Compare black diamonds for an engagement ring. Explore other dark gemstones like Black Spinel or Onyx. Black Diamond Buying Guide: What You Need to Know
Black diamonds are evaluated differently than the standard "4Cs" used for colorless stones. Standard Diamond Black Diamond Graded D to Z (colorless is best) Assigned a single grade: "Fancy Black" Clarity Valued for lack of inclusions Valued for high density of inclusions Sparkle Maximized through light reflection Replaced by a mirror-like surface luster Price Typically $5,000+ per carat (high grade) Natural: $3,000–$5,000 ; Treated: $100–$200 per carat Darker Diamonds
Historically, black diamonds were often overlooked or even considered "cursed". Compare black diamonds for an engagement ring
Some scientists suggest carbonados may have originated from outer space , arriving on Earth via meteorite impacts billions of years ago. Standard Diamond Black Diamond Graded D to Z
These are polycrystalline, meaning they are composed of millions of tiny crystals fused together rather than one single crystal. They are found almost exclusively in Brazil and the Central African Republic.
Black diamonds differ from white diamonds not in their chemical makeup—both are pure carbon—but in their physical structure.