I have a question. We were looking at cocktail rings with my sis, and I really liked some topaz rings. The prices were reasonable, and I intend to buy a very nice big topaz and diamond ring (topaz around 5 carats). My sis said I'm crazy to spend so much money on topaz, since Cz (cubic zirgonia) is harder and brighter than topaz. I did a search and found out that topaz has a hardness grade 8, and Cz has 8.5. Which means it will last longer. Diamond has a hardness grade 10, and it is the hardest substance in the world...
This whole hardness thing got me thinking, and I need some info from those who are more familiar with these matters.
This whole hardness thing got me thinking, and I need some info from those who are more familiar with these matters.