4.12 Tourmaline Engagement Ring in 14k Yellow Gold.  This breathtaking engagement ring features a 4.12 carat green tourmaline and .70 carats of natural diamonds in 14k yellow gold. The elongated, Emerald Cut tourmaline has bold, step facets that create a “hall of mirrors” for beautiful light play. Flanked on both sides of the primary stone, two .35 carat baguette cut diamonds decorate the shoulders of the band. From the profile, a structured open basket mounting leaves room to admire the elevated primary stone. The thick, 14k gold band is flat and polished, offering a strong support for the gems and a comfortable fit for everyday wear.