Pentagon Diamond
2010s Italian Artisan Pendant Necklaces
Black Diamond, Brown Diamond, Pearl, South Sea Pearl, Gold, 18k Gold
21st Century and Contemporary Cocktail Rings
1990s American Contemporary Cocktail Rings
Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary Indian Art Deco Drop Earrings
Diamond, South Sea Pearl, 18k Gold, White Gold
1990s American Lever-Back Earrings
Diamond, 14k Gold, White Gold
21st Century and Contemporary Cuff Bracelets
Amethyst, Diamond, Ruby, Palladium
21st Century and Contemporary Hong Kong Modern Pendant Necklaces
Diamond, 18k Gold
20th Century Contemporary Hoop Earrings
Diamond, 14k Gold, White Gold
21st Century and Contemporary American Modern Pendant Necklaces
Diamond, Yellow Diamond, 18k Gold, Platinum, Yellow Gold
21st Century and Contemporary American Contemporary Pendant Necklaces
Diamond, Yellow Diamond, 18k Gold, White Gold
2010s Singaporean Dome Rings
Diamond, 18k Gold, White Gold
21st Century and Contemporary Indian Art Nouveau Fashion Rings
Diamond, Yellow Gold, 18k Gold
21st Century and Contemporary Cluster Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow ...
21st Century and Contemporary Unknown Modern Engagement Rings
Quartz, Yellow Gold, 14k Gold
21st Century and Contemporary British Contemporary Cocktail Rings
Diamond, White Diamond, Opal, Quartz, Tsavorite, Gold, 18k Gold, Rose Gold
1990s Swiss Clip-on Earrings
Diamond, Emerald, 18k Gold, Yellow Gold
21st Century and Contemporary British Art Deco Drop Necklaces
White Diamond, Yellow Diamond, 18k Gold, White Gold
20th Century Tennis Bracelets
Diamond, 14k Gold, White Gold
Vintage 1920s French Art Deco Retro Bracelets
Diamond, Platinum
21st Century and Contemporary Swiss Artisan Pendant Necklaces
Diamond, 18k Gold
21st Century and Contemporary British Cluster Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Gold, ...
20th Century Unknown Contemporary Cocktail Rings
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold
Vintage 1980s French Clip-on Earrings
Diamond, Sapphire, 18k Gold, Yellow Gold
21st Century and Contemporary Thai Contemporary Drop Earrings
Amethyst, White Diamond, Topaz, Blue Topaz, Gold, 18k Gold, White Gold
2010s American Modern Engagement Rings
White Diamond, 18k Gold
2010s American Modern Engagement Rings
White Diamond, 18k Gold
2010s Irish Contemporary Pendant Necklaces
Emerald, Diamond, 18k Gold
21st Century and Contemporary American Contemporary Engagement Rings
White Diamond, Blue Sapphire, 18k Gold
2010s Cuff Bracelets
Late 20th Century French Link Necklaces
Diamond, 18k Gold
20th Century More Rings
Amethyst, White Diamond, Diamond, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Indian Contemporary Cluster Rings
Diamond, White Diamond, 14k Gold, White Gold
20th Century More Rings
Amethyst, White Diamond, 18k Gold, Yellow Gold, Platinum
20th Century More Rings
Amethyst, White Diamond, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Cocktail Rings
White Diamond, Emerald, Platinum
Vintage 1940s Retro Cocktail Rings
Diamond, Ruby, 14k Gold
2010s American Pendant Necklaces
Citrine, Diamond, 14k Gold, Yellow Gold
Mid-20th Century Unknown Art Deco Drop Earrings
Blue Sapphire, Diamond, 18k Gold
Vintage 1920s American Art Deco Engagement Rings
Diamond, Platinum
Early 20th Century Art Deco Engagement Rings
Diamond, Emerald, Platinum
Mid-20th Century Unknown Art Deco Chandelier Earrings
Diamond, Sapphire, Platinum
2010s Belgian Contemporary Fashion Rings
Tourmaline, Brown Diamond, Diamond, Amethyst, White Gold, 18k Gold
21st Century and Contemporary American Engagement Rings
White Diamond, Platinum
2010s Israeli Cluster Rings
Diamond, 18k Gold, Yellow Gold
2010s Israeli Three-Stone Rings
Diamond, 18k Gold, White Gold, Yellow Gold
Vintage 1930s Unknown Art Deco Brooches
Diamond, Emerald, 14k Gold, Yellow Gold
Vintage 1930s American Art Deco Brooches
Diamond, Emerald, Ruby, Sapphire, Platinum
1990s American Lever-Back Earrings
Diamond, 14k Gold, White Gold
Vintage 1980s Unknown Lever-Back Earrings
Ruby, 18k Gold
2010s American Engagement Rings
Diamond, Ruby, 14k Gold, White Gold
21st Century and Contemporary Modern Three-Stone Rings
Diamond, Emerald, Platinum
Platinum
21st Century and Contemporary American Cocktail Rings
Diamond, Platinum
American More Rings
Diamond
Vintage 1930s Art Deco Solitaire Rings
Diamond, White Diamond, Platinum
Pentagon Diamond For Sale on 1stDibs
How Much is a Pentagon 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.