Abstract: Pink colored metal alloys have a low gold content. The pink colored metal alloys of the present disclosure display a high level of tarnish resistance during extended use and wear, and have the appearance and properties comparable 10 karat (or above) gold alloys, which have a significantly higher gold content.

Abstract: A gem setting for gemstones includes a channel with walls having grooves for holding a portion of a gem girdle, such that when a gem having a crown is set into the channel, the upper portion of the groove extends over the crown of the gem. The upper part of the channel above the groove can be permanently bent or rolled over the crown of the gem to secure the gem in the ring channel. A method of setting a gem in the channel includes inserting the gem girdle in the grooves, without permanently bending the channel walls, until the gem is positioned within the channel such that if the gem and ring together are placed in an upside down position, the gem will not fall out of the channel. Next, the upper part of each channel is permanently bent over the crown of the gem, to thereby secure the gem in the channel.

Abstract: A gem setting for gemstones includes a channel with walls having grooves for holding a portion of a gem girdle, such that when a gem having a crown is set into the channel, the upper portion of the groove extends over the crown of the gem. The upper part of the channel above the groove can be permanently bent or rolled over the crown of the gem to secure the gem in the ring channel. A method of setting a gem in the channel includes inserting the gem girdle in the grooves, without permanently bending the channel walls, until the gem is positioned within the channel such that if the gem and ring together are placed in an upside down position, the gem will not fall out of the channel. Next, the upper part of each channel is permanently bent over the crown of the gem, to thereby secure the gem in the channel.

Abstract: A ring setting is made from a nickel-free palladium white gold alloy that contains 7-12% by weight palladium; 50-65% by weight gold; 25-32% by weight silver; and 1-5% by weight zinc. Such ring settings are resistant to chemical or stress corrosion cracking.