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Blue Topaz Cut Stone, Oval, Dark, 7 x 9 mm
- 8110359
- Out of stock - Pre-order Pre-Order
- £20.00 exc.VAT
Blue topaz has a stunning range of colours, great lustre and good durability. It comes in 3 shades of blue from Sky Blue (the lightest) to Swiss Blue (mid-blue) and London Blue (Deep Blue).
Hardness (vs abrasion/scratching) 8/10
Toughness (resistance to fracture) fair to poor (it has moderate to easy cleavage in one direction)
Stability (resistance to chemicals, UV etc.) good
