Black Stone with Wooden stand

₱350.00 ₱350.00
In stock
SKU: JQBPU

Black stone Jewellers use a dark test stone to test gold carat . The object to be tested is scratched on the surface of the stone and a test acid solution determines the carat of the scratch. Can also be used with test needles to confirm carat markings.,

Black Stone with Wooden stand

₱350.00 ₱350.00
In stock

Black stone 

Jewellers use a dark test stone to test gold carat . The object to be tested is scratched on the surface of the stone and a test acid solution determines the carat of the scratch. Can also be used with test needles to confirm carat markings.