TANZANITE

Tanzanite is the exquisite blue-purple variety of the mineral zoisite that is only found in one part of the world. Named for its limited geographic origin in Tanzania, tanzanite has quickly risen to popularity since its relatively recent discovery.

Zoisite had been around more than a century and a half before this rare blue variety was found in 1967. Trace amounts of vanadium, mixed with extreme heat, cause the blue-purple colour—which ranges from pale blue to intense ultramarine with violet undertones.

Due to pleochroism, tanzanite can display different colours when viewed from different angles. Stones must be cut properly to highlight the more attractive blue and violet hues and deemphasize the undesirable brown tones.

Tanzanite Double Halo Set in 9ct Yellow & White Gold

A stunning, glamorous oval cut tanzanite, surrounded by sparkling natural diamonds in a double halo effect. The centre stone and halo are set in 9ct yellow gold.

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Tanzanite and Diamond Flower Pendant in 9ct White Gold

Most of the tanzanite on the market today is heat treated to minimize the brown colours found naturally and to enhance the blue shades that can rival sapphire.

Tanzanite is still only found on a few square miles of land in Tanzania, near majestic Mount Kilimanjaro. Its price and availability are directly tied to mines in this region, most of which are now slowing production significantly.

Tanzanite measures 6.5 to 7 on the Mohs scale of hardness—which is not nearly as hard as the sapphire it often substitutes. Given its vulnerability to scratch during daily wear and abrasion, tanzanite is better suited for earrings and pendants than rings.

Between its deep blue colour and its limited supply, tanzanite is treasured by many, even if your birthday is not in December.

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BLUE TOPAZ

Through much of history, all yellow gemstones were considered topaz and all "topaz" was thought to be yellow. Topaz is available in many colours, and it’s likely not even related to the stones that first donned its name.

The name topaz derives from Topazios, the ancient Greek name for St. John’s Island in the Red Sea. Although the yellow gemstones famously mined there probably weren’t topaz, it soon became the name for most yellowish stones.

 

Marquise Blue Topaz Flower Necklace in 9ct Yellow & White Gold

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The most prized colour is Imperial topaz, which features a vibrant orange hue with pink undertones. Blue topaz, although increasingly abundant in the market, very rarely occurs naturally and is often caused by irradiation treatment.

The largest producer of quality topaz gemstones is Brazil. Other sources include Pakistan, India, Sri Lanka, Russia, Australia, Nigeria, Germany, Mexico, and the U.S. — mainly California, Utah, and New Hampshire.

Measuring 8 on the Mohs scale, topaz is a very hard and durable gemstone. Its perfect cleavage can make it prone to chipping or cracking, but when cut correctly, topaz makes very wearable and durable jewellery.

Blue Topaz Birthstone Collection

These simple sterling silver earrings and necklace with Blue Topaz will make a gorgeous gift for December babies.

Blue Topaz Necklace in Sterling Silver SHOP NOW
Blue Topaz Stud Earrings in Sterling Silver SHOP NOW
 

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