Neo Renaissance cufflinks feature a dazzling 2.0mm round bezel set diamond, surrounded by regal emblems that harken back to the shields of King Arthur's Round Table. Cufflink box is included. * Brand: Carl Blackburn https://carlblackburn.com * Country/Region of Manufacture: USA * Material: 18k gold, Sterling Silver, diamonds * Hallmarks: Carl Blackburn, CB S&G (both inside rectangles) CB (logo), 18K, 925 * Size: .70 inch (square shape) * Weight: 23 grams. * Receipt: No, this was a gift. * Condition: Excellent, used only a few times. Carl Blackburn belongs to that select group of jewelry designers whose work is showcased in both metropolitan art galleries and fine high-street stores. Born into a family of jewelers, Blackburn began his career in the late 1980's and gradually built a devoted clientele. Since 2003, he has operated an artisans’ studio that’s displayed a virtuoso talent in producing iconic pieces forged by Blackburn’s passion for nature, history, architecture, and fashion–and which have been featured in dozens of fine jewelry magazines in the United States and around the world. Lowball offers will not be accepted. Sorry in advance if I don’t respond to a question right away. Not trying to be rude, it’s just that I work full time + so I’m only on a few times a week. Use the make an offer button if you are interested and want a quick response. Last photo is of the designer, Carl Blackburn.