When it comes to purchasing a diamond, understanding the cost is crucial. With many factors at play, from carat weight to ...

From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...

Algordanza's prices start at $3,000 for a 0.3 carat ... The company recently took a $48,000 order for 2-carat diamond. After 10 months of growth, the resulting gem actually wound up being 1. ...