Description

Art Deco era Black Onyx & Diamond Checkerboard Ring by J.E. Caldwell & Co., composed of platinum. With rectangular-shaped black onyx set within diamond-set platinum lines that crisscross. Set with 26 Old Single Cut diamonds weighing approximately 0.31 carats in total. With diamond accents on the shoulders, fine milgrain, and engraved details throughout the entirety of the setting and basket. Setting measures approximately 11.45 wide by 12.77 mm tall. American origin (Philadelphia). Circa 1925.