This is a Natural Green Prehnite weighing 60.00 carats (27.0 mm x 20.50 mm x 13.2 mm.) It is oval shape and would make a great pendant, or even a big ring. This was part of my personal collection which I never had mounted. I hope the winning bidder enjoys it as much as I did. The Green Prehnite - Oval cabochon Cut Styling Prehnite stone is simply breathtaking ! Prehnite Stones and amazing Beauty that the pictures do not show , - you are going to Love this Prehnite. Retail Value: 550$