December (Blue Topaz)

• Ranges from dark turquoise blue to an intense aqua.
• Mohs scale of hardness 8

Blue topaz rings come in a variety of styles. The gemstone is known for its durability and pale-blue color although these rings are also available with a dark blue variety of topaz known as London Blue. Frequently, this is made from a variety of topaz that has been heat-treated and irradiated to produce the permanent color change. In nature this color may be found, though it is quite rare. Blue topaz rings make great gifts for those whose birthdays are in December. It is the birthstone for that month.
Blue Zircon is the alternate gemstone for this month

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