Mid blue stone, very good condition with unaided eye, some wear on the crown seen using loupe.
Topaz has a hardness of 8, fair to poor toughness and good stability, making it suitable for use in rings, pendants, earrings, bracelets, brooches and cufflinks, but care should be taken in rings and bracelets and when setting the stones themselves.
Hardness – resistance to scratching and wear
Stability – resistance to alteration by light, heat or chemicals
Toughness – resistance to fracture, cleavage or cracking
Please note you will receive the stone in the photograph