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Blue Gold? Would you?

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In researching gold for an upcoming blog I stumbled upon these stunning rings. Each ring has a different level of blue gold from light to deep, dark, almost black blue gold.

 

This ring, immediately below, is a medium dark blue gold band with one Pink Sapphire gemstone.

Pink Sapphire Ring

 

 

 

 

This ring, immediately below, is a light blue with a Blue Aqua Zircon stone.  This ring is for sale by the Slim Wallet Company.  See https://www.slimwallet.co/products/blue-gold-light-blue-aqua-cz-crystal-ring for details.

 

Blue Aqua Zircon

 

Intermetallic compounds, as these three blue gold rings, are obtained by fusing a strictly fixed ratio of components determined by the chemical formula. These metals are characterized by having low plasticity and high fragility — they can crack or be fractured after the fall or become dented from a blow, so it limits their broader usage in the jewelry industry.

 

Blue gold is a gold alloy with indium — AuIn2, containing 46 percent of 11-carat gold and 54 percent indium. The blue intermetallic compound is very fragile.

 

The compound of gold and gallium — AuGa2 has a lighter bluish hue and contains 58 percent of 14K gold. This gold alloy is more solid than AuIn2.

Buyer Beware

During your search for blue gold, you may find a few online stores selling non-vintage blue gold products. Buyer beware – these pieces very likely aren’t made with blue gold alloy. Read the fine print and you’ll probably find that the item is made from another color of gold and plated with blue rhodium.

Jewelry pieces made of genuine blue gold are rare.

Posted in: Sample category

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