1.31ct Round faceted Sapphire 7mm Renata Essence 250ml Material: metal and plastic

Material: metal and plastic

Color: Grey + Blue

PWM Frequency: 12khz

Weight 375g

7 (G) Robur Die

1.31ct Round faceted Sapphire 7mm Renata Essence 250ml Material: metal and plasticSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur in orange, yellow, green, brown, purple, pink, black and colourless. Red and reddish pink coloured corundum is referred to as ruby. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the