Q. What is  white gold? A. is a new family of karat white gold casting grain that is formulated to achieve a very good white color, without the need for rhodium plating. |
Q.Is white gold as white as Rhodium or Platinum? A. does have an excellent white color with high reflectivity compared to other white gold alloys, but no white gold is as white as rhodium plate or platinum alloys, due to the yellow color of the pure gold in the alloy. |
Q.What does mean? A. stands for extreme white, Level 1 color rating. The World Gold Council's White Gold Task Force's guidelines for white color, specify that level 1 color rated white gold does not need a rhodium plate to achieve a good white color. |
Q.Is the high nickel content a problem ? A.Previous generations of high nickel gold alloys have historically displayed problems such as porosity in castings, brittleness, fire cracking, and susceptibility to stress corrosion cracking (predominately in prongs). Stuller has formulated with additives that help to reduce some of the problems associated with high nickel content, compared to high nickel white gold alloys without these additives. Under certain conditions, ALL nickel white gold including , are susceptible to stress corrosion cracking. |
Q.Is hard and brittle? A. is harder, but is not necessarily more brittle than lower-nickel content alloys. Stuller has formulated with trace elements that provide Grain Structure Control, that have proven to improve mechanical characteristics, such as prong bending and ring stretching, compared to high-nickel white gold alloys without these additives. |
Q. How does 's white color compare to Cobb's Precise White Gold? A. There is not a preceptible difference to the unaided human eye. |
Q. Does meet the European requirements for nickel release rates and fineness? A.Test samples, submitted by Stuller, have met the current EU requirements for nickel release rates. However, Stuller does not guarantee that all products manufactured in white gold will achieve the same results, as condition of sample can affect test results. - All karats offered in white gold are alloyed to EU specifications for gold fineness. 14 Karat is alloyed at .585 gold content. |
