Dichroscope and "Chelsea Filter", folding More sophisticated diamond gauges Backlist display

Backlist display

Unlike a magnifying lens you don't look through it

shorter working distances)

DETAIL / MAGNIFICATION

carats or grains)

Dichroscope and "Chelsea Filter", folding More sophisticated diamond gauges Backlist displaySummary Two testers in one. The dichroscope is the same as ref. dichroscope, folding. Instructions are not included with this item. The Chelsea Filer is the same as ref. chfilt (except that our ref. chfilt is the original English filter, as designed at the Chelsea College of Science and Technology in 1934; this version was designed in China more recently). Instructions not included with this item. Is it easy to use? Yes. Limitations & Disclaimer All