Originally Posted by
Goldsmith
Hi Alex,
Here are some facts, 18ct. gold is an alloy of 75% of 24ct.(fine gold) mixed with 25% of other pure metals. Depending on the colour you want. A standard 18ct yellow gold would be 75% of pure gold (24ct.) alloyed to 15% fine copper and 10% fine silver. If you want a red gold just increase the fine copper percentage. If you want a pale gold, sometimes referred to as Green gold, then you can just add 25% fine silver to the 24K, I use this alloy for making small carved leaves on antique restoration jobs.
To be simpler, if you have been given 10 grams of 24ct., then you will need to melt it in a crucible with 1.5 grams of fine copper and 1 gram of fine silver. which will give you approximately 12.5 grams of 18ct. yellow gold.
I hope this all makes sense.
James
Bookmarks