There's a reason this cut is called princess—from sophisticated solitaires to glitzy pavé halos, these square-cut sparklers are royally stunning.

Style 32-3PR75, princess-cut diamond engagement ring with asscher-cut diamonds along the shoulders, a crescent-shaped pattern frames the profile of the French-cut style setting, starts at $8,270 (center stone not included), Tacori

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Photo: Courtesy of Tacori