Our iconic Simply Silver collection boasts fine, contemporary and meaningful 925 Sterling Silver jewellery. This beautifully designed Simply Silver Sterling Silver 925 Swirl Open Heart Necklace is perfect for any occasion, day or night. Wear solo or stack with your favourite pieces, perfect for gifting yourself or a loved one. Fastening: Lobster Clasp. Extender Length: 2. Width Dimension: 12mm. Drop Dimension: 12mm. 100% Silver (Sterling).