Sterling Silver London Blue Topaz Oval Swirl Ring 925, December Birthstone Ring, Oval Blue Topaz Ring, 925 Topaz Ring
This ring is made with a London blue topaz on a sterling silver band. The topaz is an 8x6mm oval stone and is set into a 4-prong swirled band.
London blue topaz:
Size: 1.20 ct
London blue topaz starts out as a colorless white topaz, and is then heated and irradiated to achieve a beautiful dark blue color. Only extremely pale blue topaz occurs naturally, which is very rare. The color treatment of London blue topaz is stable and permanent. The color of blue topaz can vary from a light sky blue topaz to an intense deep London blue topaz. It can take several years of treatment to achieve the dark London blue topaz, making it the most valuable shade of blue topaz. London blue topaz has a hardness of 8 on the Mohs scale, making it a durable gemstone that can tolerate daily wear. London blue topaz is commonly used as the birthstone for December, as well as zircon, turquoise, and tanzanite.
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