Friday, February 6, 2015

Yemen Sapphire Diamond Fashion Gold Jewellery 10030

Yemen Sapphire Diamond Fashion Gold Jewellery. 
By Aamir Mannan.
Blue sapphire

Pear-shaped blue sapphire
Color in gemstones breaks down into three components: hue, saturation, and tone. Hue is most commonly understood as the "color" of the gemstone. Saturation refers to the vividness or brightness of the hue, and tone is the lightness to darkness of the hue. Blue sapphire exists in various mixtures of its primary (blue) and secondary hues, various tonal levels (shades) and at various levels of saturation (vividness).






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