Concave faceting

I facet for best brilliance.

Concave faceting technique
Tanzanite 3.13ct concave cut	Tourmaline 18.28ct concave cut
Amethyst 15.73ct concave cut	Tanzanite 4.10ct concave cut	Amethyst 6.16ct concave cut	Aquamarine 5.58ct concave cut
Tanzanite 5.02ct concave cut	Noreen Masaki concave faceting	Citrine 15.57ct concave cut	Rock crystal 5.72ct concave cut
Amethyst 7.00ct concave cut Take faceting one step further with the concave faceting technique.	Citrine 9.85ct concave cut Multi-axis precision and repeatability – at your control – enabling a true lapidary art.	The ultimate in inovative faceting with the ULTRA TEC FANTASY MACHINE ...your imagination and your creativity is unlimited.	You can generate forms of impressive intricacy -- or works of intriguing simplicity -- bringing you the satisfaction of artistic accomplishment. This system is for the experienced faceter who wants to move on to the challenge of fantasy designs.
befor re-cutting         &         after re-cutting Tourmaline 20.97ct           Tourmaline 18.28ct Only the pavillion was recut with concave facets. The crown, lenght and width remain untouched.
befor re-cutting         &         after re-cutting Tourmaline 20.97ct           Tourmaline 18.28ct Concave cut Pavillion. The girdle and crown was not recut.
befor re-cutting         &         after re-cutting Emerald 2.62ct                     Emerald 2.44ct Step cut                                     concave cut
befor re-cutting         &         after re-cutting Emerald 2.62ct                     Emerald 2.44ct Step cut                                     concave cut
befor re-cutting         &         after re-cutting Tourmaline 5.70ct           Tourmaline 3.90ct concave cut with a large backside table to lighten up the stone.
befor re-cutting         &         after re-cutting Tourmaline 5.40ct           Tourmaline 4.70ct Step cut                                     concave cut
befor re-cutting         &         after re-cutting Emerald 2.19ct                     Emerald 2.05ct Step cut                                     concave cut
befor re-cutting         &         after re-cutting Topaz 61.93 ct                       Topaz 56.14 ct Step cut                                      concave cut
befor re-cutting         &         after re-cutting Citrine 15.75ct                     Citrine 15.57ct                                             concave cut

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