The Poltimore tiara, made by Garrards for Florence, Lady Poltimore,wife of the second Baron Poltimore, in 1870 was worn by Princess Margaret on her wedding day. The tiara was sold after princess Margaret's death for about 2 million dollars.
DIAMOND TIARA of 9 old-cut diamond graduating flowerhead clusters centred by old-cut pear cushion shape diamond collet highlights, the central principal very light pink diamond interspersed by ten similarly-set stylised cusp motifs of ribbon scroll design
Adaptable tiara made in 1912 by Boucheron for Barbara Kelch - it can be (T to B) hung with opal drops, entirely diamonds, drops that may be cabochon emeralds or pearls (the photo is indistinct) or diamonds with upright tear-drop shaped diamond finials.
The Londonderry Tiara (top) worn by Theresa, Marchioness of Londonderry (left) with enormous pearl spikes and (right) with inset crown frame and upright cross, probably at the Devon-shire House Costume Ball of 1897 where her jewelry dazzled everyone.