Diamond Acid Bath Explained | CAUTION: Use Great Care

USE EXTREME CAUTION IN EMPLOYING THE FOLLOWING PROCEDURE! The following protective gear is highly recommended. These should be resistant to nitric and sulfuric acids: rubber coated splash apron, gloves, safety glasses and an acid storage cabinet.

The ideal method for cleaning diamonds uses the acid bath. A mixture of 1 part nitric and 2 parts sulfuric acids in a small beaker over heat will clean the diamonds thoroughly. Even the smallest particles of metal shaving and dirt will be removed in such an acid bath. The color of a diamond can often be dramatically improved, perhaps due to a pitted girdle that has collected grime over years of wear, or a cutter who did not clean the diamond properly after the final polishing process. After a small amount of the solution has been mixed in a small Pyrex beaker — 20 to 50 milliliters (depending on the quantity of diamonds to be boiled) — under an exhaust fan or outdoors, and the diamonds have been dropped in it, place the beaker on your heating device, such as a hot plate. Heat the solution until it boils for about a minute or longer, depending on how soiled the stones are.

During the Covid-19 crisis we are still serving the public with safeguards. At this time our hours are 2PM to 6PM, Monday through Saturday. No Appointment Necessary.

Please free to contact us by calling (408)358-5336, texting to (408)455-9885 or email to Stay safe and wash your hands often!

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