If you benefit from what we're doing and want to give something in return, you can make a donation!
The Gem and Jewelry World's foremost Resource
on The Internet. Open to the public, Free of Charge! We are here to build a strong pool of
information for the benefit of Web's jewelers and craftsmen - and those
interested in jewelry and gemstones.
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
Chemical and mechanical processing work together to treat the vibratory finishing wastewater at Aro-Sac, increasing production, making the water reusable and rendering the sludge a non-hazardous waste... (2001) Complete Story
