1/4/2023 0 Comments Topaz clarity serial![]() ![]() Topaz is a natural gemstone, and it has inclusions, but they are visible only under magnification. Most gems available on the market are eye clean, meaning they do not have visible impurities and flaws. Topaz is one of the rare gemstones that have a high level of clarity. For example, the London blue topaz may be described as a very dark blue topaz. Finally, tone defines how light or dark the colour is. Saturation describes the intensity of the colour. There can also be a secondary hue such as gold, orange, green, violet, etc., meaning a topaz can be described as greenish-yellow, for example. The hue is the main colour of the stone, and it can be red, yellow, blue, etc. ![]() The colour evaluation of topaz has three main components: hue, saturation and tone. Other less known topaz colours are honeyed brown “Sherry topaz”, colourless “silver topaz” and “white topaz”, as well as gems with artificially produced rainbow effects known as “azotic topaz” and “mystic topaz”. The most sought-after blue shades are lightly coloured “Swiss blue” and darker “London blue”. However, blue topaz is extremely rare in nature, and nearly all blue topaz available on the market is the result of heat treatment and irradiation. ![]() The most popular colour of topaz is blue, including any shade from pale blue to deep blue. The rarest and the most expensive topaz colour ranges from golden yellow to pink-orange, known as imperial topaz or precious topaz. Topaz comes in a wide range of colours from colourless and pale yellow to pink, orange, red, brown, violet, blue and green. Topaz Colours and Types Sky blue topaz image – Aksidesign / Canva, Swiss blue topaz image – lermannika / Canva, London blue topaz image – Tungus-ka / Canva, violet topaz image – SenderDiana / Canva, mystic topaz image – Science Photo Library / Canva, pink imperial topaz image – boardbigbear / Canva, greenish-yellow topaz image – boardbigbear / Canva, golden-yellow imperial topaz image – SunChan / Canva, azotic topaz image – lermannika / Canva. Today gem-quality topaz can be found all over the world, the most notable sources being south and south-east Asia, central Europe, north and central America, southern Africa, Australia and Brazil. ![]() However, by the 18th century, scientists had been able to identify topaz properties and sort them out from other yellow gemstones. In olden times, all yellowish gems were referred to as topaz no matter what mineral they had been. It is really hard to trace the history of this gemstone because there was confusion over its identity. These rocks usually have cavities and cracks where get minerals such as fluorite and cassiterite. When molten lava or magma cools, it becomes igneous rock, which evolves into granite, pegmatite, basalt or other rock types. Topaz was formed millions of years under the earth’s crust. The name topaz either comes from the Greek island of Topázos in the Red Sea where it was mined or the Sanskrit word “tapas”, meaning heat or fire. Let’s discover a gem that can be an affordable addition to your jewellery collection, suitable for daily wear. It is a beautiful semi-precious gemstone that comes in various colours and endless shades. Topaz, the traditional birthstone of November, has been associated with opulence and abundance for centuries. ![]()
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