The Velocità Tennis Necklace is handcrafted with approximately 81 carats of white sapphire and 25 grams of 18k yellow gold vermeil. The necklace is 41 cm (16 inches) with an additional 2.5cm (1 inch) extension chain. THIS LIMITED EDITION PIECE IS MADE TO ORDER. PLEASE ALLOW A 4-6 WEEK LEAD TIME FOR PRODUCTION AND SHIPPING.