The star of the show, however, is a 15.51-carat fancy vivid yellow diamond (pictured top ... and Hong Kong from March 20 to 28. You can visit the Phillips website to peruse the full catalog.

Colored-stone engagement rings are a jewelry trend loved by celebrities, including Kate Middleton, Lady Gaga, and Jennifer ...

At the 2019 Oscars, Lady Gaga stunned in a 128.54-carat yellow diamond necklace ... rocking a white Bob Mackie gown and $20 million in Harry Winston diamonds — chandelier earrings, stacked ...

So jewelers didn't want them, especially when they could use brighter pink, blue, or yellow diamonds ... gem-quality brown diamonds were worth about $1,500 per carat, but now many sell for ...