If I might add my experience here, I did a cast of three rings on
Friday, using about 75% recycled gold, and the results turned out
nicely…the one thing I always use with gold is ReCastIt, an alloy
replenisher. It is kinda pricey (about $40 worth casts 800 dwt of
14K), but you only use 5% by weight of the old gold. It does bring
down the karatage of the the gold a bit, so if you wanna stay exactly
on 14K, you might wanna add some 24K to the mix.
I had a job a couple of months ago and had to melt down a grieving
husband’s wife’s rings for a “memorial” ring for him, and because of
the publicity in this small town regarding her death, precision and
perfect casting was paramount here. (And because I value integrity,
I wasn’t about to “swap” the old gold for new gold just to achieve
that perfect ring!). I used the Re CastIt, explained to the customer
that the new ring was approx. 13.3 karat, and had super results that
have been shown all around town.
If you use old gold, make 100% sure you get all the solder cut out
before you cast, and don’t use chains…they have solder everywhere.
And clean it perfectly before the melt, the less uncertainties you
have to deal with, like solder, dirt, unknown alloys, the better the