Beauniq Solid Sterling Silver Rhodium Plated Simulated Blue Opal Dolphin Anchor Pendant Necklace Unsure what length chain to buy? 18 inches is the standard length and will look great on most women To purchase the pendant WITHOUT the chain, choose the "0.0" length from the dropdown menu Pendant measures 18mm (3/4 in) x 31mm (1 1/4 in) Chain is 1.30mm thick and 20 inches long Weighs 7.26g