Four Carat Princess Cut Diamond
2010s Singaporean Pendant Necklaces
Diamond, 18k Gold, White Gold
2010s Hong Kong Modern Cocktail Rings
Diamond, 18k Gold, Rose Gold
21st Century and Contemporary Hong Kong Art Deco Cocktail Rings
Diamond, Ruby, 18k Gold, White Gold
Late 20th Century Pendant Necklaces
Diamond, 14k Gold, Platinum
Early 2000s Engagement Rings
Diamond, 14k Gold, White Gold
20th Century Stud Earrings
Diamond, 14k Gold, White Gold
2010s Indian Contemporary Solitaire Rings
Diamond, Gold, 18k Gold
2010s Hong Kong Modern Cocktail Rings
Diamond, 18k Gold, White Gold
21st Century and Contemporary Contemporary Pendant Necklaces
Diamond, 14k Gold, Rose Gold, White Gold
1990s American Retro Cocktail Rings
Diamond, White Diamond, Black Diamond, Brown Diamond, Gold, 14k Gold, Ro...
2010s Singaporean Engagement Rings
Diamond, 18k Gold, White Gold
21st Century and Contemporary American Modern Cocktail Rings
Diamond, White Diamond, Yellow Diamond, Pink Diamond, Gold, 18k Gold, Ro...
21st Century and Contemporary Indian Link Bracelets
Diamond, White Diamond, White Gold, Yellow Gold
21st Century and Contemporary Italian Contemporary Pendant Necklaces
Diamond, White Diamond, Platinum
2010s Modern Engagement Rings
Diamond, 14k Gold, White Gold
2010s Indian Modern Solitaire Rings
Diamond, Gold, 18k Gold, White Gold
21st Century and Contemporary Contemporary Engagement Rings
Diamond, Sapphire, Gold, 14k Gold, White Gold
Vintage 1950s English Fashion Rings
Sapphire, Diamond, Gold, 18k Gold, Yellow Gold, White Gold
1990s Unknown Art Deco Cufflinks
Diamond, 18k Gold, Yellow Gold
2010s Indian Modern Engagement Rings
White Diamond, Yellow Diamond, Gold, 18k Gold
21st Century and Contemporary Thai Contemporary Fashion Rings
White Diamond, Pearl, Rhodolite, 18k Gold, Rose Gold
21st Century and Contemporary Thai Contemporary Fashion Rings
White Diamond, Pearl, Peridot, 18k Gold, Rose Gold
21st Century and Contemporary Unknown Contemporary Pendant Necklaces
Diamond, Blue Sapphire, Gold, 18k Gold, White Gold
21st Century and Contemporary Modern Wedding Rings
Diamond, Gold, 14k Gold, White Gold
21st Century and Contemporary Indian Art Deco Engagement Rings
Diamond, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold
20th Century Unknown Art Deco Fashion Rings
Diamond, Sapphire, Platinum
20th Century North American Pendant Necklaces
Diamond, Tanzanite, 18k Gold, White Gold
20th Century Cluster Rings
Diamond, 14k Gold, White Gold
20th Century Art Nouveau Lever-Back Earrings
Diamond, Ruby, Tourmaline, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Solitaire Rings
Purple Sapphire, Sapphire, Diamond, White Gold, 18k Gold
21st Century and Contemporary European Contemporary Solitaire Rings
Diamond, Jade, Platinum
Late 20th Century Unknown Engagement Rings
Diamond, Gold, 14k Gold, White Gold
2010s North American Dangle Earrings
Aquamarine, Diamond, Peridot, Sapphire, Blue Sapphire, Yellow Sapphire, ...
21st Century and Contemporary Unknown Art Deco Cocktail Rings
Amethyst, Diamond, Yellow Gold
Vintage 1970s Italian Renaissance Band Rings
Diamond, White Diamond, Gold, White Gold, Yellow Gold, 18k Gold
Vintage 1980s Italian Baroque Revival Cocktail Rings
Diamond, White Diamond, Gold, White Gold, 18k Gold
Vintage 1960s Italian Modernist Choker Necklaces
Diamond, White Diamond, Gold, Yellow Gold, 18k Gold
2010s Italian Modern Pendant Necklaces
Diamond, Spinel, 18k Gold, White Gold
2010s Italian Modern Pendant Necklaces
Diamond, Spinel, 18k Gold, White Gold
2010s Italian Modern Pendant Necklaces
Diamond, Spinel, 18k Gold, White Gold
Vintage 1980s Unknown Band Rings
Diamond, 18k Gold, Yellow Gold
Vintage 1970s American Modernist Brooches
Diamond, Ruby, Sapphire, White Diamond, Blue Sapphire, Gold, White Gold,...
Mid-20th Century Swiss Modern Cocktail Rings
Diamond, Emerald, 18k Gold
Late 20th Century Engagement Rings
Diamond, 18k Gold, Yellow Gold
Late 20th Century Cocktail Rings
Diamond, Ruby, 18k Gold, White Gold
21st Century and Contemporary North American Artisan Stud Earrings
Diamond, Pearl, White Gold, Gold, 18k Gold
21st Century and Contemporary Modern Cocktail Rings
Diamond, White Diamond, Pink Sapphire, Gold, 18k Gold, White Gold
2010s American Contemporary Cocktail Rings
Diamond, Garnet, Rhodolite, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
21st Century and Contemporary American Modern Pendant Necklaces
Diamond, 14k Gold, 18k Gold, White Gold
21st Century and Contemporary European Contemporary Pendant Necklaces
Diamond, Sapphire, Platinum
21st Century and Contemporary European Contemporary Tennis Bracelets
Diamond, Sapphire, 18k Gold, White Gold
20th Century Art Deco Chandelier Earrings
Diamond, Emerald, Platinum
2010s German Art Deco Band Rings
Diamond, Emerald, 18k Gold, White Gold, Yellow Gold
2010s American Modern Engagement Rings
Diamond, Emerald, Gold, 14k Gold, White Gold
Early 20th Century Art Deco Pendant Necklaces
Diamond, Emerald, 14k Gold, White Gold
2010s Israeli Cocktail Rings
Diamond, Zircon, 14k Gold, Yellow Gold
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Four Carat Princess Cut Diamond For Sale on 1stDibs
How Much is a Four Carat Princess Cut 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.
- 1stDibs ExpertSeptember 28, 2021Like with most diamond products, the price of a 1-carat princess cut diamond can range dramatically. On 1stDibs, find 1-carat princess cut diamond rings, earrings, necklaces and bracelets starting at $999 to $16,500.
- 1stDibs ExpertNovember 8, 2023How big a 2-carat diamond with a princess cut is varies from piece to piece. However, the average size is 7 millimeters by 7 millimeters. The measurement is around 9/32 inches, so a 2-carat princess-cut diamond will be just a little over a quarter-inch in size. On 1stDibs, find an assortment of princess-cut diamond jewelry.