From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that redefines luxury.

Experts call it "the most vivid pink diamond" ever put for sale ... Hasn’t Been Wearing Her Wedding Ring: ‘I’ve Seen Some of the Comments’ All the Details on Selena Gomez's Marquise ...

All the details on Serratos ... adorned with a lab-created pear-shaped pink diamond weighing 11.66 carats. Serratos called the sparkler her “dream ring” and gushed over its “perfection ...

All the Details on Lady Gaga's Million-Dollar Engagement Ring (Which Includes Several Pink Diamonds!) ...