Gemorium India Pvt. Ltd offers Dark Blue Coloured Sapphire Stone. Gemorium India Pvt. Ltd also offers various types of precious and semi-precious stones. The Dark Blue Coloured Sapphire Gemstone is used for designing jewellery. The Dark Blue Coloured Sapphire Stone was used for decorating the crowns in ancient times. This stone is considered to be the symbol of power, obedience, fidelity and chastity. This stone is also believed to be capable of alleviating pain, averting conflicts, and giving eternal life to its owners. This stone has hardness of 9. This stone has specific gravity ranging from 3.95 to 4.10. This stone has refractive index ranging from 1.762 to 1.770. This stone has aluminum oxide and has a hexagonal structure.
