NORTH (812) 422-4351 4511 FIRST AVENUE
EAST (812) 479-6868 601 S. GREEN RIVER ROAD
Drostes Jewelry Shoppes
NORTH (812) 422-4351 4511 FIRST AVENUE

EAST (812) 479-6868 601 S. GREEN RIVER ROAD

Crown Angle

The crown angle is the angle between the bezel facets and the girdle plane. It primarily affects dispersion or the fire in a diamond.

The Ideal Crown Angle for a Fancy Shape Diamond may vary from that of a Round Brilliant Cut diamond. Please ask one of Droste's Certified Gemologist-Appraisers to guide you when selecting the proper crown angle for a Fancy Shape Diamond.

Round brilliant cut diamonds with AGS 0 ideal cut have crown angles between 33.7 degrees to 35.8 degrees. Ideal crown angles on fancy shape diamonds can be different than those of a round brilliant cut diamond.

Round Brilliant Cut Diamonds with ideal to very fine cut proportions have crown angles between the ranges of 32.2 and 36.8 degrees.

It is difficult to visually recognize differences in the appearance of diamonds that have crown angles within the range of ideal to very fine. Shallower crown angles produce less fire, especially if the diamond has a large table. When the crown angle on a round brilliant cut diamond is below about 32 degrees, it can reduce durability by making the diamond susceptible to chipping. In contrast, crown angles steeper that 36 degrees give the diamond a lumpy, top-heavy appearance, and disrupt the balance of fire and brilliance. High crown angles also cause darkness under the bezel facets.

If you have any more questions concerning crown angles or proper cut proportion, contact our Droste's Certified Gemologist-Appraisers today.

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