Improved 14-karat rose-colored gold alloy compositions include: about
58.5% gold; about 9.0-12.0% silver; about 0.0-0.2% zinc; about 0.3-0.4%
cobalt; about 0.0-0.02% iridium; and about 29.0-33.0% copper. Improved
18-karat rose-colored gold alloy compositions include: about 75.2% gold;
about 7.0% silver; about 0.0-0.2% zinc; about 0.3-0.4% cobalt; about
0.0-0.02% iridium; and about 17.0-17.5% copper. The hardness of these
compositions are capable of being selectively changed between their
respective annealed-hardness and age-hardness values. The color of these
compositions is between about 5-7 CieLab a* color units and between about
17-21 CieLab b* color units.