The Power of Persistence: Cylindrical Gem Designs

Williamsburg, Mass., jewelry designer John J. Kennedy is one of only a dozen bench artists to patent a jewelry-manufacturing process in the 20th century. His two patented processes – channel- and aperture-setting of cylinder gemstones, or “Cylettes” – aren’t terribly complex. But there’s been nothing easy about getting where he is today. Kennedy designs and manufactures jewelry set with cylinders of natural and synthetic gems. The shape of the gems gives Kennedy’s jewelry an appearance like no other. His aperture setting allows you to see color not only from above, but also through the cylinder ends. The recent addition of diamonds mounted at the aperture has resulted in brilliant white diamonds with flashes of Cylette colors. Cylindrical gems are more durable than faceted stones; their added strength facilitates mixing of colors and creation of “vivid and striking co

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