Jewelry, Gems, & Minerals/pendant


I found a pendant it is marked CZC 925 and ION HY. appears to be silver but not sure if the stones are diamonds,they are chanelled. The stone appears to be 3 carat and has small stones around it and the clasp has small stones,very pretty piece. Wonnder if its woth anything?

While this question is best forwarded to a jeweler, I can give an educated guess as a mineralogist. The 925 maybe indeed silver, indicating that the piece is 92.5% silver and 7.5% other metal alloys, usually copper.
A quick and easy silver test can be performed by putting part of the metal of your jewelry into an egg-yolk (No kidding). Touch a part of your jewelry piece to the egg-yolk that can be polished later. True silver will be stained black by the sulfur present in the egg-yolk, leaving a thin coating of black silver sulfide on your silver jewelry. This stain can be removed with silver polish and some "elbow grease".
I think the CZC stands for cubic zirconia. It would be unusual to place real diamonds into "cheaper" metals, such as silver.
As far as the ION HY markings are concerned, I have no idea. Could be a merchant or factory code.
Hope this helps a little.  

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Uwe Richard Kackstaetter, Ph.D. (Dr.K)


I can answer questions concerning minerals, mineralogy, gems, metals, and anything that has to do with geology. However, I am NOT a jeweler. Questions about values, settings, gem stone cuts and appraisals are best directed to other experts on this site. I can however aide in the identification of unknown mineral materials. As a public service and part as training for new geoscientists, our university department provides FREE mineral identification for individuals. Please contact me for details or go to for details..


I am a professor of applied geology and mineralogy with many hours of field experience. Furthermore, I enjoy recreational gold prospecting and mineral collecting. As a professor I am engaged in research concerning minerals and their occurrence.

Member of the GPAA (Gold Prospectors Association of America) as well as the Association of Environmental Geochemists. Member of the GSA (Geologic Society of America) Member of the AIPG (American Institute of Professional Geologists)

Here is a small sampling: Mineral-rock handbook: Rapid-easy mineral-rock determination : written for anyone interested in minerals and rocks - Proctor, Peterson, and Kackstaetter;Macmillan Pub. Co. (New York and Toronto and New York) Physical Geology Laboratory e-Manual [CD-ROM], Kackstaetter, Earth Science Education LLC Colorado Front Range Self-guided Geology Field Trips, Kackstaetter,

Ph.D. in Applied Geology and Mineralogy. I am actively teaching courses in mineralogy and a variety of field courses with mineral collecting opportunities. Background in precious metal exploration.

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