IGTL#25/2 b.t street Anchepet Avenue road cross Bangalore - 5600537090613889info@igtl.co.in www.igtl.co.in IGTL testing services are:Diamond Gemstone testing.Ruby Gemstone testingEmrald Gemstone testingYellow Shapphire Gemstone testingBlue Sapphire Gemstone testingCoral Gemstone testingPearls Gemstone testingGomed Gemstone testingCatseye Gemstone testing