4.57ct Blue-Green Colour Octagon Cut Sapphire Certified Unheated 9.9x7.8mm Bergeon Rubisol 5 litres

4.57ct Blue-Green Colour Octagon Cut Sapphire Certified Unheated 9.9x7.8mm Bergeon Rubisol 5 litresThis unheated sapphire is accompanied by a certificate from GIA. 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

Drop voltage of DC Current Measuring: 200mV for full scale approx

spring bar remover & bracelet holding block all in one

8" x 2" Aurelia (Calico) 112 fold

Package Weight: 1175g / 41

Humidity (20-80%)

Select the closest size to your design and sculpture with minimum waste

Contact Rotation Speed 0

Continuity Buzzer: Yes

Black background

00ct - Ø8

6" x 2" Riva (Calico) 140 fold

"This Item is discontinued" Alternative:  GemOro AuRACLE PRO Digital Gold & Platinum Tester