GIA Certified Diamonds

Why We Buy and Sell GIA Certified Diamonds, Wedding Bands, and Engagement Rings at Gray & Sons?

We are a local South Florida boutique offering a wide selection of GIA certified diamond jewelry, engagement rings, diamond bracelets, diamond necklaces, pendants, and loose diamonds to buy online or in our Miami Beach showroom. Conveniently located across the Bal Harbor shops our diamond jewelry comes with a GIA certificate and a one year warranty. We have in-house Gemologists at our boutique and are known as the top GIA Diamond dealer near Plantation, Boca Raton, Deerfield, West Palm Beach, and Pembroke Pines.

Top GIA Certified Diamond Dealer in South Florida

Any of the GIA certified diamonds you see here can be sold in the setting as it is shown or for a lower price if you want to just buy the loose diamond. We can also change the setting if you are in love with the diamond but would prefer a different setting. Call us for price quote and details.

Our curated collection of GIA diamond rings and diamond eternity bands offers a variety of cuts and sizes for any style. Gray & Sons may not have the largest selection of GIA Certified diamonds, but we sell the best diamonds at the best price! Why? We buy our diamond studs, diamond rings, engagement rings, and diamond jewelry from the public in Coral Gables, Brickell Avenue, Bal Harbor, as well as from all over the United States. There is no middle man involved. Our diamond specialists and jewelry experts handle the entire process with professionalism. The diamonds we buy are recut, polished, then sent to obtain a GIA certification. We then sell the diamond piece back on the market. If you want the best diamonds at the best price Gray & Sons Jewelers has it. By selling GIA diamonds as we have been for 30 years for the best price in the nation, we give a new life to every diamond. Get your diamond piece with us and feel great about your new accessory every time!

The #1 Place to Buy Engagement Rings and Diamond Eternity Bands

We send all our diamonds jewelry to GIA for certification because they are the gold standard world wide for diamonds. Since established in 1931, GIA has proved themselves as the world’s foremost grading and certification authority on diamonds, colored stones, and pearls. As a nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry. In 1953, the GIA developed its International Diamond Grading System and the Four Cs (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. The key to GIA– they don't buy, sell, trade or cut diamonds – they don't value (how much is my diamond worth?) so there is no conflict of interest, ulterior motives for higher or lower grading. Multiple diamond gemologists score each diamond and must agree. This avoids "pay offs", dishonest deals for exaggerated color or clarity grading. Their integrity over the years has earned them the ‘Gold Standard’ reputation worldwide. When you want to sell your GIA Diamond to a certified dealer look to Gray & Sons. Our Miami showroom in Miami beach across from Bal Harbour shops is the top buyer and seller of all GIA certified diamond studs and diamond engagement rings .

Why GIA Diamonds?

The Gemological Institute of America – The Gold Standard Worldwide for Diamonds. The GIA Laboratory provides a variety of gem grading and identification reports. Diamond grading reports for unmounted natural diamonds determine their key characteristics: color, clarity, cut and carat weight. With current deceptive practices all over the world today it is most important to buy a diamond with a GIA certificate to guarantee that you are not buying a man made diamond, or a diamond that has been treated with high heat and pressure to enhance the color ( HPHT ). GIA issues a complete Diamond Grading Report. Gray & Sons goes an extra step and pays GIA to engrave the certificate number on the diamond after grading – to offer our customers peace of mind to know – the “Pedigree” delivered with their diamond is really for THAT diamond. We’re the only jeweler in all of Miami Beach to offer this deal!