Cubic zirconia is denser than diamond, and it's how experienced jewelers tell them apart without testing equipment. For buyers, it also means carat-for-carat comparisons between CZ and diamond don't translate directly to size.
Origin Story
Three origins have defined the sapphire quality hierarchy across the trade's history: Kashmir, Sri Lanka, and Burma. Kashmir stones, now extremely rare, maintain the color benchmark that gemologists have recognized for well over a century.
Heritage & History
Since 1952, Ross-Simons has been helping people find jewelry they love. More than seventy years of that work builds a specific kind of knowledge: what matters, what lasts, and what keeps customers returning across generations.