I recently bought this emerald cut diamond halo ring in 18k white gold to wear as a RHR - .25 carat centre stone and .50 carat weight total including the side stones. I think it looks a lot bigger than the carat weight would suggest. I love the emerald cut of the centre diamond and think it is perfectly suited to a halo design, however I like princess cut and cushion cut diamonds in this setting too. Not so keen on brilliant cut diamonds in a halo which is surprising since that’s my preferred cut of diamond in almost any other design.