Round Section, Interlaced Round Knot: Iona MarbleHold a stone of Iona in your hand and you hold the history of the world. The whole fabric of the island is created from some of the oldest stone we know and this bangle has a lovely oval cut and polished piece of Iona marble, set in silver and accompanied by our interlaced round knot charm, symbolising Eternity. We use 100% recycled silver in our jewellery collections which emits 2 3 less CO2 than mined silver. Gauge: 3. 5 mm Materials: 100% 925