This show-stopping ring by the renowned New York jewelers Marcus & Co. features an astounding 10-carat black opal. Shimmering with a kaleidoscope of cool greens and ocean blues, this black opal contains a magnificent spectrum of iridescent hues. Opals are among the most desirable gems in the world, and black opals are known to display the most brilliant colors of all. The center gemstone is accented by diamonds and set in classic platinum.
