Zircon is a birthstone for the month of December, along with turquoise and tanzanite. Zircon found in Australia is the oldest mineral on earth: 4.4 billion years old. Zircon sometimes contains traces of …

The high specific gravity of zircon, however, can usually separate it from any other gem and is simple to test. Also, birefringence depends on the cut of the stone in relation to its optical axis.

Jul 12, 2024 · Everything you ever wanted to know about zircon. Find value guidelines, scientific data, expert comments, and more in our Gemstone Listings.

Discover zircon gemstones, from their ancient origins to vibrant colors like blue and green. Learn about their properties, healing benefits, and how to choose quality zircons with our expert buying guide.

May 22, 2018 · Zircon is a zirconium silicate mineral known for its resemblance to diamond and status as the oldest mineral on Earth. Discover the healing properties, history, and meanings behind zircon …

Sep 1, 2025 · Discover the brilliance of zircon gemstones in our ultimate guide. Learn about zircon colors, crystal properties, value, including the most expensive zircon ever sold and why this dazzling …

Zircon is an important gemstone of many colors, and is an historical gemstone used for thousands of years. It is sometimes looked upon as a cheap Diamond simulant, but in actuality it can be a valuable …

Zircon is a popular gemstone and the primary ore of zirconium. It occurs as tiny crystals in many types of rocks but is usually mined from stream and beach sediments.

Feb 1, 2025 · Zircon is a naturally occurring gemstone composed of zirconium silicate. Often mistaken for cubic zirconia, which is a synthetic gem, zircon is highly valued for its dazzling luster and natural …

Sep 1, 2022 · Gem-A Gemmology Tutor, Pat Daly, explains what makes zircon gemstones so special and explores the properties that make this underappreciated gemstone a great choice for jewellery.