What it's Worth
Value rises sharply with size and quality: small accent diamonds are modest, while certified one-carat-plus stones bring thousands, and large, fine, GIA-graded diamonds reach five and six figures. The four Cs and certification drive value.
Small diamonds under $1,000; certified 1ct+ stones $2,000-$25,000; large fine GIA diamonds $50,000-$350,000+.
Our Sold Results
And Many More
Overview & History
Diamonds are valued on the 'four Cs' - carat weight, cut, color, and clarity - with certified stones (especially those graded by the GIA) and larger, finer diamonds commanding the strongest prices. Both loose, unmounted diamonds and diamonds set in rings and jewelry come to auction, where they reach a broad market of buyers and dealers. Austin Auction Gallery regularly sells fine diamonds, including individual stones realizing well into six figures.
Identifying & Marks
A diamond's value rests on carat weight, cut, color, and clarity; a GIA (or comparable) certificate documents these and significantly aids sale. Our specialists evaluate stones and recommend certification where it adds value.
FAQ
What is my Diamond worth?
Value rises sharply with size and quality: small accent diamonds are modest, while certified one-carat-plus stones bring thousands, and large, fine, GIA-graded diamonds reach five and six figures. The four Cs and certification drive value. Send photos for a free appraisal.
How is my Diamond valued?
A diamond's value rests on carat weight, cut, color, and clarity; a GIA (or comparable) certificate documents these and significantly aids sale. Our specialists evaluate stones and recommend certification where it adds value.
How do I sell my Diamonds?
Austin Auction Gallery sells fine and estate jewelry and offers free, no-obligation appraisals, reaching collectors, dealers, and retail buyers. Contact us to consign.