Investment Grade Diamond
2010s Unknown Contemporary Engagement Rings
Diamond, White Diamond, Pink Diamond, Platinum
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Emerald, Platinum
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond, Yellow Diamond
21st Century and Contemporary Unknown Contemporary Loose Gemstones
Diamond, Yellow Diamond
2010s Colombian Art Deco Choker Necklaces
Diamond, Emerald, 18k Gold
2010s American Engagement Rings
Diamond, Emerald, Platinum
2010s American Engagement Rings
Diamond, Emerald, Platinum
2010s American Contemporary Cocktail Rings
Diamond, Emerald, 14k Gold
2010s Italian Contemporary Cocktail Rings
Diamond, Emerald, Ruby, 18k Gold, White Gold
2010s American Contemporary Cocktail Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond
21st Century and Contemporary Unknown Contemporary Solitaire Rings
Yellow Diamond, Diamond
21st Century and Contemporary Unknown Art Deco Cocktail Rings
Diamond, Yellow Diamond, Gold, Yellow Gold, Platinum
2010s Unknown Contemporary Solitaire Rings
Diamond, White Diamond, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Indian Romantic Chain Necklaces
Diamond, 18k Gold
2010s Italian Modern Engagement Rings
Pink Diamond, White Diamond, Diamond, Platinum, Rose Gold, 18k Gold
2010s American Contemporary Pendant Necklaces
Diamond, White Diamond, Pink Diamond, Platinum
2010s American Contemporary Link Bracelets
Yellow Diamond, Blue Diamond, Pink Diamond, Brown Diamond, 18k Gold, Yel...
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond, Yellow Diamond
2010s American Contemporary Drop Earrings
Diamond, White Diamond, Yellow Diamond, 18k Gold, Platinum
21st Century and Contemporary Unknown Contemporary Loose Gemstones
Diamond, Yellow Diamond
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond, Yellow Diamond
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond
21st Century and Contemporary Modern Loose Gemstones
Brown Diamond
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond
2010s American Contemporary Band Rings
Diamond, Platinum
21st Century and Contemporary Unknown Modern Loose Gemstones
Diamond
21st Century and Contemporary Pendant Necklaces
Diamond, White Diamond, Opal, Black Opal, Fire Opal, Gold, 18k Gold, Yel...
21st Century and Contemporary American Modern Stud Earrings
Diamond, Gold, 18k Gold, White Gold
21st Century and Contemporary British Stud Earrings
Diamond, White Diamond, Emerald, Gold, 18k Gold, Yellow Gold
2010s American Contemporary Link Bracelets
Yellow Diamond, 18k Gold, Yellow Gold, Gold
21st Century and Contemporary Three-Stone Rings
Pink Diamond
2010s Colombian Art Deco Cocktail Rings
Emerald, White Gold, 18k Gold
20th Century American Art Deco Pendant Necklaces
Diamond, White Gold, Platinum
Mid-20th Century Modernist Wedding Rings
Diamond, 18k Gold, Yellow Gold
Vintage 1970s Art Deco Engagement Rings
Diamond, Sapphire
2010s Swiss Choker Necklaces
Diamond, 18k Gold
2010s American Engagement Rings
Diamond, Platinum
Early 2000s American Engagement Rings
Diamond, Platinum
2010s American Engagement Rings
Diamond, Platinum
21st Century and Contemporary Engagement Rings
Diamond, Platinum
21st Century and Contemporary Hong Kong Contemporary Loose Gemstones
Yellow Diamond
2010s Israeli Loose Gemstones
Diamond
2010s Israeli Loose Gemstones
Diamond
2010s Italian Modern Engagement Rings
White Diamond, Diamond, 18k Gold
2010s American Contemporary Link Bracelets
Yellow Diamond, Yellow Gold, 18k Gold
2010s American Modern Engagement Rings
Diamond
2010s American Contemporary Drop Earrings
Diamond, White Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Italian Modern Engagement Rings
Diamond, White Gold
2010s American Contemporary Drop Earrings
White Diamond, Yellow Diamond, 18k Gold, Platinum
2010s Italian Modern Engagement Rings
Agate, Diamond, White Diamond, Emerald, Platinum
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Yellow Diamond, 18k Gold
2010s Italian Contemporary Cocktail Rings
Emerald, Diamond, White Gold, 18k Gold
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Platinum
21st Century and Contemporary Italian Three-Stone Rings
Pink Diamond, Platinum
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Emerald, Platinum
2010s American Contemporary Link Bracelets
Yellow Diamond, 18k Gold
2010s American Contemporary Drop Necklaces
Diamond, Platinum
Mid-20th Century British Retro Brooches
Diamond, Gold, 18k Gold, Yellow Gold, Platinum, Enamel
2010s South African Contemporary Engagement Rings
Diamond, 18k Gold, White Gold
- 1
Investment Grade Diamond For Sale on 1stDibs
How Much is a Investment Grade 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 ExpertNovember 6, 2023The best cut grade for a diamond varies by rating system. The Gemological Institute of America (GIA) ranks the best cuts as Excellent, while the International Gemological Institute (IGI) has Ideal at the top of its rating chart. Keep in mind that only round brilliant-cut diamonds receive cut grades. There are no ratings for other cuts like the marquise or the emerald. And remember, if you're shopping for an antique diamond ring, instead of dedicating yourself to finding the perfect cut or stone, focus on the one that best expresses your personal style. Explore a diverse assortment of diamond jewelry on 1stDibs.