Sponsored by the Gemological Institute of America
Yael Designs creates new gem setting technique
With the $119,000 “Sentience” bangle, the fine jewelry brand has debuted new technology that allows a gemstone to be set within another gemstone in a seemingly invisible manner.

San Francisco--One jewelry brand is finding new things to do with its colored gemstones.
According to Yael, this is the first time that a gemstone has been set inside another stone in such a way that the two appear “entirely seamless and translucent.”
Yael founder Yehouda Saketkhou designed the bracelet and created it with the help of gem cutter Glenn Lehrer. They used a gem cut that allows a hole to be carved in the middle of a gemstone--a technique known as the TorusRing Cut developed earlier by Lehrer--and took it to a new level by combining the two stones so that their bond is invisible.
The gems actually are held together by small platinum wires, but the unique cut creates a mirror effect that makes the setting invisible and allows the dark blue color of the tanzanite to shine through the cushion-cut aquamarine.
The bangle is just the first piece in a collection that will launch at the 2016 JCK Luxury show in Las Vegas featuring the gemstone-within-gemstone technique.
“When Yehouda approached me with his audacious vision of an invisibly set stone-within-stone piece, I was intrigued by the challenge,” Lehrer said. “It was like jumping from a Prius into a Ferrari. Yehouda’s vision stretched me to think outside the box of what was possible.”
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