▪️ Topaz can be distinguished from diamond, ruby, sapphire, citrine, zircon and tourmaline by its hardness. Topaz is a very versatile material․ Therefore it can be cut into a great variety of shapes, such as square, round, octagon, pear, oval, heart and other shapes.
▪️ Precious topaz is a birthstone for November and blue topaz is a birthstone for December. Blue topaz is the gem of the 4th anniversary and Imperial topaz is the gem of the 23rd anniversary.
▪️ Topaz ranges from colorless (white) to yellow, orange, red-brown, light to dark-blue, pink to red, violet and light-green. This is the reason why it can be mistaken for many other gemstones. Most unadulterated topaz is colorless or pale blue. The most rare and valuable topaz is yellow, or pink to reddish-orange, and is known as “imperial topaz” or “precious topaz”. Some yellowish-brown topaz gems can gradually fade when continually exposed to daylight. A lot of topaz is treated in order to enhance the color. A deep blue enhanced topaz is known as “London blue”; medium blue is called “Swiss blue” and light-blue is termed “sky blue”.
▪️ Topaz is transparent to translucent. It exhibits high clarity with few inclusions, so topaz gemstones can be examined by the naked eye and found to be “eye clean”, which means that no imperfections can be seen.