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Gemstone Guide

This guide defines the five essential characteristics of gemstone quality. By understanding these characteristics, you'll be able to shop with confidence. You can make the best choice on a beautiful piece of gemstone jewellery.

 

Colour
The jewellery industry recognises the highest quality gemstones by purity of their hue, the depth of tone, and the colour saturation. The best value is in colours that include "slight" traces of other colours, are not too light or dark, and have a lot of saturated colour. Blue Nile offers some of the highest-quality coloured gemstones available. Nearly all gemstones today, have been treated to enhance their colour. The most common methods of treatment are heating, nearly always seen with aquamarine, citrine, amethyst, sapphire, ruby and tanzanite, bleaching commonly seen with pearls, and irradiation performed on nearly all blue topaz.

Clarity
Almost all gemstones contain inclusions. Even those most highly prized have at least some inclusions. Flawless gemstones are very rare and very expensive. The best value is found in gems that are lightly to moderately included, like those in Chuwawah Jewellery gemstone jewellery. 

Cut
Unlike diamonds, with gemstones there isn't an "ideal" cut geometrically configured for maximum brilliance. But a high-quality gemstone cut is one that presents the most even colour, exposes the fewest inclusions, and displays the majority of the gemstone weight when set in jewellery.

Size
The carat weight of a gemstone is not necessarily an accurate gauge for gemstone size. To help you judge the size of a gemstone, Chuwawah Jewellery lists the diameter of the gemstone when viewed from above - since if the gemstone is set in jewellery; this is the only part of the gemstone that is visible.

 

 

The famous Gemstone