The cost price for fine silver from the CPM price list is
R12.50 without an alloy. Once you add an alloy from fine silver it is now
called sterling silver, “is
an alloy composed by weight of 92.5% silver and 7.5 other metal usually copper”
(“What is sterling silver - Google Search” n.d.) . From a jewellery point of
view, if you have 20 grams of fine silver, you then need to alloy for the metal
to be hardened. This is a formular to calculate an alloy (rate of silver x
weight of silver x purity of silver). In this case R12.50 x 20 grams x 1000
divided by 925 = R270.27.
Monday, October 30, 2023
silver granules
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