Engagement rings that are perfect for Gen X style include the round brilliant or classic emerald in platinum ... marquise as a center stone, and tends to prefer yellow or rose gold for their settings.

While some brides are embracing gemstones and colored diamonds, settings ... "diamond ring with center emerald cut and diamonds in platinum, $40,000, featherstonedesign.com. Pear and marquise ...

Selena Gomez is on her marquise diamonds ... "Considering the large center in an eternity setting, we estimate this to be about 6 carats and the value would be around $225,000.” ...