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18k Tgd

8 Carat Diamond Eaclips
8 Carat Diamond Eaclips

8 Carat Diamond Eaclips

Located in New York, NY

PLAT 18K TGD measures 1 x 3/4 inch, weight 16.2 dwt.

Category

20th Century More Earrings

Materials

Diamond

18 Karat Yellow Gold and Platinum 8.28 Carat Diamond Necklace
18 Karat Yellow Gold and Platinum 8.28 Carat Diamond Necklace

18 Karat Yellow Gold and Platinum 8.28 Carat Diamond Necklace

Located in New York, NY

. Stamped TGD 18K Plat Total Diamond weight 8.28 carats

Category

1990s Unknown Contemporary Beaded Necklaces

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Chaavae 18 Karat and Platinum 4.50 Carat Diamond Bracelet
Chaavae 18 Karat and Platinum 4.50 Carat Diamond Bracelet

Chaavae 18 Karat and Platinum 4.50 Carat Diamond Bracelet

Located in New York, NY

. The bracelet measures 7" long x 5/8" wide. Total diamond weight 4.50 carats Signed TGD 18K Plat

Category

1990s American Contemporary Link Bracelets

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

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A MASTERPIECE! 46.75 carats of white pear, marquise and round brilliant cut diamonds set in 18k white gold. The piece can be worn as a necklace and easily converted into a tiara...

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Harry Winston Jacques Timey Burmese Sapphire Diamond Necklace, 1980s
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The Harry Winston Jacques Timey Vintage Sapphire Diamond Bib Necklace, crafted in the 20th century, showcases an Art Deco-inspired design in platinum, adorned with a plethora of diam...

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Cartier Paris 5cts Diamond Huggie Hoop Earrings in 18K Yellow Gold
Cartier Paris 5cts Diamond Huggie Hoop Earrings in 18K Yellow Gold

Cartier Paris 5cts Diamond Huggie Hoop Earrings in 18K Yellow Gold

By Cartier

Located in Dallas, TX

A fabulous pair of vintage Cartier Paris diamond huggie-hoop earrings. They showcase approximately 5 carats of sparkling diamonds set in shimmering 18 karat yellow gold. Each earring...

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Vintage Tiffany & Co. "Vannerie" Basket Weave Necklace
Vintage Tiffany & Co. "Vannerie" Basket Weave Necklace

Vintage Tiffany & Co. "Vannerie" Basket Weave Necklace

By Tiffany & Co.

Located in New York, NY

Vintage Tiffany & Co. "Vannerie" Basket Weave Yellow Gold Choker Necklace, crafter in 18k yellow gold, secured with a box clasp. Inscribed Tiffany & Co., 750. Length 13.5inc...

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Important Harry Winston Diamond 23 Carat Certified Emerald Pendant Necklace
Important Harry Winston Diamond 23 Carat Certified Emerald Pendant Necklace

Important Harry Winston Diamond 23 Carat Certified Emerald Pendant Necklace

By Harry Winston

Located in New York, NY

Important Harry Winston Diamond 23 Carat Certified Emerald Pendant Necklace An 18k gold and platinum detachable pendant necklace, set with diamonds and emerald, signed Harry Winston....

Category

Vintage 1960s American Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold, Platinum

Van Cleef & Arpels 18k Yellow Gold Diamond and Sapphire Three Strand Necklace
Van Cleef & Arpels 18k Yellow Gold Diamond and Sapphire Three Strand Necklace

Van Cleef & Arpels 18k Yellow Gold Diamond and Sapphire Three Strand Necklace

By Van Cleef & Arpels

Located in New York, NY

The Van Cleef & Arpels cabochon sapphire and diamond necklace is a masterpiece of luxury and sophistication. Composed of three strands of flat-links, this necklace exudes timeless el...

Category

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Materials

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BUCCELLATI Aquamarine Diamond Ruby 18k Yellow Gold Ring
BUCCELLATI Aquamarine Diamond Ruby 18k Yellow Gold Ring

BUCCELLATI Aquamarine Diamond Ruby 18k Yellow Gold Ring

By Gianmaria Buccellati

Located in New York, NY

This exquisite vintage Gianmaria Buccellati cocktail ring is crafted in 18k brushed and textured yellow gold with white gold accents. This ring is set with a faceted oval 7.0mm x 10....

Category

1990s Cocktail Rings

Materials

Aquamarine, Diamond, Ruby, Yellow Gold

22 Karat Yellow Gold Flexible Cuff Style Bracelet with Granulated Design
22 Karat Yellow Gold Flexible Cuff Style Bracelet with Granulated Design

22 Karat Yellow Gold Flexible Cuff Style Bracelet with Granulated Design

Located in Scottsdale, AZ

This luxurious textured gold bracelet is crafted in opulent 22 karat yellow gold. The bracelet boasts a wide and flexible design, composed of a series of intricate wire flower motifs...

Category

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Rolex x Loree Rodkin Watch
Rolex x Loree Rodkin Watch

Rolex x Loree Rodkin Watch

By Rolex

Located in London, GB

A Rolex Oyster Perpetual Day-Date crafted in 18k yellow gold, customised by jewellery designer Loree Rodkin. The watch features a champagne dial with baton hour markers, day aperture...

Category

21st Century and Contemporary Wrist Watches

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Emilio Jewelry GIA Certified Natural Pink Heart Stud Diamond Earrings
Emilio Jewelry GIA Certified Natural Pink Heart Stud Diamond Earrings

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By Emilio!

Located in New York, NY

From the Museum Vault at Emilio Jewelry located on New York's iconic Fifth avenue, The focal point of these magnificent earrings feature 2 heart shape natural Fancy light Pink diamo...

Category

21st Century and Contemporary Stud Earrings

Materials

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Magnificent Old European Cut Diamond and Sapphire Ring
Magnificent Old European Cut Diamond and Sapphire Ring

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By Paul Binder

Located in Lucerne, CH

Well played fusion of an antique diamond with a modern design. Binder Zurich is a well know name for collectors all over the world. The 7.21 ct old European cut diamond of approxim...

Category

Early 2000s Swiss Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Rose Gold

Hammerman Brothers Multi Row Diamond Flexible Link Bracelet in 18 Karat Gold
Hammerman Brothers Multi Row Diamond Flexible Link Bracelet in 18 Karat Gold

Hammerman Brothers Multi Row Diamond Flexible Link Bracelet in 18 Karat Gold

By Hammerman Brothers

Located in Scottsdale, AZ

You will absolutely fall in love with this stunningly beautiful bracelet designed by renowned jeweler, Hammerman Brothers. Since 1946, Hammerman Jewels has been an American made, fam...

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Late 20th Century American Contemporary Link Bracelets

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By Van Cleef & Arpels

Located in New York, NY

A French Van Cleef & Arpels Gold and Diamond Cocktail Ring made in 18k Gold. The ring has 42 diamonds weighing appx. 1.25 carats. The color is appx. F/G and the clarity is VS1. Frenc...

Category

20th Century Cocktail Rings

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11.30ct Colombian Emerald Diamond Cocktail Ring in 18k Gold
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11.30ct Colombian Emerald Diamond Cocktail Ring in 18k Gold

By Spectra Fine Jewelry

Located in New York, NY

Introducing an extraordinary statement piece: the 11.30-carat Colombian Emerald Diamond Cocktail Ring. At its center shines a magnificent 11.30-carat emerald-cut Colombian Emerald, a...

Category

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Buccellati 9.5 Carats Burmese Ruby Diamond Wide Cuff Bracelet GIA Certified
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Buccellati 9.5 Carats Burmese Ruby Diamond Wide Cuff Bracelet GIA Certified

By Buccellati

Located in Miami, FL

This is one of the most stunning bracelets you will ever see! This is a handmade original Buccellati cuff bracelet with original box. There are a total of approximately 9.5 carats o...

Category

21st Century and Contemporary Cuff Bracelets

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold, Yellow Gold

NWT $180, 000 Rare Fancy 18KT Gold 55CT Gorgeous Fancy Yellow Diamond Necklace
NWT $180, 000 Rare Fancy 18KT Gold 55CT Gorgeous Fancy Yellow Diamond Necklace

NWT $180, 000 Rare Fancy 18KT Gold 55CT Gorgeous Fancy Yellow Diamond Necklace

Located in New York, NY

The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and Sparkling Magnificent Rare Yellow Diamond Necklace. Necklace contains approx 55CTS...

Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, Yellow Diamond, Brown Diamond, Gold, 18k Gold

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The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And 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

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Questions About 18k Tgd
  • 1stDibs ExpertNovember 21, 2023
    Whether a wedding band should be 14K or 18K depends on your personal preferences. Because it contains more pure gold, 18-karat gold will usually show off a richer color and be less likely to fade over time. On the other hand, 14-karat gold is less prone to scratching and damage because it has more alloy metals. Explore a large collection of gold wedding bands on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Whether or not 18K gold wears off depends on how it's made. The finish will not wear off of a piece of jewelry or another object made entirely out of 18K gold. However, wear can occur on pieces that feature 18K gold plating, a thin layer of gold applied over another type of metal. You'll find a large selection of gold jewelry and decorative objects on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    18K Italy gold is 18-karat gold produced in Italy. Karats tell you how much of a piece of metal is genuine gold. In the case of 18-karat gold, 18 parts are pure gold, and six parts are other metals. This makes 18-karat pieces 75 percent gold. You'll find a large collection of gold jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    An 18K gold watch is a timepiece made from gold precious metal of a specific purity. The term 18K means 18-karat, a precious metal that is 75 percent pure gold and 25 percent alloy. Shop a large collection of gold watches on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    The mark 18K on a ring stands for 18-karat gold. 18-karat signifies that the ring is 75% pure gold and 25% other metals, such as copper, zinc or nickel. The additional metals strengthen the ring, making it more durable. Shop a range of expertly vetted 18-karat jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    18K green gold is an alloy created by mixing silver, copper and zinc with normal gold. 18K green gold is greener than 14K green gold. On 1stDibs, shop a wide collection of genuine 18K green gold from some of the world's top sellers.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k is the perfect karatage for jewelry. While 24k is more prized and typically more expensive, it is also less dense and durable than 18k gold.
  • 1stDibs ExpertApril 5, 2022
    Yes, 18K gold is real gold. However, it is not pure gold. Something marked 18K is 75 percent genuine gold and 25 percent metal alloy. On 1stDibs, shop a range of expertly vetted gold jewelry from some of the world’s top sellers.
  • 1stDibs ExpertAugust 26, 2024
    The difference between 24K gold and 18K gold is how much pure gold the metals contain. Something made of 24-karat gold is 99.9% pure gold, while 18-karat gold items are 75% gold and 25% alloy metals. Generally, 18-karat gold is more durable and scratch-resistant due to the presence of alloy metals. On the other hand, 24-karat gold tends to be more richly colored and expensive. On 1stDibs, find a wide range of gold jewelry.
  • 1stDibs ExpertOctober 12, 2021
    The difference between 14k and 18k rose gold metal is that the 14k rose gold is less pure than 18k. 14k rose gold has a deeper pink color because of greater amounts of copper, whereas 18k rose gold has 75% gold and appears yellow. 14k rose gold is increasingly popular due to its brighter pink hue and resistance to scratches. On 1stDibs, shop a range of vintage rose gold jewelry.
  • 1stDibs ExpertSeptember 16, 2024
    Yes, many people believe that 18k gold is worth buying. Due to the metal's durability, jewelry produced from 18-karat gold is often resistant to scratching and damage. In addition, the large amount of pure gold in the alloy gives white, rose and yellow 18-karat gold a vibrant color. However, whether or not it’s worth investing in 18-karat gold is totally subjective! At 1stDibs, we believe in buying what you love. Our shopping experience enables discovery and learning, whether you are a seasoned connoisseur or just beginning your collection. Find a diverse range of gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 26, 2024
    On a watch, 18K gold means that the watch features genuine gold. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The high gold content gives the metal an attractive color, while the alloy metals add strength to increase its durability. An 18-karat gold watch may be solid gold or gold-filled, which means it is primarily another metal that the watchmaker finished with a thin layer of 18-karat gold. On 1stDibs, find a large selection of gold watches.
  • 1stDibs ExpertDecember 5, 2024
    Many watch lovers believe that 18K gold is good for watches. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The amount of gold makes the color of the alloy, whether it's white, yellow or rose, rich and visually appealing. At the same time, the addition of alloy metals increases the strength of the gold material. Explore a large selection of watches on 1stDibs.
  • 1stDibs ExpertAugust 29, 2024
    Yes, 18K 750 is real gold. Gold pieces that bear this hallmark are 18-karat gold, a 75% pure gold alloy and 25% base metal. One of the most popular materials for fine jewelry, 18-karat gold shows off a rich yellow, white or rose color and resists scratching more readily than pure gold. Explore a wide variety of 18-karat gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k gold can tarnish, but it is uncommon. Pure gold does not combine easily with oxygen and therefore does not tarnish. The higher the karat, the less likely a piece of gold will tarnish.
  • 1stDibs ExpertMarch 22, 2022
    Yes, 18-karat gold can turn green in some circumstances. This type of gold is about 75 percent genuine gold and 25 percent alloy, and the other metal or metals used to produce it may react negatively to acidic substances. When this occurs, 18-karat gold may take on a greenish hue. On 1stDibs, shop a large selection of gold jewelry.
  • 1stDibs ExpertNovember 1, 2023
    The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.
  • 1stDibs ExpertApril 5, 2022
    Yes, gold dipped, also known as gold plated, pieces are considered real gold. The process coats a piece of metal or alloy with a layer of gold for a gold finish. Shop a collection of 18 karat gold jewelry, solid and dipped, on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    A piece of jewelry or a decorative object marked 18K gold plated does likely contain real gold. The marking indicates that the item is metal under a layer of gold alloy that contains 75 percent gold and 25 percent other metal. On 1stDibs, shop a collection of expertly vetted gold jewelry.