This is an authentic DAVID YURMAN Sterling Silver Hampton Blue Topaz Diamond Bypass Châtelaine Bypass Ring 47 4. This ring is crafted of sterling silver and features two blue topaz stones that bypass each other. The ring is then accented with diamonds in the classic chatelaine motif approximately weighing 0.07 carats. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.