My name is Elizabeth I have been in the opal business since 1996 Lived in Andamooka opal fields for 18years , lived in Mintabie for 5 years experienced mining with a mining company in Mintabie, I am a manufacturing Jeweller and a Opal cutter by trade , I am very passionate about Jewellery and Opal , I am a member of the Jewellers association of Australia.we use LED lights for taking pictures they are not filtered they are similar lighting used in jewelry stores when clients are purchasing there jewelry, before buying your welcome to choose a different light of your preference for us to take other photos after buying we take it you don’t care . The weight is done on a digital scale we record the digital scales reading . We don’t except changing your mind after we have sent you our goods and warranty only for manufacturing goods, please choose wisely.