White gold jewelry is a hot fashion trend that does not show signs of cooling off any time soon. Manufacturers are producing it, retailers are buying it, and consumers are demanding it, but none have a clear definition of what alloys can truly be called "white" -- until now. A White Gold Task Force led by MJSA and the World Gold Council, comprising members of the supply, manufacturing, and retail components of the jewelry industry, has established a definition of white gold. After measuring more than 70 samples of 10k, 14k, and 18k white gold jewelry using the CIELab and ASTM Yellowness Index, the Task Force defined "white gold" as a karat gold with a Yellowness Index value of 32 or less. It also proposed a three-tiered grading system in which to categorize white gold as Grade 1, Grade 2, and Grade 3....
(2005) Complete Story
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