. Style: oval. Colour: White / Black. Material: 18ct Gold / Onyx / Diamond. Condition: refurbished. Size: 23.00mm x 12.00mm. Brand: . Diamond carat range: 0.25ct - 0.49ct. Gender: Male. Age group: Adult. Department: cufflinks. William May has been involved in the British jewellery industry since 1825 and we\\\'re extremely proud of our rich near-200 year heritage. As an independently-owned company, we supply a vast array of exquisite new, pre-owned & vintage jewellery that you simply won\\\'t find in a high street store. Pre-Owned 18ct White Gold Onyx & Diamond Set Oval Cufflinks - Male - 18ct Gold / Onyx / Diamond - White / Black - Size: 23.00mm x 12.00mm