Source: Brazil, Russia, Pakistan and Sri Lanka
Mineral: Topaz
Hardness: 8
Colour: Yellow, orange, brown, pink to red, purple, blue, green and colourless.
Clarity: Blue topaz has the least inclusions but some of the more rare colours like orange and pink may show inclusions.
Treatments: Most of the colour change is due to irradiation and heat.
Care and cleaning: Avoid steam or ultrasonic for cleaning and just use warm soapy water.
Birthstone: November
Stone Properties: Wisdom, beauty and longevity