4.47ct Colour Change Cushion Cut Sapphire Certified Unheated 10.4x8.2mm Valjoux 7750 Series ETA Swiss

4.47ct Colour Change Cushion Cut Sapphire Certified Unheated 10.4x8.2mm Valjoux 7750 Series ETA SwissThis unheated sapphire is accompanied by a certificate from AGTA. Sapphire 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

Cast Steel

014 - Swiss Made

Hagerty Ultrasonic Jewel Clean - For ultrasonic cleaning of gold

50mm (Blue) A*F Swiss

Easy to read size chart on mandrel for full and half sizes

automatic calculation of electricity

Sizes (Diameter):Ø17/15

Medium (Green) Oiler

Ø5 to Ø20mm with 32 Degree Punch

Head Length: 15mm / 13mm

5 * Mini USB Nano V3

2 chucks for cases with slots