Gemstone color can be described in terms of hue, saturation, and tone. Hue is 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).
Blue sapphires are evaluated based upon the purity of their blue hue. Violet, and green are the most common secondary hues found in blue sapphires.The highest prices are paid for gems that are pure blue and of vivid saturation. Gems that are of lower saturation, or are too dark or too light in tone are of less value. However, color preferences are a personal taste, like a flavor of ice cream.
34.70 CTS NATURAL BLUE SAPPHIRE OVAL CUT GEMSTONE
Gemstone Type : Natural Blue Sapphire (Authentic)
Weight : 34.70 Cts (5 carats = 1 gram)
Cut : Oval Cut
Approx Dimensions : 25.6x18.9x6.8 mm (1 mm = 0.0394 inch)
Color : Blue
Clarity : Opaque
Treatments : Color Enhanced
Origin : Africa
TOP IMPRESSIVE ORIGINAL 0.80 CTS BLUE SAPPHIRE GEMS
Gem Type : Natural Blue Sapphire (Authentic)
Weight : 0.80 Cts
Measurement : 6 X 5 MM Length and width. Depth : 2 MM
Shape : Oval
Color : Blue
Clarity : Translucent
Origin : Africa
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