Royal Princess-cut Invisible Setting Diamond Pendant, Paved with Round-cut Diamonds, 18K White Gold.
It comes with 14K White Gold Swirl Italy Chain, 16 Inches Long with Lobster Claw Lock.

Total Diamond Weight: 3.20 Ct,
Clarity: H-SI1.
Item Weight: 6.4 g.
Pendant Width: 12 mm
Pendant Height: 30 mm.