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Diamond Estimator Gauge
Ruby’s hues vary from orangey-red to purplish-red and the presence of chromium is the trace element that causes the unparalleled ruby red colour
50 * M3*6mm Screws
Package size: 16 * 11 * 5cm / 6
3.70ct Round Spinel 8.7mm Bezel Remover for Rolex Diamond Estimator GaugeSpinel used to be offered as a ruby alternative but nowadays it is praised for its own special characteristics. Spinel can be red, pink, orange, purple, violet or blue. Red and pink are caused by traces of chromium, orange and purple by chromium and iron and dark blues by traces of iron and cobalt. Transparency: transparent to opaque Mohs scale: 8 Sources: Sri Lanka, Afghanistan, Myanmar, Tanzania and Madagascar.; Stone Size: 8. 7; Carat Weight (ct):