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How do you know it's a genuine gemstone?




How To Recognise Genuine Gemstones

For many individuals separating the wheat from the chaff when it comes to choosing a gemstone can be rather difficult. At Booth & Booth we hand pick each and every gemstone for our collection so we certainly know a thing or two about what to look for in a stone. In this essential guide we reveal our secrets so you can select a gemstone that is truly one of a kind.

Is the Stone Blemish-Free?

A gemstone that is blemish-free will have a higher clarity and higher value than gemstone jewellery that is tarnished. During our analysis we look closely at both internal and surface characteristics pinpointing any imperfections that may devalue the stone. 

Inclusions however are not just a negative feature on some gemstones, infact certain types are enhanced by these imperfections. For example, the star sapphire is a highly valued stone whose beauty relies on these inclusions. When considering inclusions, we study the stone type and size as well as the number and position of the inclusions. For gems such as aquamarine (pictured above) the internal inclusion - called rain - can be a reassuring sight confirming authenticity.

Is the Cut Symmetrical and Well-Proportioned?

The shape of the finished stone is just one of the factors that determines its value and quality. However, choosing a stone that is well-proportioned with a good surface area is equally as important as its finished cut. Symmetry is particularly significant as poor cuts can distort and devalue the colour and clarity of the overall gemstone. We take into account the depth of a gemstone as this can affect colour density and its setting.

How Vivid and Intense is the Colour of the Stone?

A gemstone that is particularly vivid in colour is highly prized within the trade, and those that are intense with no cloudiness are particularly valuable. The hue of the stone is also a factor when considering value, and cool and warm hues have degrees of value depending on the type of gemstone.

How Transparent is the Stone?

Many may confuse a stone’s clarity with its transparency, however transparency is the amount of light the stone disperses. A stone with high transparency is generally more valuable.

Has the Stone Been Treated?

A stone that has undergone treatment to enhance its colour can go unnoticed to the untrained eye but under closer inspection tell-tale signs of treatment can be seen. Natural stones are more valuable than treated, and stones that have been heat treated, dyed or filled to improve colour, clarity and conceal imperfections are lower quality. Beware superb looking gemstones that are unbelievably inexpensive. There are many dyed quartz gemstones parading as peridots, amethysts, citrines, garnets, aquamarines and topaz. If the price is unbelievable, so is the gemstone!

To discover more about gemstones or to browse our own collection of beautiful gemstone jewellery, visit our online catalogue or contact us directly on 01434 345700 for further information.

Created On  18 Apr 2015 11:28  -  Permalink

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