FINAL SALE. Note that this is a sample sale product and might come with minor scratches, dents or surface imperfections. Discount codes can’t be used for sample sale pieces. Air bubbles on surface. A large hallmarked solid sterling silver BOOM! necklace. The large BOOM is 48.50mm long and sits centred on a 16" sterling silver belcher chain making the necklace approximately 18"/45cm long. Designed for impact! From the Pop Art collection. Unisex.  Jewellery Care Gold plating silver offers a beautiful yellow gold finish that can be prolonged with the right care. Visit our jewellery care guide to learn some easy ways to maintain your gold vermeil jewellery.