1 Carat Red Diamond
2010s Hong Kong Art Nouveau Engagement Rings
Diamond, White Diamond, Ruby, 18k Gold
Vintage 1980s Swiss Modern Wrist Watches
Diamond, Stainless Steel
21st Century and Contemporary Thai Contemporary Pendant Necklaces
Diamond, White Diamond, Ruby, 18k Gold, White Gold
1990s Thai Art Deco Cocktail Rings
Diamond, Ruby, 14k Gold, White Gold, Enamel
1990s Thai Art Deco Cocktail Rings
Diamond, Ruby, 14k Gold, White Gold, Enamel
1990s Thai Art Deco Cocktail Rings
Diamond, Ruby, White Gold, Enamel
Vintage 1960s Unknown Retro Retro Bracelets
Diamond, Ruby, Gold, 18k Gold
21st Century and Contemporary Thai Modern Pendant Necklaces
Diamond, White Diamond, Sterling Silver, Enamel
2010s Contemporary Engagement Rings
Diamond, Ruby, White Gold, Rhodium
21st Century and Contemporary American Contemporary Engagement Rings
Brown Diamond, Pink Diamond, Diamond, Rose Gold, White Gold, 18k Gold
21st Century and Contemporary Thai Contemporary Fashion Rings
White Diamond, Diamond, Enamel, Rose Gold, 18k Gold
21st Century and Contemporary Thai Contemporary Fashion Rings
White Diamond, Diamond, Enamel, Rose Gold, 18k Gold
21st Century and Contemporary American Modern Hoop Earrings
Diamond, White Diamond, Ruby, White Gold, 18k Gold
21st Century and Contemporary Indian Modern Pendant Necklaces
White Diamond, Ruby, 18k Gold, White Gold, Rhodium
2010s Italian Modern Link Bracelets
Black Diamond, Gold, Titanium
21st Century and Contemporary Indian Contemporary Drop Earrings
Diamond, White Diamond, Ruby, 18k Gold, White Gold
21st Century and Contemporary Indian Contemporary Pendant Necklaces
Diamond, White Diamond, Garnet, 14k Gold, Yellow Gold
21st Century and Contemporary Indian Contemporary Pendant Necklaces
Diamond, White Diamond, Ruby, 18k Gold, White Gold
21st Century and Contemporary American Contemporary Cocktail Rings
Ruby, White Diamond, 18k Gold, White Gold
21st Century and Contemporary Indian Contemporary Pendant Necklaces
Diamond, White Diamond, Ruby, 18k Gold, White Gold
21st Century and Contemporary American Contemporary Link Bracelets
Diamond, White Diamond, Ruby, 14k Gold, Yellow Gold
21st Century and Contemporary Thai Contemporary Pendant Necklaces
Diamond, White Diamond, 18k Gold, Yellow Gold, Enamel
Late 20th Century Contemporary Three-Stone Rings
Coral, Diamond, Platinum
21st Century and Contemporary Thai Contemporary Dangle Earrings
Diamond, White Diamond, Brown Diamond, Garnet, 18k Gold, Rose Gold, Whit...
21st Century and Contemporary Indian Contemporary Pendant Necklaces
Diamond, White Diamond, 18k Gold, White Gold, Enamel
21st Century and Contemporary American Contemporary Fashion Rings
White Diamond, Spinel, 18k Gold, White Gold
21st Century and Contemporary Engagement Rings
Diamond, Ruby, Gold, 14k Gold, White Gold
21st Century and Contemporary Engagement Rings
Diamond, Ruby, Platinum
Vintage 1930s Unknown Art Deco Retro Bracelets
Diamond, Gold
2010s Modern Engagement Rings
Diamond, White Diamond, Ruby, 18k Gold, White Gold, Rose Gold
2010s American Contemporary Band Rings
Diamond, Sterling Silver
1 Carat Red Diamond For Sale on 1stDibs
How Much is a 1 Carat Red 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 1 carat diamond worth?1 Answer1stDibs ExpertFebruary 22, 2021Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
- 1stDibs ExpertSeptember 28, 2021A 1-carat pink diamond’s worth depends on the color intensity and carat. High-quality pinks are the most expensive natural diamond color today. The price can vary from $10,000 to $70,000 per carat for an intense pink. On 1stDibs, you will find a variety of pink diamond jewelry from different periods.
- 1stDibs ExpertApril 5, 2022The term 1-carat diamond earrings means a pair of earrings set with diamond gemstones that have a total weight of 200 milligrams. Depending on the design, each earring may hold one diamond or several smaller gems. You'll find a variety of diamond gemstone earrings on 1stDibs.
- 1stDibs ExpertOctober 5, 2021What a 1-carat black diamond is worth varies according to the cut, type (natural/treated) and the demand and supply. Both natural and treated black diamonds increase in value as demand increases. It ranges from $100 to $3,000 per carat. On 1stDibs, you can find a variety of unique and designer black diamond jewelry & watches from different periods to choose from.
- 1stDibs ExpertOctober 19, 2021The average cost of a pair of diamond stud earrings with a total carat weight of 1-carat is $2,495. Depending on the clarity, cut and color of the diamond, the price and other details may vary. On 1sDibs, shop for antique and vintage diamond earrings.
- 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 ExpertFebruary 22, 2021The average cost of a pair of 1-carat diamond earrings is around $2,500. However, that price can change depending on the quality of the diamonds and the brand.
- 1stDibs ExpertSeptember 16, 2024How much a 1-carat blue diamond is worth depends on its cut, clarity and color. Human-made synthetic blue diamonds of that size are often worth less than $10,000, while natural examples sourced through mining are generally valued at much higher prices. If a gemstone is set in a piece of jewelry, it may have additional value due to the precious metals, the maker of the piece, its age and other factors. Because so many variables can impact the potential value of a blue diamond, experts generally recommend having a certified appraiser or experienced jeweler assist with the valuation process. On 1stDibs, explore a diverse assortment of blue diamond jewelry.