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American gem carver Michael M. Dyber of Rumney, New Hampshire, has been winning awards for his innovative designs for more than a decade. In the past, he has developed carved gems with 'optic dishes'-concave polished curved facets-that reflect and refract light into interesting patterns. This year at Tucson, he introduced gems fashioned with polished cylindrical channels, for which he has trademarked the name 'Luminaire.' These particular manufactured 'inclusions' might be mistaken at first glance for natural etch tubes, or even prismatic mineral inclusions; however, their polished cylindrical shape demonstrates their manufactured nature |
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