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TIFFANY Co. Forever Platinum 2.2mm Half Circle Diamond Embrace Band Ring 6.5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Forever Platinum 2.2mm Half Circle Diamond Embrace Band Ring 6.5 Metal: Platinum
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Tiffany Co. Soleste Platinum Aquamarine and Diamond Ring Size 51
By Tiffany Co.
Located in Banbury, GB
SKU 33301639 Comes With Box Only Serial Number 25****** Metal Platinum Stones Aquamarine, Diamond
Category

2010s American Engagement Rings

Materials

Diamond, Aquamarine, Platinum

Tiffany Co. - Purple-Pink Tourmaline Ring w/ Round Brilliant Diamonds
By Tiffany Co.
Located in New Orleans, LA
the diamonds from the Paloma Picasso Studios at Tiffany Date: 1980’s Style: Modern Creator: Tiffany
Category

Vintage 1980s American Modern Fashion Rings

Materials

Diamond, Tourmaline

Tiffany Co. 18K Gold Novo Fancy Vivid Yellow Oval Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. 18K Gold Novo Fancy Vivid Yellow Oval Diamond Engagement Ring From Tiffany
Category

2010s American Modern Engagement Rings

Materials

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

TIFFANY CO Three Stones Earrings Studs Solid Platinum With 6 Round Diamonds
By Tiffany Co.
Located in Miami, FL
Three diamonds earrings studs designed by Tiffany & Co. This is a beautiful pair of contemporary
Category

21st Century and Contemporary American Modernist Stud Earrings

Materials

Diamond, White Diamond, Platinum

Vintage Tiffany Co 18k Yellow Gold Diamond Vannerie Basketweave Earrings
By Tiffany Co.
Located in Bernardsville, NJ
Elegant and timeless vintage polished 18k yellow gold Tiffany & Co. diamond earrings from their
Category

Vintage 1980s Contemporary Lever-Back Earrings

Materials

Diamond, 18k Gold, Yellow Gold

1970s Tiffany Co. Emerald and Diamond 18k Yellow Gold Earrings
By Tiffany Co.
Located in Miami, FL
Tiffany & Co. Emerald and diamond drop earrings set in 18k solid gold. Centered by four perfectly
Category

20th Century American Retro Drop Earrings

Materials

Diamond, White Diamond, Emerald, Gold, 18k Gold, Yellow Gold

Tiffany Co. Yellow Gold Diamond Elsa Peretti Diamond By The Yard Pendant
By Tiffany Co.
Located in New York, NY
Tiffany Co. Yellow Gold Diamond Elsa Peretti Diamond By The Yard Pendant PRIMARY DETAILS SKU
Category

21st Century and Contemporary Pendant Necklaces

Materials

Yellow Gold

Tiffany Co. Platinum Diamond Bridal Set 1.60 Carat F/VVS2
By Tiffany Co.
Located in Mayfair, London, London
A breathtaking platinum diamond bridal set by Tiffany & Co. The engagement ring is set to the
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. 18 Karat White Gold 2003 Diamond Atlas Band
By Tiffany Co.
Located in Scottsdale, AZ
Designer: Tiffany & Co. Material: 18K white gold Diamond: 3 round brilliant cut = 0.15cttw Color
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Vintage Tiffany Co. Pocket Watch Pendant Platinum Diamond Estate Jewelry
By Tiffany Co.
Located in Beverly Hills, CA
round transitional cut diamonds. This classic Art Deco style Tiffany watch can be worn as a pendant. The
Category

Vintage 1950s French Pocket Watches

Materials

Diamond, Platinum

Platinum Tiffany Company Round Diamond Solitaire Engagement Ring Size 6.5
By Tiffany Co.
Located in Los Angeles, CA
Platinum Tiffany & Company Round Diamond Solitaire Engagement Ring 3.4 gram Finger size 6.5
Category

Early 2000s American Modern Engagement Rings

Materials

Diamond, Platinum

Tiffany Co.Platinum Lucida Cut Diamond Ring 1.61ct H/IF
By Tiffany Co.
Located in Mayfair, London, London
A stunning platinum Tiffany & Co. diamond ring from the Lucida collection. The ring comprises of a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Platinum Jazz Buckle Diamond Pendant Necklace 1.46 Carat
By Tiffany Co.
Located in Mayfair, London, London
A stunning platinum diamond drop pendant from the Jazz collection by Tiffany & Co. The pendant has
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

TIFFANY CO. Platinum, Diamond Sapphire Three Stone Engagement Ring w/Papers
By Tiffany Co.
Located in Beverly Hills, CA
Tiffany & Co. Platinum, Diamond & Sapphire Three Stone Engagement Ring w/Papers Circa 2000s Here
Category

2010s American Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co., 1.19 Carat Fancy Intense Yellow Cushion Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
. Gross weight: 2.60 grams Accompanied by: Tiffany & Co. Diamond Certificate and Retail Replacement
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

TIFFANY Co. Atlas 18K Gold Diamond Groove Bar Link Necklace 16"
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY Co. Atlas 18K Gold Diamond Groove Bar Link Necklace 16" Metal: 18K Yellow Gold
Category

1990s Choker Necklaces

Materials

Diamond, 18k Gold

Tiffany Co. Vintage 14K Gold 0.50ct Diamond Ruby Flower Brooch TI03-112525
By Tiffany Co.
Located in Southampton, PA
This delicate Tiffany & Co. brooch allows to you add beautiful bouquet to any ensemble. Enhanced by
Category

21st Century and Contemporary Brooches

Materials

Ruby, Diamond

Tiffany Co. Fancy Yellow and White Diamond Scalloped Dome Ring
By Tiffany Co.
Located in New York, NY
Tiffany & Co. Platinum and 18K Yellow Gold Fancy Yellow and White Diamond Scalloped Motif Dome Ring
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Antique Art Deco Tiffany Co. Platinum 3.2ctw Diamond Sapphire Watch Bracelet
By Tiffany Co.
Located in Montclair, NJ
--Stone(s):-- (75) Natural Genuine Diamonds - Old European Single Cut - Pave Bezel Set
Category

Vintage 1920s Swiss Art Deco Wrist Watches

Materials

Diamond, Sapphire, Platinum

Tiffany Co. Platinum Diamond Setting Ring 1.11ct D/VS1 XXX
By Tiffany Co.
Located in Mayfair, London, London
A stunning platinum diamond solitaire ring by Tiffany & Co. from the Setting collection. The
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

TIFFANY CO. Deco Long Platinum Necklace With Ctw In Kunzite And Diamonds
By Tiffany Co.
Located in Miami, FL
An art-deco necklace with a kunzite designed by Tiffany & Co. This is an outstanding statement
Category

Early 2000s American Art Deco Pendant Necklaces

Materials

Diamond, Kunzite, White Diamond, Platinum

Tiffany Co. Round Diamond Engagement Ring with Diamond Band 1.38 Carat F VVS2
By Tiffany Co.
Located in San Diego, CA
Tiffany & Co Six Prong Solitaire Engagement Ring with Channel Set Band. The Center Diamond is a
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Lucida Cut Diamond Engagement Ring 1.52ct G/VVS1
By Tiffany Co.
Located in Mayfair, London, London
A stunning platinum Tiffany & Co. diamond ring from the Lucida collection. The ring comprises of a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Round Diamond Cross Pendant Necklace Set in Polished Platinum
By Tiffany Co.
Located in Scottsdale, AZ
This classically beautiful cross pendant necklace from Tiffany & Co. is the epitome of understated
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

Tiffany Co. Platinum and Diamond Wedding Band Ring 2.5 MM
By Tiffany Co.
Located in San Diego, CA
Tiffany & Co. Style: Half Circle Diamond Wedding Band Sku Number: 16183296 Size: 5.5 - sizable
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Important Art Deco Tiffany Co. Kashmir Sapphire Diamond Platinum Ring
By Tiffany Co.
Located in Beverly Hills, CA
An extremely rare and treasured piece of fine antique jewelry. This ring made by Tiffany & Co. in
Category

Vintage 1940s American Art Deco Fashion Rings

Materials

Diamond, Sapphire, Platinum

Estate Tiffany Co. Aria Round Diamond Eternity Band in Platinum
By Tiffany Co.
Located in Houston, TX
An estate Tiffany Co. Aria round diamond eternity band in platinum. There are 40 round
Category

2010s North American Band Rings

Materials

Diamond, Platinum

Tiffany Co. Elsa Peretti Platinum Pavé Diamond Heart Pendant Necklace This st
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. Elsa Peretti Platinum Pavé Diamond Heart Pendant Necklace This stunning necklace is
Category

2010s American Modern Link Necklaces

Materials

Diamond, White Diamond, Platinum

Tiffany Co. Round Diamond Engagement Ring 1.23 Carat GVS2 Platinum
By Tiffany Co.
Located in San Diego, CA
Tiffany & Co. Diamond Engagement Ring Style: Six-Prong Classic Tiffany Solitaire Serial Number
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

TIFFANY Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8 Metal: Platinum Size: 8
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Tiffany Co. Crystal, Diamond and Onyx Platinum Bracelet, Art Deco, 1920s
By Tiffany Co.
Located in Roma, RM
A rare and striking Art Deco bracelet by Tiffany & Co., dating to the 1920s, exemplifying the bold
Category

Vintage 1920s American Art Deco Link Bracelets

Materials

Crystal, Diamond, Onyx, Platinum

TIFFANY CO. Art Deco Platinum Diamond and Ruby Terrier Pin
By Tiffany Co.
Located in Narberth, PA
A very charming Tiffany & Co. dog pin from the Art Deco (ca1920) era! Crafted in platinum, this
Category

Vintage 1920s Art Deco Brooches

Materials

Diamond, Ruby, Platinum

Tiffany Co. Platinum Diamond Stud Earrings Asscher Center Art Deco Style
By Tiffany Co.
Located in Northbrook, IL
Enhance your elegance with these stunning Tiffany & Co. stud earrings. Crafted from platinum, these
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Platinum

Tiffany Co. Platinum 1.19 ct Lucida Square Brilliant Cut Diamond Ring
By Tiffany Co.
Located in Chicago, IL
Tiffany Co. Platinum 1.19 ct Lucida Square Brilliant Cut Diamond Solitaire Engagement Ring
Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Tiffany Co. Soleste 0.43ct Diamond and Platinum Halo Cluster Engagement Ring
By Tiffany Co.
Located in London, GB
This wonderful engagement ring by the famous luxury house, Tiffany & Co. from their iconic 'Soleste
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Tiffany Co Platinum Round Diamond Engagement Ring 2.29 cts I VS1
By Tiffany Co.
Located in San Diego, CA
Tiffany & Co Round Brilliant Diamond Solitaire Engagement Ring Style: Prong Set Ref. number
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

Late 20th Century Tiffany Co Maltese Cross Diamond Platinum Stud Earrings
By Tiffany Co.
Located in Boca Raton, FL
These elegant Tiffany & Co. earrings feature the iconic Maltese Cross design, crafted in platinum
Category

Late 20th Century American Modern Stud Earrings

Materials

Diamond, Platinum

Tiffany Co. Platinum Novo Princess-Cut Diamond Engagement Ring 0.23ct 3g
By Tiffany Co.
Located in SYDNEY, NSW
Tiffany & Co. Diamond Certificate (67627814/T12180421), Green outer box, Green inner box, and original
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. 1.11 Carat Round Diamond Platinum Solitaire Engagement Ring GIA
By Tiffany Co.
Located in Philadelphia, PA
Centering a round brilliant cut diamond weighing 1.11 carats - I color with VS1 clarity Set in a
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, Platinum

Tiffany Co. G.I.A. Fancy Vivid Yellow Diamond Ring
By Tiffany Co.
Located in New York, NY
Tiffany Co Diamond Ring Center diamond is 3.01 carat G.I.A. certified Fancy Vivid Yellow
Category

2010s American Artist Solitaire Rings

Materials

Yellow Diamond, Platinum

1970s Tiffany Co. Emerald and Diamond 18k Yellow Gold Earrings
By Tiffany Co.
Located in Miami, FL
quality. Details: ✔ Designer: Tiffany & Co. ✔ Era: 1970's ✔ Stone: Emerald, White Diamonds ✔ Center
Category

20th Century American Retro Drop Earrings

Materials

Diamond, Emerald, White Diamond, 18k Gold, Yellow Gold, Gold

Tiffany Co. GIA 3.60 Carat Colombian Emerald Diamond Platinum Cocktail Ring
By Tiffany Co.
Located in Stamford, CT
Experience the opulent allure of our original early 1900s Tiffany & Co Emerald and diamond Art Deco
Category

Early 20th Century Cocktail Rings

Materials

Diamond, Emerald, Platinum

TIFFANY Co. Forever Platinum 2.2mm Half Circle Diamond Band Ring 5
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY & Co. Forever Platinum 2.2mm Half Circle Diamond Band Ring 5 Metal: Platinum Size: 5 Band
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Tiffany Co. Art Deco Platinum Cushion Sapphire Diamond Ring
By Tiffany Co.
Located in New York, NY
A rare and pristine Art Deco cushion sapphire platinum diamond ring by Tiffany & Co. circa 1925
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

Tiffany Co Turquoise Diamond Gold Platinum Butterfly and Flowers Brooch
By Tiffany Co.
Located in New York, NY
and approx. 0.28ctw in G/VS diamonds. Brooch measures 1.5" in diameter. Marked Tiffany & Co, Plat, 750
Category

20th Century American Brooches

Materials

Diamond, Turquoise, Gold, Platinum

GIA Certified Tiffany Co. 1.80 Carat Diamond Solitaire Engagement Ring E/VS2
By Tiffany Co.
Located in Chicago, IL
This exceptional diamond solitaire engagement ring is an authentic creation by Tiffany Co
Category

2010s American Contemporary Engagement Rings

Materials

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

Tiffany Co. Rose Gold Diamond Mini Victoria Key Pendant
By Tiffany Co.
Located in New York, NY
Tiffany Co. Rose Gold Diamond Mini Victoria Key Pendant PRIMARY DETAILS SKU: 150258 Listing
Category

21st Century and Contemporary Pendant Necklaces

Materials

Rose Gold

Tiffany Co. Signed Diamond Platinum Tennis Necklace with Heart-shaped Clasp
By Tiffany Co.
Located in New York, NY
This platinum necklace by Tiffany & Co. features approximately 5.45 carats of full-cut diamonds
Category

Early 2000s Choker Necklaces

Materials

Diamond, Platinum

Tiffany Co. s Atlas x Closed Circle Pendant with Pavé Diamonds
By Tiffany Co.
Located in Bethesda, MD
From Tiffany & Co, this pendant is from the Atlas Collection. • Designer: Tiffany & Co. • Metal: 18
Category

2010s Pendant Necklaces

Materials

Diamond, White Gold

Vintage 1940s Retro Tiffany Co. Leaf Brooch with Sapphires and Diamonds
By Tiffany Co.
Located in New York, NY
Finely crafted in 18k yellow gold with Round Brilliant cut Diamonds weighing a total of
Category

Vintage 1940s Retro Brooches

Materials

Diamond, Sapphire, 18k Gold

Tiffany Company Diamond Vannerie Basket Weave 18 Karat Yellow Gold Earrings
By Tiffany Co.
Located in Boca Raton, FL
These elegant 18k yellow gold Tiffany Co. Vannerie Diamond Basket Weave earrings feature a
Category

Late 20th Century Modern Clip-on Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Tiffany Co. Vintage 18K Yellow Gold Diamond and Turquoise Ring TI04-112525
By Tiffany Co.
Located in Southampton, PA
This vintage Tiffany & Co. ring is instantly captivating. At the center of the 18K Yellow Gold
Category

21st Century and Contemporary Fashion Rings

Materials

Turquoise, Diamond

Tiffany Co. White Gold Yellow Gold Diamond Lock Bracelet
By Tiffany Co.
Located in New York, NY
Tiffany Co. White Gold Yellow Gold Diamond Lock Bracelet PRIMARY DETAILS SKU: 150703
Category

21st Century and Contemporary More Bracelets

Materials

White Gold

Tiffany Co Elsa Peretti Open Heart 18k Gold Diamond Pendant Necklace
By Tiffany Co.
Located in New York, NY
An 18k yellow gold open heart pendant necklace , designed by Elsa Peretti for Tiffany & Co. Pendant
Category

20th Century Drop Necklaces

Materials

Diamond, 18k Gold

Tiffany Co. Platinum Diamond Elsa Peretti Open Heart Pendant
By Tiffany Co.
Located in New York, NY
Tiffany Co. Platinum Diamond Elsa Peretti Open Heart Pendant PRIMARY DETAILS SKU: Z151186
Category

21st Century and Contemporary Pendant Necklaces

Materials

Platinum

Tiffany and Co Solitaire Diamond Ring Princess Cut .26ct Platinum
By Tiffany Co.
Located in East Brunswick, NJ
Tiffany and Co Solitaire Diamond Ring Princess Cut .26ct Platinum This authentic Tiffany & Co
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

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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.