Roberto Coin Pink Opal and Diamond Pendant Necklace — Gold

Roberto Coin crafts this reversible medallion necklace in 18kt yellow gold with a polished finish. The circular pendant features a pink opal and mother-of-pearl inlay framed by a twisted-rope border and accented with round-cut diamonds set in claw settings. A rolo chain with lobster claw fastening completes the piece, which is finished with a signature ruby detail. Layer it alone for understated elegance or wear it as part of a mixed-metals stack.