SHOP: 8 best halo engagement rings: A complete guide 18ct White Gold Diamond Ruby Halo Ring, £1,700, Beaverbrooks She's sure to say yes to this romantic ruby engagement ring. Crafted in 18ct ...

It features a stunning Sri Lankan 12ct cornflower blue oval faceted sapphire surrounded by 14 round brilliant cut diamonds, set in 18ct white ... three stone ruby and diamond ring’s colour ...