Pear Shape Diamond Guard Ring More Pieces Square Brilliant Solitaire with Common Prong Band 1.50 ct. square brilliant diamond solitaire ring,band set common prong style with round brilliant cut… 5.60 ct. Cushion Cut Tanzanite in Palladium with Diamonds 5.60 ct. cushion cut tanzanite, fine blue/purple color. Set in palladium, with a distressed foil finish. Accented with random size round diamonds, and a comfort fit ring shank. Emerald Cut Diamond & Blue Sapphire Platinum Guard Ring An Emerald cut diamond and blue sapphire guard ring. Diamonds are top white color, sapphires are fine bright blue. In platinum, with split channel detail between stones.