COLLECTION OF DIAMOND AND GEMSTONE RINGS Consisting of a ring containing three round brilliant cut diamonds weighing approximately 0.20 carat total and four rectangular step cut sapphires, a ring containing three round brilliant cut diamonds weighing approximately 0.20 carat total and four rectangular step cut emeralds, together with a ring containing three round brilliant cut diamonds weighing approximately 0.20 carat total and four rectangular step cut rubies. Sapphire ring stamp: 18. Emerald ring stamp: ASSIL 750. Ruby ring stamp: A.G.C. 18K. 5.50 dwt.