12. Brooch with Diamond Monogram
Wearer: Lady Margaret
Since 1951, the owner
Value Estimate: $200,000
Fans of Netflix’s The Crown will be aware that Princess Margaret was the more stylish sister, unencumbered by Elizabeth’s restrictions and so slightly more inclined to wear something purely for fun. In 1951, this specific brooch was either commissioned or given as a gift.

Princess Margaret’s Diamond Monogram Brooch | Facebook.com | @Christie’s | Pinterest
The tiny but exquisite piece, which had the letter “M” crowned, sold for about $200,000 a while back, $195,000 more than Christie’s first estimate. Compared to some other pieces we’ve seen, this one is far more subdued, but that’s part of its appeal.
