YUNUS & ELIZA. Solid Sterling Silver Messenger ring, £1440. www.yunus-eliza.co.uk

YUNUS & ELIZA. Solid Sterling Silver Messenger ring, £1440. www.yunus-eliza.co.uk

Every wondered why the cocktail ring was so-called? The habit comes form the 1920s during prohibition when women wore big jewels to draw attention to the illegal drinks in their hands. Today, big, bold rings add attention-grabbing colour to party dresses. Use them to provide sparkling contrast to LBDs and the season’s statement velvets and brocades – or to style up a pair of ripped jeans, probably the easiest way for day-to-night dressing. The key to a good cocktail ring? It’s a conversation-starter, an ice-breaker, the cause of sharp intakes of breath. Enjoy.

CHLOE. Gold-tone brass Lyzbeth ring, £215. <a href=

COMPLETED WORKS. Column Fragment ring in gold vermeil, £325. www.completedworks.com http://www.completedworks.com/store-silver-vermeil/column-fragment-ring-gold-vermeil

COMPLETED WORKS. Column Fragment ring in gold vermeil, £325. www.completedworks.com

IMOGEN BELFIELD. 'Marpesia rose gold ring, set with white porcelain and 0.01 carat coloured diamonds, £1,360. www.lamaisoncouture.com

IMOGEN BELFIELD. ‘Marpesia rose gold ring, set with white porcelain and 0.01 carat coloured diamonds, £1,360. www.lamaisoncouture.com

DANIELA VILLEGAS. Alpaca ring, from £18,500. http://justoneeye.com

DANIELA VILLEGAS. Alpaca ring, from £18,500. http://justoneeye.com

SOLANGE. Diamonds, Emeralds, Sapphires and Rubies in blackened 18ct yellow gold Eye ring, £POA.

SOLANGE. Diamonds, Emeralds, Sapphires and Rubies in blackened 18ct yellow gold Eye ring, £POA.

ALICE CICOLINI. Summer Snow Dark 9-karat gold multi-stone ring, £1,260. www.net-a-porter.com

ALICE CICOLINI. Summer Snow Dark 9-karat gold multi-stone ring, £1,260. www.net-a-porter.com

JACQUELINE CULLEN. Whitby Jet Ball Ring with Black Diamonds, from £1,130. www.lamaisoncouture.com

JACQUELINE CULLEN. Whitby Jet Ball Ring with Black Diamonds, from £1,130. www.lamaisoncouture.com

RUTH TOMLINSON. Cluster Oval Green Tourmaline Diamond Gold Ring, £1,580. www.econe.co.uk

RUTH TOMLINSON. Cluster Oval Green Tourmaline Diamond Gold Ring, £1,580. www.econe.co.uk

FRED LEIGHTON. 1970s David Webb enameled 18-karat gold ring, £19,800. www.net-a-porter.com

FRED LEIGHTON. 1970s David Webb enameled 18-karat gold cocktail ring, £19,800. www.net-a-porter.com

DAOU JEWELLERY. Morning Bright Ring, £3,800. https://daoujewellery.com

DAOU JEWELLERY. Morning Bright Ring, £3,800. https://daoujewellery.com

ATELIER SWAROVSKI BY PETER PILOTTO. Arbol Cocktail Ring, £159. www.swarovski.com

ATELIER SWAROVSKI BY PETER PILOTTO. Arbol Cocktail Ring, £159. www.swarovski.com

ORNELLA IANNUZZI. Coralline Atoll ring with opal cabochon and diamonds set in 18d gold. £8,800. http://ornella-iannuzzi.com

ORNELLA IANNUZZI. Coralline Atoll ring. £8,800. http://ornella-iannuzzi.com