When choosing gemstones for your jewelry project, in addition to color, it is helpful to consider the gem's Mohs rating. The Mohs scale of mineral hardness is used to determine a stone's hardness and scratch resistance. This scale ranks stones from a 1 - 10, with diamonds considered the hardest on the scale at a 10 and softer stones like opals considered a 5.5 - 6.5. At Takayas Custom Jewelry, we are happy to offer an assortment of precious and semi-precious stone options. Below each stone's description are the color varieties it is available in.
Sapphires are a popular deep blue gem from the mineral family corundum. At a Mohs’ hardness rating of 9, sapphires are second in hardness only to diamonds, which makes them ideal for wedding jewelry. Sapphires also come in a variety of other color options including white, pink, orange, and yellow.
Like sapphires, rubies are from the same mineral family of corundum, and they have a Mohs’ hardness rating of 9. Rubies are known for their lovely crimson color, and their durability makes them a great red gem choice.
Emeralds are the most valuable form of the mineral beryl. They are known for their vivid forest green color. Although emeralds are a very hard gem, rating a 7.5 - 8 on the Mohs' scale, they can also sometimes be brittle.
Alexandrites are a rare, color-changing variety of the mineral chrysoberyl that can appear bluish-green in natural and fluorescent light to brownish or purple-red in incandescent light. They rate an 8.5 on the Moh's scale. Because naturally mined alexandrites are incredibly rare, lab-grown alexandrites are a popular choice because of their availability and significantly less expensive price point.