goldenchild
Well-known member
- Joined
- Aug 14, 2009
- Messages
- 1,810
philddreamer said:When I buy GF, I always use the formula:
1/20th x .375k x grams = grams of 24k.
In this case, .05 x .375k x 510g = 9.56g 24k
So, 9.56 24k x 54.63/24k spot = $522.33, if my math is right.
I bought some GF today & that's how I calculated.
Someone correct me if I'm wrong, please.
Thanks,
Phil
This formula is good for other jewelry like pins, cufflinks, rings and so on. But like Oz has mentioned watchbands are a special case in that only the caps are gold filled. Here is the forumla I use and am spot on in the high 90 percentile.
After doing probably hundreds of pound of GF watchbands I have come to the conclusion that the watch caps make up about 30% of the bands total weight (bot mens and womens). And the most common by far is 1/20 10k. So...
510 x .3 = 153g (caps)
153 x .05 = 7.65g (10k karated gold)
7.65 * .417 = 3.19g (pure gold)
3.19 * 54 = $172.26
So the pure gold in this lot would be worth about $172.26 keeping in mind that this is if the bands were in PERFECT condition. I suspect that this is why the bands go for so much on ebay. Calculations are being made including the stainless steel weight on the bands.