Sort:  

Specific gravity is a good indicator, make sure no bubbles are left on the stone. Visual inspection is acceptable, because bubbles will mess up your calculations.

Do you have any other test equipment?

👍💙🤠💗🤕

just a diamond hardness tester and a jewelers loupe, nothing really fancy since a lot of the real fancy tools are so pricey.

Do you have a scale that measures grams or carats? They are about $25, and good for other things. They can allow you to get to measure specific gravity. The first gem💎💎 microscope I got was a kids unit from a garage sale, and it worked fine.

💗🤠💙👍😆