Bell & Bird No. 3962Bell & Bird No. 3962 Tab Prong Three Stone Ring A classic three stone diamond ring in our 18k old gold featuring a slim band. The center stone is set with four tab prongs. This example features three old European cut diamonds. The center stone in this example is 1. 93 carat diamond, GIA certified H color, and VS1 clarity. Flanked by 2 old European cut diamond side stones, 0. 85 carats and 0. 76 carats J Color VS1 clarity. Size 6. 5, can be resized.