Stone in gold ring

[tractorman]

How do you deal with the weight of a stone in a gold ring when determining amount of gold? I'm not talking about diamonds, I'm talking about the big blue whatever-it-is they put in my old HS class ring. It is 10k and I can weight it, but how do you account for the weight of the stone?

[franklin]

How do you deal with the weight of a stone in a gold ring?

Probably a propane torch should do it.

[tractorman]

Haha! Thanks! I'm not thinking about destroying my class ring, I just want to estimate the amount of gold it contains!

[Rodebaugh]

post a pic of the piece beside a coin (for size eval of stone).

That will get you a few good answers

[tractorman]

I don't have it here. Its something I put in Dad's safe years ago because I didn't wear it much. Next time I'm there I'll grab it.

[tractorman]

Its built alot like this one.

http://www.ebay.com/itm/1990-Syracuse-University-10K-Mans-Class-Ring-/310238713699?pt=LH_DefaultDomain_0&hash=item483bab1763

[PennyBoy]

I think the best way, without destroying the ring, is to take an educated guess. Unless you can find out through the vendor that sold you the ring.

[tn-dave]

Stones are measured by MM size (you can probably get close converting from inches) -- And you should be able to find a chart somewhere on the web to take the shape and MM size to guesstimate the carat weight. It's probably onyx or quartz

5.0ctw = 1 gram

[mflugher]

mens class ring stones weigh between 0.25 and 0.5 dwt on average. we have a handful of popped stones in the office which we use for estimation when a ring with a stone comes in. as far as getting the stone out... easiest way i've found is to put ring on mandrel and attack stone with hammer . its quite theraputic after you find out you bought some GP crap by accident the other day.