Based on the word "topaz", the extra "z" makes this flexible domain stand out from the crowd.
The word "topazz" contains only six characters and just two syllables. Two syllable names make popular global brands. Examples of two popular syllable names include WeChat, Ikea and Pocket.
This domain was first registered in January 2002. Older domains have an advantage when ranking in search engines.
Topazz.com is a dot-com domain. Dot com domains are the most valuable top-level-domain in the world, famously used by websites like youtube.com. When you own a dot-com, it is much easier to rank for your own name in search engines.