Abstract: A high purity gold alloy alloyed with at least two of the metals zirconium, titanium and magnesium for jewelry manufacture, containing 75-99.5% Gold; at least two of 0.01-1.5% Zirconium, 0.01-1.5% Magnesium, and 0.01-1.5% Titanium; 0-24.98% Copper; 0-24.98% Zinc; and 0-24.98% Silver by weight. The gold alloy has 75-260 Vickers hardness and specific gravity 14-19 g/cc. A gold alloy with zirconium, magnesium, and titanium has a rich yellow colour. A gold alloy with zirconium and magnesium has a greenish yellow colour. A gold alloy with zirconium and titanium has a whitish yellow colour. A gold alloy with magnesium and titanium has a pale yellow colour. The gold alloy shows low wear during polishing. The gold alloy includes 18-24 Caratage, suitable for jewelry manufacture due to its low specific gravity.

Abstract: A high purity gold alloy alloyed with a combination of metals or at least two metals out of zirconium, Titanium and Magnesium for jewelry manufacture and containing 75-99.5% of Gold, 0.01-1.5% of Zirconium, 0.01-1.5% of Magnesium, 0.01-1.5% of Titanium, 0-24.98% of Copper, and 0-24.98% of Zinc and 0-24.98% of Silver by weight. Gold-Zirconium, Magnesium, Titanium Gold alloy has 75-260 Vickers hardness and specific gravity 14-19 g/cc. It has more than 1.25-2 times high springiness at applied load/pressure and is compatible in terms of the color retention properties thereof by human eye, when compared with the conventional gold alloys. The 3-metal combination (Zr+Ti+Mg) Gold alloy has RICH YELLOW colour, while out of the 2-metal combinations, (Zr+Ti) Gold alloy has a WHITISH YELLOW colour, (Zr+Mg) Gold alloy has a GREENISH YELLOW colour and (Mg+Ti) Gold alloy has a “PALE YELLOW” colour. Gold alloy shows lower wear during polishing.