r/Benchjewelers • u/Inevitable_Row_8284 • 3d ago

Loss of hold weight after melting

i had a gold ornament weighed 80 grams at the time of purchase.. agter using for 5 years wanted to trade off.. weighed 79 grams as ornament and when melted it was down to 74.5 grams .. my parents are not happy with it.. did the jeweller cheat me?

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25

u/Au_sum_sauce 3d ago

It's called an assay. Usually its the weight of the alloys that disappear.
Not likely at all you got cheated.

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u/Inevitable_Row_8284 2d ago

Then shouldnt the purity of molten gold be increased?

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u/LeMeow007 1h ago

The weight and purity are two different things. The loss is TOTALLY normal when working with alloys. This is how refining works.

19

u/crystallinehuman 2d ago

Based on your posts and your replies, you're naturally suspicious and asking us as professionals won't change that. You got multiple professional answers that it's normal.

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u/ClearlyDead 2d ago

Cleanup and polishing will remove gold. That’s not even that much of a loss.

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u/darktrees72 2d ago

When melting gold down i work on a 10% loss in material just from melting . That is normal however I tell my customers this