Set of 11 diamond colour-grading stones by Gemoro Resolution_0.01g that one was a forgery

that one was a forgery

though British bank notes don't have these

Point it at the sky and see the lines that correspond to hydrogen burning in the sun and oxygen being absorbed by the atmosphere

all you need to know is: it's not diamond

Set of 11 diamond colour-grading stones by Gemoro Resolution_0.01g that one was a forgeryDetails The only way to colour grade diamonds is to match the colours against carefully graded samples. Here are 11 carefully colour graded stones, 1. 00ct each, colours D to N. This set is unique in that it has 11 stones, and also because it has a built in UV light (with a USB rechargeable battery). Please note, these are colour grading stones for diamonds, they are not diamonds (they are Cz).