3.40ct Cushion Cut Pinkish Purple Spinel 11x8mm Clock Pendulum Electronic Sensor for Elma & Witschi Good quality and high precision

Good quality and high precision

Resolution: 1mV

Measuring AC Voltage Range: 200V / 600V

Mounted on Wood

In wooden Box

3.40ct Cushion Cut Pinkish Purple Spinel 11x8mm Clock Pendulum Electronic Sensor for Elma & Witschi Good quality and high precisionSpinel 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. Spinel used to be offered as a ruby alternative but nowadays it is praised for its own special characteristics. Some spinels display phenomena such as colour change and asterism. Usually, spinels look clean to the naked eye.; Stone Size (mm): 10. 99x. 8. 13mm; Carat