Long Sphere Pendant Necklace Shop All Accessorize UK Spire Necklace Silver Temple of the Sun US Serpent Spire Dragon Stone Necklace Natural Crystal Gemstone Necklaces Spire Pendant Necklace Spiral Pendant Necklace. A vessel of ancient secrets, the Spire Necklace features a single sculptural shell pendant in polished 18k gold vermeil, suspended from a curb chain. With its spiralling contours inspired by the sea, this pendant necklace carries a refined sense of movement and transformation. Chain Length: 40cm Ext Length: 9cm Pendant: 30. 3mm x 9. 8mm Finish: Polished