I have tested them on my equipment.They show as real Sapphire.I bought them in India,at a market,kind of like a flea market for gemstones.As you probably know the markup on gems,is high in the U.S. Since after 45 years in the business,I decide to give away some of my collection of GEMS.Thank You for looking and/or bidding.Moving to the Philippines in Feb.So have a lot to sell.Here and there and every where.lol