In honor of this month's magical birthstone, Bonhams & Butterfields is dedicating an entire auction to opals, from fiery Mexicans to cool Australians. There's even an opal hat.
Few stones can match the legendary powers of a diamond, from betrothal to battlefield. A flawless diamond was considered the ultimate protector, said to ward off serpents and evil spirits, fire and flood, poison, illness and thieves.
December babies have as their birthstone a talisman imbued by ancient cultures with all the powers of sea and sky - two potent forces when you live off the land. Turquoise jewelry is as fashionable today as it was 7,000 years ago but the natural, untreated variety is getting harder to spot.
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