Shared by @sandracronan: White paste, turquoise porcelain (most likely Sevre) mounted in Pinchbeck, circa 1830. Wheatsheafs for fertility, oak leaves for stability, and strength and butterflies for romance. Via http://diamondsinthelibrary.blogspot.com.
"Diamond tiara, circa 1900 The centre designed as two wreaths, each swing-set to the centre with circular-cut and pear-shaped diamonds, between two modified rectangular panels of open work floral and foliate design, set with circular-cut and rose diamonds, central motif detachable and can be worn as a brooch or pendant, the panels can be worn as brooches. 18,750 GBP" (quote) via sothebys.com