4 Carat Oval Diamond
2010s Stud Earrings
Diamond, Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Fashion Rings
Blue Sapphire, White Diamond, Diamond, White Gold, 18k Gold
2010s American Contemporary Cocktail Rings
Diamond, Tanzanite, 14k Gold, White Gold
21st Century and Contemporary Three-Stone Rings
Diamond, Blue Sapphire, White Gold
21st Century and Contemporary American Modern Wedding Rings
Diamond, 18k Gold, White Gold
21st Century and Contemporary Contemporary Multi-Strand Necklaces
Diamond, Peridot, Gold, 18k Gold, White Gold
2010s American Contemporary Stud Earrings
Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Modern Fashion Rings
Diamond, Tanzanite, 14k Gold
2010s Link Necklaces
Diamond, Emerald, 14k Gold
21st Century and Contemporary American Contemporary Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
20th Century Chinese Art Deco Fashion Rings
Diamond, Emerald, Opal, Gold, 14k Gold, Yellow Gold
21st Century and Contemporary American Art Deco Chain Necklaces
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
Vintage 1910s Edwardian Cocktail Rings
Diamond, Sapphire, Gold, 18k Gold, White Gold
2010s American Modern Cocktail Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
2010s American Engagement Rings
Diamond, 14k Gold, White Gold
1990s Link Necklaces
Diamond, Ruby, 18k Gold, Yellow Gold
Vintage 1980s Italian Contemporary Dangle Earrings
Diamond, 18k Gold
21st Century and Contemporary Cocktail Rings
Yellow Diamond
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Platinum
2010s Italian Modern Loose Gemstones
Diamond, White Diamond
2010s Art Deco Engagement Rings
Blue Sapphire, Gold
2010s Unknown Contemporary Cocktail Rings
Padparadscha Sapphire , Sapphire, White Diamond, Diamond, Rose Gold, 18k...
2010s Solitaire Rings
Diamond, Emerald, 18k Gold, White Gold
2010s American Hoop Earrings
Diamond, 14k Gold, White Gold
21st Century and Contemporary Indian Contemporary Bridal Rings
Diamond, White Diamond, 14k Gold, White Gold
2010s Solitaire Rings
Diamond, Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary Indian Contemporary Pendant Necklaces
Diamond, White Diamond, Yellow Gold, 10k Gold
2010s American Modern Cocktail Rings
Blue Sapphire, 18k Gold
Late 20th Century American Contemporary Cocktail Rings
White Diamond, Emerald, 14k Gold, Yellow Gold
2010s Stud Earrings
Diamond, Emerald, 14k Gold, Yellow Gold
2010s Stud Earrings
Diamond, Emerald, 14k Gold, Yellow Gold
2010s Stud Earrings
Emerald, Diamond, White Gold, 14k Gold
1990s Art Deco Cocktail Rings
Diamond, Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary Chain Necklaces
Diamond, Ruby, 14k Gold, Yellow Gold
2010s Italian Modern Engagement Rings
Diamond, Alexandrite, Platinum
2010s Tennis Bracelets
Aquamarine, Diamond, 10k Gold, Yellow Gold
21st Century and Contemporary American Modernist Engagement Rings
Diamond, 18k Gold, White Gold
Vintage 1920s Art Deco Dangle Earrings
Diamond, Ruby, 18k Gold, Platinum
20th Century Chinese Modern Fashion Rings
Diamond, Morganite, Rose Gold, Gold, 14k Gold, White Gold
20th Century Chinese Contemporary Fashion Rings
Diamond, Blue Sapphire, Aquamarine, Gold, 18k Gold, White Gold
2010s Engagement Rings
White Gold
Antique Late 19th Century Victorian Drop Earrings
Coral, Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary Fashion Rings
Diamond, White Diamond, Zircon, Gold, 14k Gold, White Gold
21st Century and Contemporary French Cocktail Rings
Diamond, Rubelite, 18k Gold, Yellow Gold
2010s Loose Gemstones
Diamond
2010s Cluster Rings
Diamond, 18k Gold, White Gold
2010s Hong Kong Contemporary Tennis Bracelets
Diamond, White Diamond, 18k Gold, White Gold
2010s Hong Kong Contemporary Band Rings
Diamond, White Diamond, 18k Gold, White Gold
2010s British Artisan Engagement Rings
Diamond, Morganite, 18k Gold, Rose Gold
2010s American Modern Engagement Rings
Diamond, Sterling Silver
2010s American Modern Cocktail Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, 14k Gold, White Gold, S...
2010s American Modern Fashion Rings
Diamond, White Diamond, 14k Gold, White Gold, Yellow Gold
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4 Carat Oval Diamond For Sale on 1stDibs
How Much is a 4 Carat Oval Diamond?
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
- What is a 4 carat diamond worth?1 Answer1stDibs ExpertSeptember 28, 2021A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.
- 1stDibs ExpertAugust 24, 2021A 2 carat oval diamond is approximately 10.23mm × 6.82mm × 4.16mm in size. These diamonds usually have an approximate face-up area of 57.21 mm². Find a variety of diamonds on 1stDibs.