This is a huge natural star sapphire weighing 37.88 carats. It is an Oval with a lovely bluish gray color and a very crisp star. This is a rare piece to find, and is a collectors item. If made into jewelry it would be a masterpiece. This is not for the average joe.This piece is for the connoisseur of fine gemstones. The item "Natural 37.88 Carat Star Sapphire 21x18.5mm Oval Genuine Loose Gemstone Ceylon" is in sale since Thursday, July 12, 2018. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Sapphire\Natural Sapphires". The seller is "ceylontradingcompany" and is located in Norwich, Connecticut. This item can be shipped worldwide.