Jewelry Buyer
(773) 490-9828 Call 773-490-9828 for a quote. Text 773-490-9828 for a quote.

GIA Diamond Buyer

Mike Pays Top Dollar for GIA Diamonds

Mike J. Owner Diamonds that have a GIA certificate will be easier to sell because the diamond industry only trusts GIA laboratory. Any other lab certificate is a good starting point for a rough estimate of value, but needs to be examined in person to determine the true quality.

The only really reputable and accurate certificate out there is GIA (Gemological Institute of America). Established in 1931, GIA is the company that invented the current 4 C’s grading system that is used around the world today. All dealers in the business trust a GIA certificate and even trade amongst other dealers without even seeing the stone in person!

The bottom line is, if you have a certificate from another company, it is almost certainly incorrect. Depending on which lab, it could be over graded from 1 to 5 grades! This will have a tremendous impact on the cash value of your diamond. EGL USA and AGS tend be the closest to accurate and are usually only off by 1 color grade and sometimes they are correct on clarity. Any other diamond certificate you have, is a good starting point for reference, but cannot be taken seriously. So for example, if you contact me with a 1ct round diamond with a GIA certificate stating G color SI1 clarity my offer would be around $3000 to $4000 depending on cut grade, polish, symmetry and fluorescence.

However, if you contacted me with the same stone except it has an IGI certificate, I would need to assume the stone is I color and I1 clarity and the estimate would be $1500 to $2500.

- Owner Mike J.


Call or Text Mike with pictures of your items, any accompanying paperwork such as certificates, appraisals or any other useful details about your items and you will receive a rough estimate usually within the hour.

Pictures: You can simply take a couple good close up photos of your items. If you have photos already, feel free to use our easy form that's sent directly to me, or text them directly to me at (773) 490-9828.

Jewelry Designers we buy include but are not limited to: Bvlgari, Cartier, Chanel, Chopard, David Webb, David Yurman, Graff, Hermes, Georg Jensen, Kabana, Ilias Lalaounis, Ippolita, Levian, John Hardy, Lagos, Marco Bicego, Mikimoto, Piaget, Roberto Coin, Rolex, Tiffany & Co., Van Cleef & Arpels.

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