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Forget the blue reflection, I have not heard that in my 36 years as a jeweler. If you have a loose diamond, you can place it upside down on a thin dark line. A diamond will make the line...

If it is gold it will be marked... somewhere. It may say 10k, 14k, 18k, 416,. 417, 585. . 750. If there is no name on the watch there is probably more than a 99.9% chance it is not gold unless it...

The SD is a makers mark, the circle C means the design is copyrighted. The value would vary depending upon the quality of the diamonds and the weight (size) of the center stone.

More than likely "one twentieth (of) 10K" The term "RGP", meaning "rolled gold plate" is very common, or perhaps the "R" on the end is an "F", which would be "one twentieth (of) 10K gold-filled".

First tip is to be very careful. Tanzanite is extremely fragile, probably more so than emerald. It will chip very easily. It might even be a good idea to get the stone appraised beforehand and...

Yes there is Italian white gold, If it is marked Italy, it will probably be marked with 3 numbers somewhere, usually close to the Italy, 925 is sterling, 585 is 14K, 750 is 18K. It can be...

My cold water spigot for my washing machine is leaking. Looks like the washer needs to be replaced.
I cannot loosen the bolt to separate the assembly. I cannot loosen the screw for the handle...

Please don't shoot the messenger with the bad news, but I am going to guess that you have a lot less gold than you would expect. I will re-check my information but as I remember gold plating...

Thank you!

Generally speaking class rings are 10K, sometimes 14K. They are clearly stamped inside the ring. If it is not stamped chances are about 99.9% it is not gold. To find out what it is worth go to...

First every electroplating machine plates or strips either way, just reverse the contacts. In the 1980's we used to do electro-stripping. The best solution uses sodium cyanide. I am not sure if it...

I have a B & S Intek 206, about 6 years old. Worked great last week. It has always started first or second pull, this week absolutely nothing. Pulled the spark plug to check for a spark. I tried...