Swarovski Tennis Deluxe Ruthenium Necklace, 5517113. Since 1895, founder Daniel Swarovski’s mastery of crystal cutting has defined the company. His enduring passion for innovation and design has made it the world’s premier jewellery and accessory brand. Today, the family carries on the tradition of delivering extraordinary everyday style to women around the world. Taking its inspiration from Swarovski’s bestselling Tennis bracelet, this ruthenium-plated all-around necklace sparkles with dark crystals for a unisex look. Easy to mix and match, it offers elegant simplicity and would make a perfect gift. All Swarovski articles purchased from C W Sellors are lovingly and securely dispatched with elegant Swarovski jewellery packaging.