Shop › 1.01ct Diamond Halo Engagement Ring G SI2 GIA certified Image 1 of 1 1.01ct Diamond Halo Engagement Ring G SI2 GIA certified $5,200.00 1.01ctw natural diamond center stone G SI2 set in 24k white gold. GIA certified Add To Cart Added! 1.01ctw natural diamond center stone G SI2 set in 24k white gold. GIA certified