9/11/2023 0 Comments Colour of sapphire![]() ![]() In the gemstone trade, these are also referred to as ""Linde,"" pronounced ""Lin-dee. The gray, blue-gray, and white ""star"" sapphires frequently show a more distinct star. These special stones possess the deep blue color of the finest sapphire. The star sapphire reflects light, showing a glittering star with six points. Like rubies, sapphires can come with a natural six rayed star inside, which is called the ""star sapphire"" and is extremely rare. Some stones exhibit the phenomenon known as color change, most often going from blue in daylight or fluorescent lighting to purple under incandescent light. ![]() They come in violet, green, yellow, orange, pink, purple, and intermediate hues. The most desirable color sapphire is blue, and the most desirable shade of blue is referred to as "cornflower blue."" It is neither light nor dark blue. Besides blue sapphire and ruby, the corundum family also includes so-called fancy sapphires. Heat treatments have become common in recent years, as a way of improving color as the beauty of a sapphire is judged by the richness and intensity of its color. The color of a sapphire is created by various amounts of iron and titanium in the stone, the combination of which produce varying colors. Fine sapphires are most available under two carats, but they can also be found in sizes from five to ten carats. ![]()
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