Updated as of June 2026
Diamond price and value
What drives Diamond value
The biggest price levers are color saturation and cut, followed by clarity and carat weight. A well cut, vividly colored stone of modest size often beats a larger dull one. Note that diamond is commonly treated (typically untreated, clarity enhancement or hpht color (some stones)), and untreated stones command a premium.
How to buy Diamond without overpaying
Buy from a seller that states treatment and origin, ask for a lab report on higher-value stones, and compare the same carat and color across two or three retailers before committing.
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How much is Diamond per carat?
Diamond generally costs $1,000 to $15,000 per carat. Top color and clarity push toward the high end, while included or pale stones sit lower.
Is Diamond a good value?
Diamond can be excellent value when you prioritize color and cut over carat weight. Always compare a certified stone against an uncertified one before deciding.
Why does Diamond price vary so much?
Color saturation, clarity, cut quality, carat weight, origin, and treatment all move the price. Common treatments for this stone: Typically untreated, Clarity enhancement or HPHT color (some stones).