4.09 Carat Blue Spinel

Blue spinel is a mineral belonging to the spinel group, which contains several different varieties of gemstones. It typically forms in tabular or octahedral crystals and has a Mohs hardness rating of 8, making it quite durable. The color of blue spinel ranges from light baby blue to deep navy, although some rare specimens exhibit shades of green or purple. Its name comes from the Latin word “spina” meaning spine, as its shape often resembles.