2.86ct Cushion Cut Fire Opal 11.7x8.3mm Seiko Beep Alarm 6.2mm (NEF) Shaft Movement Color：Orange + Black

Color：Orange + Black

Accuracy: ±3°C(-50~0°C)

0 megapixels

202mm(40pcs)

5 Half Round Grooves

2.86ct Cushion Cut Fire Opal 11.7x8.3mm Seiko Beep Alarm 6.2mm (NEF) Shaft Movement Color：Orange + BlackFire Opal is an unusual variety of opal gemstone from Mexico, with colours ranging from yellow to orange and orange red. Depending on the origin of the stone it might be very fragile which makes it more suitable for jewellery such as necklaces, brooches and earrings that are less likely to be knocked. Opal is the birthstone for October. Mohs Scale of Hardness: 5. 5 6. 5 Sources: The most famous source of fire opals is the state of Quertaro in Mexico.;