Bidspirit auction | Platinum Ruby and Diamond Halo

Platinum Ruby and Diamond Halo Pendant Necklace - A gemstone pendant necklace featuring a central oval-faceted red ruby and a surround of colorless diamonds. The pendant is crafted in 900 platinum and holds a primary ruby weighing approximately 0.59 carats, secured in a four-prong setting. A halo of ten round brilliant-cut diamonds surrounds the center stone, and an additional four small round diamonds are set into the graduated bail. The reverse of the pendant mounting is stamped with the characters Pt900, 0.59, and D 0.20, signifying the metal purity, the ruby carat weight, and the total diamond carat weight respectively. The pendant is suspended from a twisted rope chain composed of 850 platinum. The chain end tag is stamped Pt850 and features official Japanese hallmarks including a flag symbol containing the number 850 and a square box containing the letters Pt. The necklace is secured by a spring ring clasp.