Long Jewelers Coupons May 2025 - 25% OFF

For four generations since 1945, Long Jewelers has been dedicated to providing high-quality jewelry and excellent personal customer service at the best value. Sapphire at Long Jewelers is a gem variety of mineral corundum, an alumina. Trace amounts of other elements, such as iron, titanium, chromium, copper or magnesium, can make corundum appear blue, yellow, purple, orange or green. The chromium impurities in corundum produce a pink or red hue, which is called ruby. Sapphire, along with rubies, emeralds and diamonds, is considered one of the four gems. According to the Mohs mineral hardness standard, the hardness of sapphire is 9.0. Among natural gemstones, only Mohsite and diamond are harder, the Mohs hardness of diamond is 10.0, and the hardness of Mohsite is between sapphire and diamond.