SYNTHIA -3CT MARQUISE CUT DIAMOND RING BY MIKE NEKTA CERTIFIED Center Diamond:Carat Weight: 3 CaratsColor: KClarity: SI1Style: MARQUISE BRILLIANTApproximate Measurements: mm Ring:Metal: PLATINUM & 18K WHITE GOLD Style: PINK HALO DIAMOND SIDESTONE RINGDiamonds: 1.20 CaratsSize: Can be adjusted to any size.