Natural sapphires are gemstones that belong to the corundum mineral family and are found in various colors, including blue, pink, yellow, green, purple, and orange. They are formed from aluminum oxide with trace amounts of other minerals such as iron, titanium, and chromium, which give them their distinctive colors. Sapphires are typically found in alluvial deposits, which are deposits of soil and sediment that have been moved by water, or in igneous rocks such as granite and basalt. They are often found in countries such as Sri Lanka, Madagascar, Australia, and Thailand. Sapphires are highly valued for their beauty, durability, and rarity. They are one of the hardest gemstones, with a score of 9 on the Mohs scale of hardness, making them very scratch-resistant and suitable for daily wear. They are also highly prized for their luster, clarity, and brilliance. Blue sapphires are the most well-known and popular variety of sapphire, but sapphires are found in many other colors as well. Pink sapphires, for example, are highly sought-after for their romantic and feminine hues, while yellow sapphires are popular for their sunny and cheerful tones. Green sapphires are prized for their earthy and natural colors, while purple and orange sapphires are highly valued for their rarity and uniqueness. Sapphires have been prized throughout history and are often associated with royalty and nobility. In ancient times, they were believed to have protective and healing powers and were often worn by kings and queens as a symbol of wisdom and power. Today, sapphires are still highly valued and are commonly used in jewelry, including engagement rings, necklaces, earrings, and bracelets. Specific Gravity : 3.95-4.03 Refractive Index : 1.762-1.788 Hardness : 9 on Moh's Scale (Hardest after Diamond) Chemical Formula : Aluminium oxide, Al2O3 Luster : Vitreous Melting Point : 2030–2050 °C Birthstone Month : September

You will receive mixed lot of these colors - Red, Yellow, Pink, Blue, Orange, Green, Black