Sapphire and Diamond Halo Engagement RingThis ring perfectly marries modern and sophisticated elegance. The sapphire is surrounded by pave set diamonds to create a sparkling halo in 14kw or 14ky gold. For an added special touch, there are tiny diamonds leading up from the band to the head of the ring on the prongs. Details: 14kw, 14ky or 14kr gold; platinum; palladium Diamonds: . 21 tcw. The price quoted does not include the center stone, which can fit a 4. 5ct cushion gemstone or diamond.