4.05 Cushion Sapphire Engagement Ring 18k

This engagement ring is set in 18 karat white gold and centers a GIA-certified 4.05 carat cushion cut blue sapphire. The cushion cut gives the sapphire rounded corners and larger facets that emphasize its deep blue color while creating flashes of light across the stone's surface.

Two Cadillac-shaped diamonds measuring 6.50 x 3.25 mm flank the sapphire, weighing .27 carats each for a total diamond weight of .54 carats. The sapphire is held in a four-prong basket setting, and filigree work decorates the ring's gallery. The GIA certificate notes the sapphire has been heat-treated, which is standard industry practice to enhance color and clarity in these gemstones.

At just over four carats, this sapphire provides substantial presence on the hand while the white diamonds frame the center stone in bright contrast.