9 Carat White Gold London Blue Topaz Round Bezel Set Pendant

This lovely soliatire pendant, made in 9 carat white gold, is bezel set with a round London blue topaz and comes on an 18 inch long curb chain.
 
Specifications
Pendant dimensions (including fixed bail and bezel setting) - 10.8x5.6mm
Topaz weight - Approximately 0.58ct 
 
Topaz
Blue is usually the first colour that springs to mind when we think of topaz, from pale sky blues too vivid deep London blues but topaz in fact comes in a wide range of colours. 
Most natural topaz is colourless but other natural hues include light blue, green, yellow, orange, red, pink and purple. Usually we identify different colour topaz’s simply by their hue but there are a few exceptions. These exceptions are ‘imperial topaz’ which is a medium reddish orange to orange red variety and is one of the most expensive varieties of topaz. 
The other is ‘sherry topaz’ which is the yellowish brown or brownish yellow to orange variety of topaz, it is also sometimes referred to as precious topaz. 
Although topaz can occur in a blue hue naturally, it is extremely rare! Because of this the majority of blue topaz on the market today is colourless topaz that has been colour treated by irradiation and annealing (heating). The amount of irradiation and the temperature the gem is exposed to will determine how dark and saturated the final blue colour will be, which is why we get different varieties of blue topaz. 
Other colours of topaz can also be heat treated to improve their colour. 
 
Care and Cleaning 
Topaz is a relatively durable gemstone, with an 8 on the Moh’s scale it resists scratches quite well but it may still be scratched by harder gemstones and other objects so care sure always be taken when wearing, storing, taking off or putting on your jewellery. Topaz has poor toughness so avoid sudden and hard knocks as these may cause the stone to cleave. 
 
To prolong the time of the stones we recommend putting your jewellery on after any makeup, perfume or lotions. 
 
Topaz doesn’t react well to high temperatures or sudden temperature changes, for this reason topaz should never be ultrasonic or steam cleaned. Instead, to clean your topaz jewellery at home we recommend a gem and jewellery bath or a soft gem cloth, which can be purchased from us, or warm soapy water and a soft brush. 
Almost all blue topaz on the market has been irradiation and heat treated to produce the colour but this is a stable treatment during normal wear and cannot be changed unless exposed to very high temperatures
 
Education
If you would like to learn more about gemstone treatments, what these treatments are and what they do, as well as which treatments are stable and how to look after gemstones with unstable treatments, please visit our education page.