There have been 1000′s of Costume Jewellery Designers over the last 100 years –

 Vintage Jewellery Designers – here are just a few.

Many Jewellery Designers from the 1920′s through to the 1960′s, apart from the top Jewellery House’s, didn’t always mark their jewellery. Many designers produced jewellery for various houses, these sometimes took on the House name or were unmarked.

These designers each had a particular style, theme and production processes that were unique to them, therefore many pieces can be attributed to these original designers although they may have no mark or name of the ‘House’ i.e. Juliana jewellery was designed for various houses – one of those being Sara Coventry.

A great site to refer to is https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/import/researching-costume-jewelry-history-jewelry-marks-fashion-jewelry-vintage-jewelry-research-jewelry-signatures/ where you will see alphabetically thousands of designers jewellery marks and the date when these were used. I don’t plan to replicate this information, but just to mention a few of my favourites.