Swarovski Elements Crystal Heart Siam Red Pendant w/ Rhodium Sterling Silver Adjustable Chain Necklace 16" Necklace is made of Rhodium plated 925 Sterling Silver (stamped), the pendant connector is made of 925 sterling silver (stamped) and the pendant is using the Swarovski Elements Crystal Using Swarovski Elements 6228 18mm Siam Red Heart Crystal as the pendant. Sparkling and Fancy! Heart Pendant Size (included ring) is approximately 26mm x 18mm Necklace is 16 inches with 2 inches extender, can be adjusted to 18 inches