Mid Century 0.63 Carat Transitional Cut Diamond Engagement Ring, circa 1950A truly lovely vintage diamond engagement ring. The transitional cut diamond graded by De Beers as G colour, SI2 clarity is impressively white, bright and lively. The stone is secured by six split claws in a platinum collet. Slim, spear shaped shoulders are set with six (three each side) eight cut diamonds, leading to a slender platinum shank. Although De Beers have described the cut as Round Brilliant, the diamond has many characteristics of an Old