Four rings with 0.85cts of calibre rubies, 0.85cts of sapphires, 0.75cts of emeralds and 0.22cts of diamonds all set in 9ct yellow gold. All coloured gem rings can reside within the diamond ring so multi functional. Each ring can be worn separately or in any configuration. Tell me how many? English circa 1960. Currently finger size U 1/2 (U.S 10.5)