Shop the Astra lab Ruby and Diamond Halo Shoulder Set Octagon Cut Ring, which features a 1.90ct lab grown ruby, set amongst a halo of 0.25ct H/SI quality diamonds. The consciously crafted diamonds that surround the main stone and cascade out onto the sterling silver band sparkle beautifully, with the halo effect making the ruby appear even more impressively sized. This timeless piece makes an excellent gift for any recipient, but due to the main stone’s meaning, it makes a particularly perfect present for a July birthday. When shopping with The Diamond Store, benefit from free worldwide delivery, sleek packaging a 5-year guarantee.