2007-08-22 22:41:51 · 4 answers · asked by Anonymous in Beauty & Style ➔ Fashion & Accessories
White gold was developed as a cheap alternative to platinum in jewellery. Standards have now been developed where "White Gold" has been defined as having a Yellowness Index value of 32.0 or less. There are three grade of white gold, bassed solely on color . Grade 1 (Premium white grade) – good white color, no need for rhodium plating.
Grade 2 (Standard grade) – reasonable white color; rhodium plating is optional. Grade 3 (Off-white colour) – needs to be rhodium plated. http://www.gold.org/jewellery/technology/colours/white_guide.html
PDF paper at this link is titled "What is a White Gold?" http://www.gold.org/rs_archive/SFBK_WhitegoldChris%20Corti.pdf
2007-08-27 11:09:42 · answer #1 · answered by Metallic stuff 7 · 3⤊ 0⤋
normal 18 or 22 carat gold elelctroplated with rhodium gives a whitish / silver appearance and is called white gold. infact platinum is also substituted by a coating of rhodium on silver and sold in the market as platinum.
the rhodium plating can also be 'removed'
2007-08-23 05:56:54 · answer #2 · answered by raindrops 5 · 0⤊ 0⤋
i believe cotton - egypt
2007-08-23 09:02:48 · answer #3 · answered by charlatan 7 · 0⤊ 0⤋
"white gold"????
Whats that??????
2007-08-24 13:01:20 · answer #4 · answered by Anonymous · 0⤊ 1⤋