carat with a white round brilliant cut diamond
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Blue Sapphire, Sapphire, White Diamond, Diamond, 18k Gold, White Gold

GIA No Heat 2.97 Carat Natural Gem Blue Sapphire Diamond Ring Unheated 14 Karat
Located in New York, NY
Gem Investiture. 2.27ct. GIA No Heat Sapphire Classic Royal Top Gem Blue 8.49 X 6.71 X 4.60
Category

2010s American Solitaire Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Vintage 2.51 Carat GIA NO HEAT Red Spinel Diamond Onyx Platinum Cocktail Ring
Located in Montreal, QC
Simply Beautiful! Vintage Finely detailed Red Spinel GIA NO HEAT Diamond and Onyx Platinum Cocktail
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Onyx, Spinel, Platinum

GIA No Heat Cushion Cut Blue Sapphire Diamond White Gold Drop Dangle Earrings
Located in Boca Raton, FL
GIA No Heat Cushion Cut Blue Sapphire Diamond White Gold Drop Dangle Earrings This pair of
Category

21st Century and Contemporary Modern Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

GIA No Heat Burma Carved Sapphire 1.05 Two Diamonds 0.71 Carat Platinum Ring
By OGI Ltd
Located in New York, NY
Exquisite GIA No Heat Burma Carved Sapphire Ring with Diamonds in Platinum - 1.05ct Sapphire
Category

2010s American Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA No Heat Sapphire Antique Victorian Diamond Gold Ring
Located in Miami, FL
: 1 Round Natural No Heat Sapphire, Old European Round Diamonds Diamond Color: J Diamond Clarity: SI
Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Kashmir AGL GIA No Heat Sapphire 2.53cts Diamond Platinum Ring
Located in Miami, FL
ring adorned with diamonds, and Natural No-Heat Kashmir sapphire, crafted in Platinum GIA Certified
Category

Vintage 1980s American Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA No-Heat Color Change Sapphire and Diamond Cocktail Ring
Located in Beverly Hills, CA
Unique GIA-certified 6.19 ct. No Heat Color Change Sapphire Cocktail Ring. This extraordinary
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Purple Sapphire, Gold, ...

Vintage GIA No-Heat BURMA Sapphire Diamond Platinum Bracelet & Neckalce
Located in Miami, FL
as two bracelets. Prong Set with 8 genuine cabochon RARE BURMA Sapphires NO-HEAT all NATURAL
Category

Vintage 1940s Art Deco Choker Necklaces

Materials

Diamond, Sapphire, Platinum

GIA No Heat 1.02 Carat Purplish-Pink Sapphire Diamond Ring
Located in San Francisco, CA
GIA report no. 1106710490.
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Sapphire, 18k Gold

GIA No Heat Cabochon 7.57ct Ruby Diamond Platinum Cocktail Ring
Located in Miami, FL
centered with 1 genuine cabochon oval cut ruby, GIA certified, approx. 7.57ct and is framed with 54 genuine
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Ruby, Platinum

Estate Platinum 18k GIA No Heat Cushion Purple Sapphire Diamond Ring
Located in Winter Springs, FL
A beautifully made ring done in platinum and 18K centered by a 3.81ct natural cushion cut “no heat
Category

Late 20th Century Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Purple Sapphire, 18k Gold, Platinum

1960s Sri Lanka GIA No Heat Sapphire 15.86cts Diamond Drop Earrings
Located in Miami, FL
. Both Sapphies are certified and come with a GIA Lab Report. All Natural with No Heat Indication or any
Category

Vintage 1960s American Retro Drop Earrings

Materials

Diamond, Sapphire, Platinum

Art Deco 8.08ct Star Sapphire Gold Ring GIA No Heat Ceylon
Located in Litchfield, CT
8.08 carat no-heat star sapphire is magnificent. Finely cut and with lovely color, it stars beautifully
Category

Vintage 1920s American Fashion Rings

Materials

Star Sapphire, White Gold, 18k Gold, Gold

Vintage Platinum 2.4ctw GIA NO HEAT Purple Sapphire & Diamond Engagement Ring
Located in Montclair, NJ
- NO HEAT - 2.10ct (exact - certified) ** See Certification Details Below for Complete Info ** (2
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Purple Sapphire, Platinum

NEW Platinum 3.92ctw GIA NO HEAT Purple Sapphire & Diamond Engagement Ring
Located in Montclair, NJ
Pure Purple Color w/ Few Natural Inclusions - NO HEAT - 3.01ct (exact - certified) ** See Certification
Category

2010s American Engagement Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

Antique Edwardian Platinum 4.14ctw GIA No Heat Sapphire Diamond Filigree Ring
Located in Montclair, NJ
finger Condition: Antique Edwardian. Comes w/ the original GIA certification for the sapphire. Stock
Category

Vintage 1910s Edwardian Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Art Nouveau GIA No Heat Sapphire Snake Ring 1ct Cushion Cut Original 1890's 18K
Located in Dearborn, MI
Discover the Allure of the 1890's with our Art Nouveau GIA No Heat Sapphire Snake Ring. This 1ct
Category

Antique 1890s Art Nouveau Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Platinum GIA No Heat Cushion Sapphire Solitaire w/ Diamond Halo Engagement Ring
Located in Montclair, NJ
stunning, GIA certified, natural genuine sapphire solitaire neatly prong set at the center of a brilliant
Category

Early 2000s Engagement Rings

Materials

Diamond, Sapphire, Platinum

Solid Platinum 1.49ctw GIA No Heat Oval Blue Sapphire & Trillion Diamond Ring
Located in Montclair, NJ
Heat - 1.17ct (exact - certified) **See Certification Details Below** (2) Natural Genuine Diamonds
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Blue Sapphire, Platinum

Victorian 14K Sugarloaf Cabochon Sapphire Mine Diamond Cuff Bracelet GIA NO HEAT
Located in Winter Springs, FL
sugarloaf and oval cabochon natural no heat sapphires as well as approximately 1.80cttw in F-J color Vs1-Si2
Category

Antique Mid-19th Century Victorian Bangles

Materials

Diamond, Sapphire, 14k Gold

Platinum GIA No Heat 6.21ctw Zoned Greenish Blue Emerald Cut Sapphire Ring
Located in Montclair, NJ
ring features an incredibly unique, 100% natural, GIA certified sapphire that has the most amazing
Category

2010s American Engagement Rings

Materials

Sapphire, Platinum

Platinum Halo Diamond Gia No Heat Color Change Purple Sapphire Engagement Ring
Located in Los Angeles, CA
Sapphire and Diamond Ring Metal- 90% Platinum, 10% Iridium. Stones- GIA Certified No Heat Color Change
Category

2010s Modern Engagement Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

Platinum Tacori GIA NO HEAT Emerald Cut Purple Sapphire Diamond Engagement Ring
By Tacori
Located in Montclair, NJ
was designed by Tacori. It features a truly breathtaking, GIA certified, emerald cut sapphire
Category

21st Century and Contemporary Engagement Rings

Materials

Purple Sapphire, Diamond, Sapphire, Platinum

Vintage Platinum 2.51ctw GIA No Heat Round Purple-Pink Sapphire & Diamond Ring
Located in Montclair, NJ
crafted from solid platinum. It features a GIA certified, sapphire solitaire that is neatly prong set at
Category

Vintage 1970s Solitaire Rings

Materials

Diamond, Pink Sapphire, Platinum

Platinum & 18k Gold GIA No Heat Burma Sapphire & Baguette Diamond Ballerina Ring
Located in Montclair, NJ
18k yellow gold prongs that carries a GIA certified sapphire at its center. The beautiful gemstone has
Category

Late 20th Century Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold, Platinum

Antique GIA No Heat Sapphire and Rose Cut Diamond Gold Bar Brooch
Located in Miami Beach, FL
. This piece is accompanied with a GIA cert which states the origin as Sri Lanka and that there is no
Category

Antique Late 19th Century Brooches

Materials

Diamond, Blue Sapphire, 14k Gold, Silver

Domed Ruby and Diamond Ring in 18k Yellow Gold GIA No Heat
Located in Wailea, HI
certified by GIA as having no heat treatment. At the center of this exquisite piece rests a vibrant, oval
Category

Late 20th Century American Modern Dome Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

1920's Burma Royal Blue GIA No Heat Cabochon Sapphire & Diamond Unisex Ring
Located in Boston, MA
an impressive 5 carat No Heat sapphire of Burma origin. The sapphire comes with a GIA certificate
Category

Vintage 1920s Art Deco Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

14K Gold 3.52ctw GIA No Heat Oval Blue Sapphire Diamond Halo Pendant Necklace
Located in Montclair, NJ
/ Natural Inclusions- NO HEAT - 3.13ct (exact - certified) ** See Certification Details Below for Complete
Category

2010s American Pendant Necklaces

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Vintage Red Carpet 5.23 Carat GIA NO HEAT Purple Sapphire Diamond Platinum Ring
Located in Montreal, QC
Ring. Centering a securely nestled Hand set Oval NO HEAT Purple Sapphire Gemstone GIA, weighing approx
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

New 14k Tt Gold 2.47ctw Gia No Heat Blue Sapphire & Diamond Engagement Ring
Located in Montclair, NJ
AMAZING COLOR - NO HEAT - 2.07ct (exact - certified) ** See Certification Details Below for Complete Info
Category

2010s American Cocktail Rings

Materials

Diamond, Blue Sapphire, Gold

NEW Platinum 2.50ct Cushion GIA No Heat Blue Sapphire Bezel Set Solitaire Ring
Located in Montclair, NJ
Blue Color - No Heat - 2.50ct (exact - certified) ** See Certification Details Below for Complete Info
Category

2010s American Solitaire Rings

Materials

Blue Sapphire, Platinum

New Platinum & 14k Gold 3.61ct GIA No Heat Pink Sapphire Diamond Solitaire Ring
Located in Montclair, NJ
-Pink Color w/ Natural Inclusions - No Heat - 3.02ct (exact - certified) ** See Certification Details
Category

2010s American Solitaire Rings

Materials

Diamond, Pink Sapphire, 14k Gold, Rose Gold, Platinum

NEW Platinum 2.01ctw GIA NO HEAT Pink Sapphire & Diamond 3 Stone Engagement Ring
Located in Montclair, NJ
newly crafted in solid platinum. The ring features a truly gorgeous, GIA certified, sapphire solitaire
Category

2010s American Engagement Rings

Materials

Diamond, Pink Sapphire, Platinum

New 18k Yellow Gold 1.05ct GIA No Heat Sapphire Sideway Bezel Solitaire Ring
Located in Montclair, NJ
Color - 1.05ct (exact - certified) - VERY NICE CLEAN COLOR - NO HEAT ** See Certification Details Below
Category

2010s American Solitaire Rings

Materials

Sapphire, 18k Gold, Yellow Gold

Vintage 18K White Gold GIA NO HEAT Pink Sapphire & Heart Diamond Accents Ring
Located in Montclair, NJ
Purplish-Pink Color - NO HEAT - 1.20ct (approx. based on GIA measurements) ** See Certification Details
Category

21st Century and Contemporary Solitaire Rings

Materials

Pink Sapphire, Diamond, 18k Gold, White Gold

New Platinum 6.52ctw GIA No Heat Oval Sapphire & Paraiba Tourmaline 3 Stone Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Oval Brilliant Cut - Prong Set - Blue Color - No Heat
Category

2010s American Three-Stone Rings

Materials

Sapphire, Tourmaline, Platinum

9.79 Carat Cushion Cut Ceylon Natural Yellow Sapphire 'GIA' No Heat Diamond Ring
Located in Houston, TX
is accompanied by its own GIA report stating Sri Lanka as its origin & no indications of any heat
Category

2010s Sri Lankan Engagement Rings

Materials

Diamond, Yellow Sapphire, Platinum

Victorian GIA No-Heat Burmese Pink Sapphires & Old Mine Diamond 16KY Gold Ring
Located in New York, NY
Victorian English GIA 1.80ctw No-Heat Burmese Pink Sapphires & Old Mine Diamond Double Rows
Category

Antique 1890s English Victorian Wedding Rings

Materials

Diamond, Pink Sapphire, Gold

NEW Platinum 1.89ctw GIA NO HEAT Cushion Blue Spinel Brilliant Diamond Halo Ring
Located in Montclair, NJ
solid platinum. It features a gorgeous, GIA certified, natural spinel stone at its center and further
Category

2010s American Engagement Rings

Materials

Diamond, Spinel, Platinum

NEW 18K Gold 5.24ctw GIA NO HEAT Pink Sapphire & Diamond Halo Pendant Necklace
Located in Montclair, NJ
been GIA certified weighing exactly 4.14 carats with no indications of heat treatment. The lively round
Category

2010s American Pendant Necklaces

Materials

Diamond, Pink Sapphire, 18k Gold, White Gold, Yellow Gold

GIA No Heat 2.40 Carat Natural Ruby Diamond Ring Classic Set Unheated Blood
Located in New York, NY
Investor's Addition: GIA 1.15Ct Natural "NO HEAT" Ruby Excellent cut Clean Clarity Classic
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, White Gold, Yellow Gold

1.92 Carat GIA No Heat Sapphire and Diamond Platinum Ring Fine Estate Jewelry
Located in Montreal, QC
a NO HEAT oval Australian Blue Sapphire, weighing approx. 1.92 Carats surrounded by Diamonds
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

18k White Gold 2.13ctw GIA No Heat Cushion Red Spinel & Baguette Diamond Ring
Located in Montclair, NJ
- NO HEAT - 1.73ct (approx. based on GIA measurements) ** See Certification Details Below for Complete
Category

Early 2000s Solitaire Rings

Materials

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

New Platinum 2.37ctw GIA No Heat Oval Bezel Sapphire Diamond Milgrain Halo Ring
Located in Montclair, NJ
a TOP QUALITY, GIA certified, sapphire at its center. The beautiful gemstone has an oval brilliant
Category

2010s American Solitaire Rings

Materials

Diamond, Sapphire, Platinum

Estate 14k Gold 8.18ctw GIA NO HEAT Oval Green Sapphire & Diamond Halo Earrings
Located in Montclair, NJ
in solid 14k yellow gold. Each earring is perfectly prong set with a very fine quality, GIA certified
Category

Late 20th Century Stud Earrings

Materials

Diamond, Sapphire, Green Sapphire, 14k Gold, Yellow Gold

New Platinum 4.79ctw GIA No Heat Oval Blue Sapphire & Diamond Halo Cocktail Ring
Located in Montclair, NJ
GIA as weighing exactly 3.54 carats and mined from Madagascar. Its exceptional color is all natural as
Category

2010s American Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA No Heat Platinum Ceylon Cabochon Sapphire 2.05 Carat Diamond 0.25 Carat Ring
By OGI Ltd
Located in New York, NY
with every angle. Certified by GIA (Gemological Institute of America), the sapphire boasts natural
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Vintage 18k White Gold 6.63ct GIA No Heat Sugarloaf Sapphire & Diamond Halo Ring
Located in Montclair, NJ
6.63 carat, GIA certified, Australian sapphire displays a dark blue color throughout and presents no
Category

Late 20th Century Swedish Solitaire Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

14k White Gold 2.55ctw GIA No Heat Oval Brownish Pink Sapphire Solitaire Ring
Located in Montclair, NJ
features a GIA certified oval brilliant cut sapphire solitaire neatly prong set at the center of its simple
Category

2010s Unknown Engagement Rings

Materials

Pink Sapphire, 14k Gold, White Gold

Antique Victorian 14k Gold 2.00ct GIA No Heat Burma Sapphire & Euro Diamond Ring
Located in Montclair, NJ
sapphire at its center. The sapphire is a gorgeous, royal deep blue color and is certified by GIA as a
Category

Antique Late 19th Century Unknown Victorian Three-Stone Rings

Materials

Diamond, Sapphire, 14k Gold, Rose Gold

New Platinum & 18k Gold 2.77ctw GIA NO HEAT Red Spinel w/ Diamond Halo Ring
Located in Montclair, NJ
HEAT - 2.10ct (exact - certified) ** See Certification Details Below For More Info ** (12) Natural
Category

2010s American Solitaire Rings

Materials

Diamond, Spinel, 18k Gold, Platinum

New 14k Gold 4.66ctw Gia No Heat Oval Cabochon Burma Ruby & Diamond Halo Ring
Located in Montclair, NJ
design is set with a GIA certified natural ruby has no heat treatment. It is surrounded by a halo of 20
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Pink Sapphire 1.74 CT GIA No Heat & Cadillac Diamonds 0.39CT in 18K Yellow Ring
Located in New York, NY
This stunning ring is a beautiful symbol of your love and commitment. Its centerpiece is a GIA
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

White Diamond, Pink Sapphire, Diamond, Yellow Gold, 18k Gold

18k Gold 1.51ctw GIA No Heat Cushion Vivid Red Ruby & Diamond Flower Halo Ring
Located in Montclair, NJ
. The elegant flower cluster design is set with a GIA certified, natural ruby stone that displays truly
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Estate 14k Gold 2.09ctw GIA NO HEAT Oval Purple Sapphire w/ Diamond Halo Ring
Located in Montclair, NJ
HEAT - 1.64ct (exact. certified) ** See Certification Details Below for Complete Info ** (12) Natural
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Purple Sapphire, White Gold, 14k Gold

Antique Victorian 14k Gold GIA NO HEAT Oval BURMA Red Ruby & Diamond Halo Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Ruby - Oval Brilliant Cut - Multi Prong Set - Red Color - NO HEAT
Category

Antique 1890s Victorian Engagement Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

New 14k White Gold 7.9ctw GIA NO HEAT Oval Cabochon Ruby & Diamond Halo Ring
Located in Montclair, NJ
Color - NO HEAT - 7.44ct (exact - certified) ** See Certification Details Below For More Info ** (22
Category

2010s American Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

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Gia No Heat For Sale on 1stDibs

On 1stDibs, you can find the most appropriate gia no heat for your needs in our varied inventory. Frequently made of platinum, gold and 18k gold, this item was constructed with great care. Our collection of these items for sale includes 1314 vintage editions and 1063 modern creations to choose from as well. You’re likely to find the perfect gia no heat among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. Creating a gia no heat has been a part of the legacy of many jewelers, but those produced by Peter Suchy, Antinori Fine Jewels and OGI Ltd are consistently popular. A gia no heat can make for a versatile accessory, but a selection from our variety of 1690 diamond versions can add an especially stylish touch. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes cushion cut and round cut alternatives. When shopping for a gia no heat, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Gia No Heat?

The price for a gia no heat starts at $829 and tops out at $1,750,000 with these rings, on average, selling for $13,209.

Finding the Right rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.

Questions About Gia No Heat
  • 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 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 ExpertMarch 25, 2024
    In jewelry, GIA means the Gemological Institute of America. Founded in 1931, it is a nonprofit organization that conducts research on and educates the public about gemstones. During the 1950s, GIA unveiled a grading system to help consumers evaluate diamonds, and you will still see GIA ratings used today to describe the cut, clarity and color of gemstones. On 1stDibs, explore a wide range of jewelry.
  • 1stDibs ExpertApril 5, 2022
    Yes, Cartier diamonds are indeed GIA certified. The Gemological Institute of America (GIA) works closely with Cartier and certifies everything from the cut and clarity to the color of the gem. Shop a collection of expertly vetted Cartier jewelry from some of the world’s top sellers on 1stDibs.
  • 1stDibs ExpertAugust 17, 2021
    In the United States, diamond rings are certified by an official gemological laboratory known as the Gemological Institute of America. A certified diamond ring means that the diamond has undergone a quality analysis by experts at an institution such as the GIA and these experts have issued a lab report that is indicative of the grading process.
  • 1stDibs ExpertFebruary 22, 2021
    When a diamond is GIA certified, it means that the stone has undergone the meticulous set of grading procedures that have been established by the Gemological Institute of America. The GIA is not a jeweler — it is an independent, nonprofit group that sets the standards for determining the quality of a diamond.
  • 1stDibs ExpertFebruary 13, 2023
    While diamond studs don't need to be GIA-certified to be sold, experts typically recommend that you only purchase diamonds that carry certification from the Gemological Institute of America (GIA) or Authentic Gem Security Lab (AGSL). Certifications bring transparency to the buying process, allowing you to know the level of quality of a diamond before you purchase it. Shop a collection of vintage and modern diamond gemstone earrings from some of the world’s top jewelers on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    Whether Neil Lane diamonds are GIA-certified or not depends on the piece. All of the diamonds featured in rings and other jewelry designs from the Neil Lane Couture collection do carry GIA certification. Pieces made for third-party retailers may not. On 1stDibs, find a collection of Neil Lane jewelry.