To prong or not to prong
Part 1 of 2
Some of ORRO's contemporary ring designs from Niessing take your breathe away. Literally. There are no prongs to hold on to the gems. Therefore you get to see the entire gem which you don't do with regular rings. With very refractive gems like diamonds, that translates to extra sparkles.
The whole ring acts like a tight spring to keep the gemstone in place. There are also tiny grooves in the metal which act as shelves. Tension rings have to be strongly constructed with special treatment and hardening processes. They also use 2-3 times the metal required for ordinary rings.
Friedrich Becker of the German company Niessing was the first to come out with tension rings back in 1981. Since then other tension ring designers have improved on the alloying processes so tension rings today are lighter but still retain their strength.
Wikipedia : Tension ring
Via and via
Original Post by THE BEADING GEM
Jewelry Making Tips - Jewelry Business Tips