Sapphire

Description

The name refers to the variety of yellow color corundum (aluminum oxide, which crystallizes in the trigonal system)

General physical properties: Hardness 9 - Density 4.00 g/cm³ - Refractive indexes approximately 1,760 and 1,769

- Weight: 2.91 Kt

- Size 9.25 x 8.20 x 4.25 mm

- Cutting: mixed heart shape

- Colour: very bright deep yellow

- Purity: Pure

- Treatments: none

- Origin: Sri Lanka