BAYANA Sebastian Necklace Waterproof, Tarnish Free & Gentle on Your Skin. Introducing the Sebastian Necklace from BAYANA Jewellery — a playful yet refined gold crab necklace inspired by ocean life and coastal adventures. Featuring a delicately detailed 18k gold crab charm and a sparkling zircon stone, this piece embodies seaside charm with a touch of elegance. Material: 18K Gold Stainless Steel Charm Size: 1.8 cm x 1.4 cm (crab charm) & 6 mm (zircon charm) Chain Length: 45 cm + 5 cm extender Features: Waterproof, tarnish-free, and gentle on sensitive skin The Sebastian Necklace celebrates BAYANA’s coastal-luxury spirit — an Australian jewellery brand inspired by ocean treasures and golden horizons. A charming addition to your collection, perfect for layering or wearing as a statement of seaside elegance.