- Invisible Set Sapphire Heart Pendant with Round Diamond Accents set in 18KT White Gold 5.65 ct C00447PS1S8W-IAJLD$1,795.00Call for availabilityInvisible Set Sapphire Heart Pendant with Round Diamond Accents set in 18KT White Gold 3.90 ct C00171PS1S8W-IAJLD$1,495.00Call for availability