Discover the Astra Lab Ruby and Diamond Halo Round Cut Necklace. The rich red 3.60ct ruby is surrounded by a halo of 0.20ct of HS/I quality, consciously created diamonds. The halo effect emits beautiful sparkle, and the illusion of an even larger centre stone, while the sterling silver chain is given a modern twist with small diamonds expertly crafted into it. Wear your new ruby piece every day or save for special occasions; the choice is yours. When purchasing from The Diamond Store, benefit from free worldwide delivery, sleek packaging and a 5-year guarantee.