Sapphire is famous for its rich blue, but the gemstone also occurs in pink, yellow, padparadscha and beyond. SICO International explores the growing appeal of fancy coloured sapphires, what gives them their hues, and why collectors are increasingly looking past blue.

Cristiano Ronaldo’s proposal to Georgina Rodriguez was as grand as you’d expect—featuring a jaw-dropping 30-carat engagement ring that’s now the talk of the jewellery world.