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Radiant
The radiant cut is a beautiful combination of the classic emerald cut and the sparkle of the round brilliant. The radiant cut is similar to the princess cut but is usually (though not always) a more rectangular outline and has blocked corners like those of an emerald cut. The cutting is a combination of the step-cutting of the emerald-cut diamond with some triangular faceting of the brilliant cut. The radiant cut is dramatic as a solitaire but also looks great paired with side stones such as baguettes, trillions, or princess shapes. A radiant-cut stone should be set with special prongs to hold the blocked corners securely.
While some radiant cut diamonds have 70 facets (25 on the crown, 8 on the girdle and 37 on the pavilion), the most common facet pattern has 62 facets (25 on the crown, 8 on the girdle, and 29 on the pavilion) as illustrated on following diagram. The truncated corners help to minimize chipping.
The radiant cut diamond is the first rectangular cut to have a complete brilliant facet pattern applied to both the crown and pavilion and as such presents a much more dazzling and brilliant diamond than the simple emerald cut.
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