Hand-wrapped in sterling wire (argentium to retard tarnish), I call this piece "the Blue Morpho" after the South American butterfly, due to its intense blue flash. This stone is one of many magnificent items purchased from fellow Etsian Douglas Manning at SilverFound ( http://www.etsy.com/shop/SilverFound?ref=pr_shop_more ). This enormous stone measures approx. 51x37mm and the entire piece from bail to bottom is 2 3/4". Finished on both sides to offer the wearer a choice of "amazing" or "stunning", and pictured with 18" silver-plated rope chain that is included. Photographed in available light and flash, but the pictures cannot do the stone justice.