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18k gold
Main Aquamarine 6.20 CT Santa Maria Colour
Natural diamonds 0.42 CT in vs clarity and E/F colour
Ring is set in PT900
total weight is 11.90 gram
Aquamarine’s color range is very narrow: It can be blue, very slightly greenish blue, greenish blue, very strongly greenish blue, or green-blue. The gem’s most valuable color is a dark blue to slightly greenish blue with moderately strong intensity. In general, the purer and more intense the blue color, the more valuable the stone. Most aquamarine is a light greenish blue.
Although some buyers prefer the more greenish natural color, most of the aquamarine in the market was heat-treated to give it more of a pure blue.
Fashioned aquamarines often have to be fairly large—generally over 5 carats—to show intense, dark color. Although small gems are rarely saturated enough to be attractive, stones from some mines in Africa—Nigeria, Madagascar, and Mozambique, for example—are known for intense color in sizes under 5 carats. For this reason, smaller, top-color stones might sell for more per carat than larger stones of the same color. |
