Art Deco Ruby, Diamond and Platinum Clasp, Circa 1930

An Art Deco ruby, diamond and platinum clasp, with an oval faceted Burma ruby in the centre, with a diamond set surround, comprising three, graduating baguette-cut diamonds, in channel settings, above and below the ruby, flanked by a three part design, pave set with eight-cut diamonds, separated by air gaps, with rings for a two row necklace, the back is hand pierced, mounted in platinum, with a figure-of-eight safety clasp and a white gold tongue, circa 1930.