To ensure that our diamonds are safe, we utilize an in-house Geiger counter. If you’re in the jewelry trade, you should always have your own Geiger counter on hand to check the safety not only of colored diamonds, but other gems.

The importance of this was illustrated in 1998 when hundreds of dangerously radioactive cat's-eye chryso-beryls circulated through Asian markets - with few of them even finding their way to the US. The levels of radioactivity in these cat’s-eye were more than 50 times the limit deemed acceptable in the US. The gems were allegedly treated at a nuclear facility in Indonesia and released before the radioactivity could have dissipated.

The only way to ensure that such radioactive gemstones do not contaminate your inventory, tarnish your image and endanger anyone’s life is by always buying from established and reliable suppliers who test their gems regularly, while always double-checking the safety of your stones by testing them yourself.

Lotus Colors assures our customers that all our diamonds are safely enhanced, and they contain no residual levels of radiation. We adhere to the US standard (level measured at 1.0 nCi/g), which is the strictest in the world. We follow a strict policy of distributing only the diamonds we irradiate in the U.S. We never buy any irradiated color enhanced diamonds from any outside source.

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There are a number of Geiger counters available specifically for gemstone testing. Many of these can be found on http://www.geigercounters.com

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