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Octagonal Aquamarine, 31.04cts

Aquamarine octagon 22.7×15.5mm, 31.04cts. BrazilJoanna Hardy says: €œThis is a very special stone. It is superb. The Santa Maria de Itabira mine in Minas Gerais, Brazil has produced some of the highest quality aquamarine stones. The mines there are now exhausted and good examples of stones from there are highly sought after. Often, aquamarines are more of a greenish blue and they are heat treated to remove the green tint, but stones from Santa Maria generally do not need to be heated because they have such a natural, desirable blue €“ a unique blue with even saturation of colour. This stone was previously set in a 1930s necklace and now returns to the market.€

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