At Shamin's we are proud to offer all of our custom creations in your choice of Yellow, White or Rose Gold in 10K, 14K, 18K and in some cases even 22 and 24K.
At Shamin's we often get asked why we don't set diamonds in 22Kt gold. Pure gold (fine gold) is softer than pure silver but harder than tin. Its beauty and luster are unmatched by any alloyed golds. The extreme malleability, ductility, and softness of pure gold make it practically useless for jewelry applications like ours, especially if it includes precious diamonds. Alloying elements (other metals) are added to gold to increase the toughness and hardness of the gold alloy. While almost any metal can be alloyed (melted) with gold, only certain metals will not dramatically change the color or make the metal brittle. The addition of indium, for instance, turns gold purple and gives gold alloy the workability of glass.
Over time, certain percentages of gold have become legally recognized "karats." The karat indicates the amount of gold as a percentage of the total, i.e. 24 karat is 100 percent gold. Therefore 22 karat is 22/24 or 91.7% pure gold and 18 karat is 18/24 or 75% pure gold and 14 karat is 14/24 gold or 58.33 percent gold. Gold standards vary around the world. In Canada, 24, 22, 18, 14, and 10 karat gold are allowed to be sold as karated gold.
In karated gold, there is a known proportion of metals in the non-gold percentage. These metals provide the various colors and hardness of karated golds. Typical alloying elements and their color effect are
- Copper Reddening
- Silver Greening
- Zinc Bleaching
- Nickel Whitening
- Palladium Whitening
Examples of the compositions of different colors are
- Yellow: Gold, copper, silver, zinc
- White: Gold, copper, nickel (or palladium), zinc
- Red: Gold, copper
- Green: Gold, silver
Adjusting the proportions of base metals (non-precious metals) provides the array of colors on the market. They also enhance properties such as castability, grain size, hardness, corrosion resistance, workability, ultimate strength, and ductility. These additions can dramatically change the properties of the karated gold for better or worse.
Knowing how the additions will affect the karated gold greatly enhances the possibility of a superior final product. In deep drawing of metals, it is important to have a metal which will elongate or stretch a great deal before fracturing, thus high ductility. The requirement for an earring post would be a high tensile strength (a great deal of force needed to get the material to permanently deform or bend). It is imperative to select the proper karated composition for the desired application.
Our White Gold is offered also in 14K X1 White, 18K X1 White and 19K White. Features include
- Exceptional white color and finishes
- Excellent surface appearance
- Clean and bright finish
X1 FOREVER WHITE
SEE THE DIFFERENCE.
With our X1 white gold, you get premium white color that provides the look of platinum at the cost of gold. You no longer need to rhodium plate in order to achieve a bright white surface finish. X1 white gold has been enhanced with trace elements that provide grain structure control, ductility, and improved mechanical properties, while maintaining excellent casting characteristics and surface finish.
- Grade 1 bright white metal (No rhodium plating required)
- Comparable melting temperatures to standard white gold
- Meets European standards for nickel release (EN 1811:1999)
- Premium white color that lasts
- Dead set with very little prong spring back
- Can be used with other precious metals
- Increased hardness
HOW WHITE IS WHITE?
Much of today's white gold jewelry is a yellowish or off-white karat gold alloy that has been rhodium plated to provide a bright-white finish. Unfortunately, when the rhodium plating wears off, it becomes obvious that the gold is not very white at all. Because of this issue, the Manufacturing Jewelers and Suppliers of America (MJSA) and the World Gold Council created the White Gold Task Force. The WGTF's purpose was to create guidelines and a grading system for determining the color of white gold alloys, and to define how white an alloy must be to be classified as a white gold. As a result of this classification system, the levels or grades of whiteness for which rhodium plating is considered necessary, optional, or not needed were developed.
WHY DOES GOLD DISCOLOR FINGERS?