Shop › Cognac Rose Cut diamond Halo Ring Image 1 of 3 Image 2 of 3 Image 3 of 3 Cognac Rose Cut diamond Halo Ring €1,950.00 Gorgeous 1.12 ct cognac diamond with eight 1.4 mm cognac diamonds set in a halo. Completely handmade 18 ct gold ring. Add To Cart Added! Gorgeous 1.12 ct cognac diamond with eight 1.4 mm cognac diamonds set in a halo. Completely handmade 18 ct gold ring.