Specific Gravity (density) Kit by Quicktest, incl. scales One-Offs & Clearance - Precious Metal Testers 10X12 - 10X13 - 10X14

10X12 - 10X13 - 10X14 - 10X20* - 10X21 - 10X21 - 10X23 - "30X21”

large (120mm diameter) lens

everything you might use a jeweller's loupe for (but 100X the optical quality

There's also an up-market version which includes several different cuts (shapes)

as an electronic tester:- instant reading and no waiting time between tests

Specific Gravity (density) Kit by Quicktest, incl. scales One-Offs & Clearance - Precious Metal Testers 10X12 - 10X13 - 10X14Summary Weigh the item on the weighing machine (included). Then weigh it again, but this time suspended in water. Now find a calculator and do a simple calculation. Note, you can test precious metals, you can test gemstones, but you cannot test both at the same time (i. e. jewellery set with stones). Pros and cons Cons: you must work slowly and carefully; you must write down the readings and do some simple arithmetic with a calculator (we do also