yellow gold Clash de Cartier onyx ring from Cartier Pre-Owned featuring yellow gold, onyx stone, gold-tone stud detailing and polished finish. Conscious: Purchasing this item continues its narrative and reduces the environmental impact of using new resources. You can be confident that you’re making a better choice for the Planet.. This item comes with a Collector Square certificate of authenticity.. Condition: GOOD. This previously owned and used item is in good condition with minimal signs of use. This may include fading of material or plating and scratches..