Jewelry Owned by Jackie O., Queen of Spain on Block at Spring Auctions

Like clockwork,Sotheby's and Christie's this April and May will offer up a range of rings, earrings, tiaras, and brooches from some of the most illustrious aristocratic families in the world. Occasionally the lot descriptions will just be a tease—a $700,000 diamond necklace at Sotheby's is murkily listed as "Property of a European Imperial Royal Family," for instance—but there are other objects where the consignors are less discreet, and you'll know exactly which Bourbon king bought what (and when) for his wife/third cousin. The following are highlights, including a few American-owned items thrown in for good measure; if Jackie O doesn't count as royalty, then no one should.

Dollar figures are auction house estimates.

(bloomberg.com)