2.02 Paraiba Tourmaline Three Stone Engagement Ring 14kThis engagement ring features a GIA certified 2. 02 carat oval cut Paraiba tourmaline with . 78 carats of diamond accents in 14 karat yellow gold. The center tourmaline displays the rare electric blue green color that defines Paraiba gems. Two Cadillac cut diamonds, each weighing . 39 carats, flank the center stone in a three stone design. The diamonds are near colorless with a stepped trapezoid shape that complements the oval tourmaline. Claw prongs