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Tiffany Co. Soleste Diamond Band Ring in Platinum, size 5½
By Tiffany Co.
Located in Bethesda, MD
This exquisite Tiffany & Co. Soleste full circle band ring features a seamless row of brilliant
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Tiffany Co. HardWear Diamond Necklace in 18K Rose Gold – 28.38 Carats
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. HardWear Diamond Necklace in 18K Rose Gold – 28.38 Carats A bold and iconic
Category

2010s American Multi-Strand Necklaces

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

TIFFANY Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5 Metal: platinum Size: 5
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY Co. Etoile 18K Gold Diamond 4mm Band Ring 9
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Etoile 18K Gold Diamond 4mm Band Ring 9 Metal: 18K Gold Size: 9 Band Width: 4mm
Category

2010s American Band Rings

Materials

Diamond, 18k Gold, Platinum

Tiffany Co. Paloma Picasso Large Diamond Gold Heart Brooch
By Tiffany Co.
Located in Stamford, CT
Tiffany & Co. Large Size Paloma Picasso Diamond Heart brooch 18k Yellow Gold. Set with 18 round
Category

Late 20th Century Brooches

Materials

Diamond, 18k Gold, Yellow Gold, Gold

TIFFANY Co. 18K White Gold .05ct Diamond Cross Stitch Pendant Necklace
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. 18K White Gold .05ct Diamond Cross Stitch Pendant Necklace Metal: 18K White Gold
Category

2010s Italian Pendant Necklaces

Materials

Diamond, White Gold

Tiffany Co. 2.03 Carat True Radiant Brilliant Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. 2.03 Carat True™ Cut Radiant Brilliant Diamond Engagement Ring Offered here is a
Category

Early 2000s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Vintage Tiffany Co. Diamond Sapphire Irid Platinum Cocktail Ring
By Tiffany Co.
Located in Southampton, PA
Irid Platinum Sapphire Diamond Vintage Cocktail Ring by Tiffany & Co. With 1 Sapphire - 5mm x 4mm
Category

Vintage 1960s American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany Co. Diamond Blue Chalcedony Platinum Star Pendant Necklace
By Tiffany Co.
Located in Southampton, PA
Platinum Diamond Blue Chalcedony Vintage Star Pendant Necklace by Tiffany & Co. An exquisite
Category

Vintage 1980s American Pendant Necklaces

Materials

Diamond, Chalcedony, Platinum

Tiffany Co. 3mm Diamond Channel Band - 950 Round .54ctw Wedding Ring
By Tiffany Co.
Located in Greensboro, NC
: Tiffany Co. Design: 3mm Channel Band Metal Content: Platinum 950 Stone Information Natural
Category

21st Century and Contemporary Band Rings

Materials

Diamond

Tiffany Co. 4.24 Carat Platinum Three-Stone Emerald Cut Diamond Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany Co. Platinum Three-Stone Emerald Cut Diamond Engagement Ring – 4.24 Carats Total A
Category

2010s American Modern Solitaire Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Tiffany Co. Platinum and 18K Gold Emerald and Diamond Bracelet
By Tiffany Co.
Located in Great Neck Plaza, NY
A stunning Tiffany Co. bracelet, meticulously crafted in a combination of platinum and 18K
Category

Vintage 1960s Clamper Bracelets

Materials

Diamond, Emerald, 18k Gold, Platinum

Tiffany Co. Platinum Flower Lace Clover and Pear-Shaped Diamond Pendant
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. Platinum Flower Lace Clover and Pear-Shaped Diamond Pendant Necklace, 1.20 Total
Category

1990s American Modern Pendant Necklaces

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold, Platinum

Tiffany Co. Diamond Signature X Yellow Gold Band Ring
By Tiffany Co.
Located in Southampton, PA
18k Yellow Gold Diamond X Band Ring by Tiffany & Co. With 14 Round Brilliant Cut Diamonds VS1
Category

1990s American Band Rings

Materials

Diamond, Yellow Gold

Tiffany Co 1.16ct Old Miner Cut Diamond Platinum Vintage Engagement Ring
By Tiffany Co.
Located in New York, NY
Designer: Tiffany Co Title: This elegant Tiffany Co vintage engagement ring showcases a
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Soleste Cushion Yellow Diamond Cluster Stud Earrings Platinum Gold
By Tiffany Co.
Located in Lisbon, PT
Tiffany Co. “Soleste” Fancy Yellow Diamond Cluster Stud Earrings in Platinum and 18K Yellow
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

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

TIFFANY Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5 Metal: platinum Size: 5 Band
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY Co. Etoile 18K Gold Diamond 4mm Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Etoile 18K Gold Diamond 4mm Band Ring 5 Metal: 18K Gold Size: 5 Band Width: 4mm
Category

2010s American Band Rings

Materials

Diamond, 18k Gold, Platinum

Estate Tiffany Co. Diamond 18K Yellow Gold Signature X Drop Earrings
By Tiffany Co.
Located in New York, NY
Classic Tiffany Co. diamond 18K yellow gold Signature X drop earrings 20th Century Luxurious
Category

20th Century Drop Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Tiffany Co. Pearl And Diamond Ear Clip Earrings In Platinum.
By Tiffany Co.
Located in New York, NY
Tiffany & Co. Pearl & Diamond Ear Clip Earrings In Platinum. Center of the earrings set with two
Category

21st Century and Contemporary American Artist Clip-on Earrings

Materials

Diamond, Pearl, Platinum

TIFFANY Co. 18K Gold 5.5mm Wide Diamond T Ring 9
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. 18K Gold 5.5mm Wide Diamond T Ring 9 Tiffany T is an expression of love’s endless
Category

2010s American Band Rings

Materials

Diamond, 18k Gold

Vintage Tiffany Co. 18K Gold, Diamond, and Citrine Flower Brooch
By Tiffany Co.
Located in New York, NY
A rare and elegant vintage brooch by Tiffany Co., beautifully modeled as a stylized flower
Category

20th Century Unknown Brooches

Materials

Citrine, Diamond, Sterling Silver, Enamel, 18k Gold

Tiffany Co. 18k Yellow Gold Platinum Fancy Intense Yellow Diamond Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. 18k Yellow Gold & Platinum Fancy Intense Yellow Diamond Soleste Halo Engagement Ring
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Platinum, 18k Gold, Yellow Gold

Tiffany Co. Burma Sapphire GIA 21.50cts Diamond Platinum Cocktail Ring
By Tiffany Co.
Located in Miami, FL
Tiffany & Co. cocktail ring showcases an extraordinary 13.65 carats of a Rare Burma, No-Heat, no
Category

Vintage 1980s American Retro Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Antique Tiffany Co. Gold Platinum 0.48ct Diamond Solitaire Engagement Ring
By Tiffany Co.
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Diamond - Old European Cut - Multi Prong Set - F Color - VS1
Category

Antique 19th Century Edwardian Solitaire Rings

Materials

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

Tiffany Co. Platinum Legacy Cushion Brilliant Cut Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. Platinum Legacy Cushion Brilliant Cut Diamond Engagement Ring – G VS1, 2.16 Carat
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Lucida Platinum 0.32ct Natural Diamond Solitaire Engagement Ring
By Tiffany Co.
Located in Baltimore, MD
Tiffany & Co. Lucida Platinum 0.32ct Natural Diamond Solitaire Engagement Ring Metal: Platinum
Category

1990s Contemporary Engagement Rings

Materials

Diamond, Platinum

Vintage Tiffany Co., 18K Yellow Gold, Diamond and Sapphire Ring
By Tiffany Co.
Located in Chicago, IL
This unique ring designed by Tiffany & Co., contains 20 top quality round brilliant cut diamonds
Category

Vintage 1960s Unknown Dome Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Tiffany Co. Diamond Platinum 3.7mm Shared Setting Band Size 6
By Tiffany Co.
Located in Simpsonville, SC
The Tiffany & Co. Diamond Platinum 3.7mm Shared Setting Band is a magnificent piece of jewelry that
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

TIFFANY Co. 18K Gold 4.5mm Wide Diamond T Ring 8
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. 18K Gold 4.5mm Wide Diamond T Ring 8 Tiffany T is an expression of love’s endless
Category

2010s American Band Rings

Materials

Diamond, 18k Gold

Schlumberger Tiffany&Co. 18k Platinum Pearl Diamond Clip On Earrings
By Tiffany Co.
Located in Bernardsville, NJ
Brand: Tiffany & Co. Designer: Schlumberger Material: 18k & Platinum (stamped 750 and PT 950
Category

20th Century Stud Earrings

Materials

Diamond, Pearl, 18k Gold, Platinum

TIFFANY Co. 18K White Gold 5.5mm Wide Diamond T Ring 6
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. 18K White Gold 5.5mm Wide Diamond T Ring 6 Metal: 18K White Gold Size: 6 Band
Category

2010s Band Rings

Materials

Diamond, White Gold

Tiffany Co. Diamond Halo Ring Pear Shaped Morganite ~6.7ctw Size 5.5
By Tiffany Co.
Located in Fairfield, CT
Tiffany Co. Diamond Halo Ring Pear Shaped Morganite ~6.7ctw Size 5.5 This Tiffany Co
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Morganite, Platinum

Tiffany Co. Schlumberger Vigne Diamond Ring Size J (49)
By Tiffany Co.
Located in London, GB
Here we have a superb diamond ring from the world renowned luxury jewellery designer Tiffany & Co
Category

21st Century and Contemporary Fashion Rings

Materials

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

Vintage Tiffany Co. Platinum Natural Diamond Ribbon Bow Pin Brooch
By Tiffany Co.
Located in Baltimore, MD
Vintage Tiffany & Co. Platinum Natural Diamond Ribbon Bow Pin Brooch Metal: Platinum Weight: 6.51
Category

Mid-20th Century Retro Brooches

Materials

Diamond, Platinum

TIFFANY Co. Etoile 18K Gold Diamond 4mm Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Etoile 18K Gold Diamond 4mm Band Ring 5 Metal: 18K Gold Size: 5 Band Width: 4mm
Category

2010s American Band Rings

Materials

Diamond, 18k Gold, Platinum

TIFFANY Co. Platinum .43ct Princess Cut Diamond Engagement Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum .43ct Princess Cut Diamond Engagement Ring 5 Metal: Platinum Size: 5
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

0.49 Carat Tiffany Co Lucida Diamond Platinum Engagement Ring
By Tiffany Co.
Located in London, GB
A 0.49 Carat Tiffany & Co Lucida diamond platinum engagement ring. From the Tiffany & Co ‘Lucida
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Sixteen Stone in Platinum/Yellow Gold with Diamonds
By Tiffany Co.
Located in New York, NY
Tiffany & Co. Sixteen Stone in Platinum & 18k Yellow Gold with Diamonds 18k gold and platinum with
Category

2010s American Modern Band Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Tiffany Co. Atlas Diamond Bangle Bracelet 18K White Gold 0.15Cttw
By Tiffany Co.
Located in New York, NY
This beautiful bangle bracelet is a part of Tiffany Co.'s ‘Atlas’ collection. Made in 18K
Category

2010s Modern Bangles

Materials

Diamond, 18k Gold, White Gold

Tiffany Co. 1837 18ct Yellow Gold Circle Diamond Pendant 5.85g
By Tiffany Co.
Located in SYDNEY, NSW
This refined Tiffany & Co. 1837 circle pendant is crafted in luxurious 18ct yellow gold, featuring
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Tiffany Co Diamond Wave Yellow Gold Platinum Band Ring
By Tiffany Co.
Located in Southampton, PA
18k Yellow Gold And Platinum Diamond Wave Band Ring by Tiffany & Co. With 58 Round Brilliant Cut
Category

1990s American Band Rings

Materials

Diamond, Yellow Gold, Platinum

TIFFANY Co. Etoile 18K Gold Diamond 4mm Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Etoile 18K Gold Diamond 4mm Band Ring 5 Metal: 18K Gold Size: 5 Band Width: 4mm
Category

2010s American Band Rings

Materials

Diamond, 18k Gold, Platinum

Tiffany Co. Elsa Peretti Single Diamond Band Ring in Platinum
By Tiffany Co.
Located in New York, NY
The Tiffany & Co. Elsa Peretti band ring is a beautiful ring made from platinum. The ring features
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Platinum

Tiffany Co. 1.69ct F VS2 Diamond Platinum Circular Brilliant Engagement Ring
By Tiffany Co.
Located in New York, NY
classic Tiffany band featuring six additional F-color, VS-clarity brilliant diamonds totaling 0.18 carats
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Three Stone Platinum 1.31ct Gia Diamond Sapphire Engagement Ring
By Tiffany Co.
Located in Houston, TX
Weight: 5.50 grams Ladies TIFFANY CO. 950 platinum, diamond and sapphire engagement, three-stone
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co. Tiffany Knot Double Row Hinge Bangle
By Tiffany Co.
Located in London, GB
Here we have a iconic piece from the world renowned jewellery designer, Tiffany & Co. This 18ct
Category

21st Century and Contemporary Bangles

Materials

Diamond, Gold, 18k Gold, Yellow Gold

TIFFANY Co. Atlas 18K White Gold 3 Diamonds Open Ring 7
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Atlas 18K White Gold 3 Diamonds Open Ring 7 Metal: 18K White Gold Size: 7 Band Width
Category

2010s Three-Stone Rings

Materials

Diamond, White Gold

18ct Yellow Gold and Diamond Tiffany Co. Cuff Bangle
By Tiffany Co.
Located in London, GB
This gorgeous cuff bangle from Tiffany & Co. is simply divine. 66 round brilliant cut diamonds of
Category

Vintage 1980s American Modern Cuff Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

Diamond and Ruby Bead Tassle Necklace by Tiffany Co.
By Tiffany Co.
Located in Beverly Hills, CA
This extraordinary Art Deco triple-strand tassel necklace by Tiffany & Co., crafted in platinum and
Category

Vintage 1930s French Art Deco Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold, Platinum

Tiffany Co. Hard Wear Medium 18K Yellow Gold Diamond Link Bracelet
By Tiffany Co.
Located in Chicago, IL
A bold and iconic design from the Tiffany HardWear collection, inspired by a 1962 archival piece
Category

2010s American Contemporary Chain Bracelets

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Tiffany Co Return To Mini Heart Diamond Silver Stud Earrings
By Tiffany Co.
Located in New York, NY
Return to Tiffany & Co stud Earring Material Sterling Silver Earrings Size Small Metal Purity 925
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Sterling Silver

Tiffany Co. 18k Yellow Gold Diamond Metro Bangle, 1.59ct, Women s
By Tiffany Co.
Located in Mayfair, London, London
An 18k yellow gold Metro bangle from Tiffany & Co. The bangle features approximately 108 round
Category

21st Century and Contemporary Bangles

Materials

Diamond, Yellow Gold

Tiffany Co. Platinum Diamond Wedding Band Ring Soleste Sz 5
By Tiffany Co.
Located in Northbrook, IL
This exquisite Tiffany & Co. wedding band ring is the perfect symbol of your eternal love. Crafted
Category

Late 20th Century Wedding Rings

Materials

Diamond, Platinum

Tiffany Co. Black Onyx Diamond Dress Set
By Tiffany Co.
Located in New York, NY
Tiffany & Co. black onyx diamond dress set Extremely fine signed platinum and gold black onyx and
Category

Vintage 1920s Cufflinks

Materials

White Gold, Platinum

Tiffany Co. Certified 1.06 Carat Round Brilliant Diamond Engagement Ring VVS2
By Tiffany Co.
Located in Chicago, IL
diamond, certified directly by Tiffany Co. for authenticity and quality. The center diamond features
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Soleste 1.24 Carat Cushion Vivid Yellow Diamond Engagement Ring
By Tiffany Co.
Located in New York, NY
Tiffany Co. Soleste Double Halo Engagement Ring The ring is 950 Platinum 750 18K Yellow
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Platinum, Gold, 18k Gold

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Tiffany Diamonds For Sale on 1stDibs

Browse a vast assortment of tiffany diamonds for sale on 1stDibs. These distinct designs — crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. Our selection of items includes 8020 vintage examples as well as 8598 contemporary versions. Our collection, which features older pieces for sale from the 18th Century and newer versions made as recently as the 21st Century, has proven very popular over the years. Our collection of tiffany diamonds includes designs that are universally popular, but modern and contemporary styles, specifically, are sought with frequency. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Tiffany Co., Jean Schlumberger for Tiffany Co. and Elsa Peretti for Tiffany Co. are consistently popular. A selection of round cut, brilliant cut and cushion cut can be found today on these pages. When shopping our range of tiffany diamonds, you’ll find that there are less available pieces for men today than there are for women.

How Much are Tiffany Diamonds?

Prices for tiffany diamonds start at $1 and top out at $3,200,000 with these rings, on average, selling for $4,997.

Tiffany Co. for sale on 1stDibs

Tiffany Co. is one of the most prominent purveyors of luxury goods in the United States, and has long been an important arbiter of style in the design of diamond engagement rings. A young Franklin Delano Roosevelt proposed to his future wife, Eleanor, with a Tiffany ring in 1904. Vanderbilts, Whitneys, Astors and members of the Russian imperial family all wore Tiffany Co. jewelry. And Jacqueline Kennedy Onassis preferred Tiffany china for state dinners at the White House.

Although synonymous with luxury today, the firm started out rather modestly. Charles Lewis Tiffany and John B. Young founded it in Connecticut as a “stationery and fancy goods emporium” in 1837, at a time when European imports still dominated the nascent American luxury market. In 1853, Charles Tiffany — who in 1845 had launched the company’s famed catalog, the Blue Book, and with it, the firm’s signature robin’s-egg blue, which he chose for the cover — shifted the focus to fine jewelry.

In 1868, Tiffany Co. gained international recognition when it became the first U.S. firm to win an award for excellence in silverware at the Exposition Universelle in Paris. From then on, it belonged to the pantheon of American luxury brands.

At the start of the Gilded Age, in 1870, Tiffany Co. opened its flagship store, described as a "palace of jewels" by the New York Times, at 15 Union Square West in Manhattan. Throughout this period, its designs for silver tableware, ceremonial silver, flatware and jewelry were highly sought-after indicators of status and taste. They also won the firm numerous accolades, including the grand prize for silverware at the Paris Exposition of 1878. Among the firm’s glittering creations from this time are masterworks of Art Nouveau jewelry, such as this delicate aquamarine necklace and this lavish plique-à-jour peridot and gold necklace, both circa 1900.

When Charles Lewis Tiffany died, in 1902, his son Louis Comfort Tiffany became the firm’s design director. Under his leadership, the Tiffany silver studio was a de facto design school for apprentice silversmiths, who worked alongside head artisan Edward C. Moore. The firm produced distinctive objects inspired by Japanese art and design, North American plants and flowers, and Native American patterns and crafts, adding aesthetic diversity to Tiffany Co.’s distinguished repertoire.

Tiffany is also closely associated with diamonds, even lending its name to one particularly rare and exceptional yellow stone. The firm bought the Tiffany diamond in its raw state from the Kimberley mines of South Africa in 1878. Cut to create a 128.54-carat gem with an unprecedented 82 facets, it is one of the most spectacular examples of a yellow diamond in the world.

In a broader sense, Tiffany Co. helped put diamonds on the map in 1886 by introducing the American marketplace to the solitaire diamond design, which is still among the most popular engagement-ring styles. The trademark Tiffany® Setting raises the stone above the band on six prongs, allowing its facets to catch the light. A lovely recent example is this circa-2000 platinum engagement ring. Displaying a different design and aesthetic (but equally chic) is this exquisite diamond and ruby ring from the 1930s.

Find Tiffany Co. jewelry, serveware and decorative objects for sale on 1stDibs.

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 Tiffany Co.
  • 1stDibs ExpertAugust 17, 2021
    A Tiffany Co. engagement ring can cost as little as $13,000 or as much as $500,000 depending on the center stone’s carat weight, the band material and whether or not there are any side stones. The smaller the stone, the cheaper the ring will be. Find engagement rings designed by Tiffany Co. on 1stDibs.