Czech Republic Turquoise Bridal Fashion Ring Earring Necklace Bracelet Gold Jewellery 84

Czech Republic Turquoise Bridal Fashion Ring Earring Necklace Bracelet Gold Jewellery. 

By Aamir Mannan.

American Robin nest and eggs

Slab of turquoise in matrix showing a large variety of different colouration

Hardness and richness of colour are two of the major factors in determining the value of turquoise; while colour is a matter of individual taste, generally speaking, the most desirable is a strong sky to "robin's egg" blue (in reference to the eggs of the American Robin).[8] Whatever the colour, turquoise should not be excessively soft or chalky; even if treated, such lesser material (to which most turquoise belongs) is liable to fade or discolour over time and will not hold up to normal use in jewellery.