.56 GIA Heart Diamond Pendant Necklace 18k/Platinum

This pendant necklace features a GIA-certified .56 carat heart cut diamond in a collet setting with 18 karat yellow gold, platinum, and black rhodium finish. The diamond has SI1 clarity, meaning it appears mostly clean to the naked eye, and D color, which is the highest grade available—completely colorless with no tint whatsoever.

Heart cuts create a symmetrical heart shape with brilliant faceting that requires precise cutting to achieve balanced proportions and good light return. The collet setting places a rim of metal around the diamond while the black rhodium finish creates dramatic contrast against the colorless stone and warm gold.

The pendant hangs from a 14 karat yellow gold rolo chain measuring 18 inches with a lobster clasp. This piece appeals to those who want a distinctive diamond shape with top color grading and edgy two-tone metalwork.