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Diamond Terms U

~ Diamond Terminology from A to Z ~

There are thousands of terms being used in today's jewelry industry. Some common knowledge, others are obscure and baffling. We've created a database of terminology from A to Z to make it easy, and of course if you still have questions, please do not hesitate to send us an email or give us a call.


Ultrasonic Cleaner, Ultra Sonic Cleaner

This is a great invention for cleaning jewelry. Ultrasonic cleans by using sound frequencies. It's powerful enough to remove heavy oils, all proteins, dried wax, and so precise it can clean circuit boards, but also delicate enough to clean the precision assemblies such as diamond engagement rings, or any other gem ring. It works like this...

Ultrasonic sound waves are sounds that take place above and beyond what we as humans can hear, ranging from 20,000 cycles/sec to 100,000 cycles/sec. alone that really can't do anything as far as cleaning. You need fluid. Once you put the fluid in and start the machine the ultrasonic waves starts to make the fluid bubble. Once these bubbles start they become bigger because sound is actually being put in the bubbles, and when just one bubble collapses it creates about 20,000 pounds of pressure per square inch. That's a lot of pressure.

The Ultrasonic cleaner literally creates millions of these bubbles inside the machine and at the right time it explodes them, combine that with 20K pounds of pressure of liquid and you can see how it can clean and get into every nook and cranny there is.

Something else to think about. With so many bubbles being created and all the pressure being shot around, the Ultrasonic cleaner can literally get to about 2000 degree Fahrenheit. Just remember don't just go buy one of these and put regular old tap water in it. You need a cleaning solution that can actually fill up like a water balloon in terms of bubble making, so when the bubble goes "POP" you can get the biggest bang for your buck.


Universal Gemological Services was created so companies could get independent appraisals done for their diamond rings, loose diamonds, gems, and any other gemstone based product on a fast, reliable basis. Take that appraisal with a grain of salt. Often times appraisals are exaggerated upwards to what the actual worth is. Sometimes two to three times what the object is worth. We recommend talking to your insurance company and ask them what appraisal service they recommend, so you know they will honor the price given.

Ultraviolet Light

The only way to detect the Fluorescence of a diamond is through the use of ultraviolet light. Once exposed you'll see immediately if the diamond glows. If it does it will usually "glow" Yellow, or in some cases a Strong Blue color. The blue color can be bad and well as good. In almost all cases if you see a yellow fluorescence that perfectly fine. However if it's blue, that could be why your diamond appears milky white even in the daylight. The reverse of that, is sometimes it's the Blue fluorescence that will actually enhance the brightness of your diamond. On most reports you will find whether or not the diamond has a fluorescence to it.

I know the above description is a little confusing. Your best bet is to look at the diamond in person under ultraviolet light and see for yourself whether or not the fluorescence is desirable or not to your eyes.