Swiss Blue Topaz 2.75mm Round Cut Natural Gemstone
Our Swiss blue topaz gemstones are almost electric blue in colour and a good cut. We stock three shades of blue topaz. The sky blue are a light blue, the London blue are a dark blue and the Swiss are a bright blue. Only sourced from ethical suppliers. We source and supply our gemstones calibrated by diameter specifically for the jewellery trade.
- Natural Swiss Blue Topaz
- 2.75mm Round Cut
- Bright Blue Colour
- Good Cut
The pictures provided are a representation of cut and swatch of colour. Being natural products each gem can vary in exact shade and height. However if you order more than one we will endeavour to select the closest matching gems in every respect.
We supply an invoice detailing each gemstone purchased. If you or your client require further certification or a more detailed report for an Individual gemstone you will need to have one issued by your choice of reputable and independent laboratory.
Topaz comes in many colours. Most gem quality topaz range from transparent to translucent. Topaz has a brilliant vitreous lustre.
Heat treatment can change topaz colour. Many pink topaz are made by heat treating yellow or brown topaz. Irradiation of colourless topaz can create yellow and brown colours. The colour created by irradiation alone is liable to fade. But if heat treated a stable blue colour can be obtained. Topaz is also coated, often to produce green and optical effects.
Dichroscopes and Chelsea colour filters can be used to help identify topaz.
Topaz is one of the birthstones for November. And the zodiac gemstone for Scorpio. With a hardness of 8 Topaz is a relatively tough gemstone. It is believed that keeping topaz in the home promotes good health for the occupants of the home.
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