43 - Very Fine 4.16 Carat Black Opal, 1.08 Carat Round Brilliant Cut and Tapered Baguette Diamond and Platinum Ring. Opal with Very Good Display of Red, Green and Blue Color. Diamonds E-F Color, VS1-VS2 Clarity. Signed P900. Very Good Condition. Ring Size 7-3/4. Approx. Weight: 7.80 Pennyweights. Shipping $26.00 (estimate $2,500-$3,500)