How to derive Diamond Wt from studded jewelry when only Net wt available?

Say, i have a Gold Diamond Pendant whose Net weight is 10grams. Now how do I derive the content of Diamond Weight in it?

U.K.Export says:

September 28, 2009 at 8:42 pm

The sizes of tables but even this is how it is not what you want to hear but that is absolutely no way you want to hear but that.
Amanda Rochelle says:

September 30, 2009 at 10:32 pm

The only true way to find out is to pull the diamonds out and have them weighed. But I can tell ya the pendant will never look the same once you have them put back in, so it might not be worth it in the long run.

You can always guess-timate though. Take it into a jeweler and have them measure the stones and give you a guess. You might even want to take it to a few and see what they all say.

Good luck =]