The diamond ring soccer icon Cristiano Ronaldo used to propose to his longtime partner Georgina Rodriguez could be as large as 50 carats. How does it stack up against other famous engagement rings: https://t.co/cTgfEMBQKp ...

The diamond ring soccer icon Cristiano Ronaldo used to propose to his longtime partner Georgina Rodriguez could be as large as 50 carats. How does it stack up against other famous engagement rings: https://t.co/O8jdfZmlrc ...

Diamonds take over a billion years to grow in nature. In a lab, it takes just 7 days. Since the 1950s, engineers have been growing diamonds by mimicking the intense heat and pressure of deep in the earth's surface.But it's only with recent advances in production methods that have made it cheaper and easier to produce highquality diamonds have they entered the jewelry market. And demand has exploded. In the US, around 50% of engagement rings now feature a synthetic stone.This has left the natural diamond ind ...