18kt yellow gold Ensemble de River diamond ring from SOPHIE BILLE BRAHE featuring 18kt yellow gold, polished finish, articulated links, claw/prong setting, brilliant cut diamonds and VVS1 diamonds colour and clarity. All products are handcrafted.. This piece comes with a certificate of authenticity.. Normal everyday use and external agents may reduce the lustre of gemstones and gold surfaces. To maintain, use specific, non-abrasive products specially meant for cleaning jewellery..