Buy and Sell Diamonds

Sell your GIA diamonds and AGS certified diamonds in our store, located centrally in Houston, TX! Stop by the store or find Houston Coin Buyer on Facebook today and we'll let you know what your diamonds are worth! Houston Coin Buyer is now buying diamonds in all cuts and sizes; we even buy diamonds as large as 3 or more carats! Houston Coin Buyer is the top destination for fair prices on your diamonds!

Bring your GIA, AGS and EGL certified diamonds to our Houston coin store and we'll give you a no-charge, no-strings-attached appraisal! We rate diamonds based on their cut, clarity and carat weight, and give you an honest appraisal of your diamond's true value. We pay especially well for diamonds with AGS, EGL and GIA certs, as well as fancy color diamonds, ideal cut diamonds, and diamonds larger than 0.75 carats!

Our diamond appraisal service is complimentary and you have no obligation to sell, but our appraisals always come included with an offer to buy your diamonds at the appraised price. If you choose not to sell, the appraisal is still complimentary: all we ask in return is that you keep us in mind in the future for all of your gold, coin, jewelry and diamond purchasing needs!

We buy many other precious stones as well, including rubies, sapphires, emeralds, topaz and more! We even buy diamond jewelry; bring in gold jewelry with diamond settings and we'll pay you for both the gold and the stones! You have nothing to lose and everything to gain! Bring your precious stones and diamond jewelry down to Houston Coin Buyer and find out how much money you could really be getting for your diamonds and gemstones!