From Heritage Auctions Lot #55042 in their Spring Fine Jewelry Auction scheduled for end of March... a pair of vintage diamond, pearl, black enamel, and 18K gold earrings, by French firm M. Gérard, established in Paris in 1968 by Louis Gérard, formerly of Van Cleef & Arpels.

Chaumet, the jewelry maison in Place Vendome, Paris since 1780, has produced many bow brooches over the centuries... this gorgeously diamond-studded and pearl-embellished corsage brooch, created by Joseph Chaumet in 1922 features in an article in online magazine,

A lovely circle to have around your arm... this hinged bangle set with oval rubies and single-cut diamonds is another piece for sale at Sotheby's auction on 20th March in London. A bobby dazzler!

A detail from the graceful ribbon bow motif diamond and ruby pendant necklace on offer at Sotheby's 20 March Fine Jewels sale. The chain is detachable so that the pendant can be worn as a brooch.

French, 1880s convertible pendant/brooch made in France and imported and sold in Russia. The bail is a later replacement.

The pin is marked with French eagle’s head assay mark for 18K gold and Imperial Russian import mark for 72 zolotnik gold standard.

The piece is finely crafted in silver topped gold. It is designed in Neo-Rococo style as an elaborate openwork scroll embellished with numerous white and one fancy color diamonds. The centre is set with an oval pink tourmaline framed by rose cut diamonds.