Gold Buyers Boca Raton | Diamond Buyers Boca Raton | http://www.blackthorngold.com. Blackthorn Gold is Boca Raton's leading source for selling or buying gold and diamond jewelry. For over 40 years they have been providing Boca Raton residents as well as surrounding communities with the most accurate Gold Buying and Diamond Buying appraisals. If your looking to sell and or buy your gold or diamonds then contact Blackthorn Gold at 561-394-5639 or visit them at their convenient store location at: 124 NE 2nd Street, Boca Raton, FL 33432