14k Yellow Gold Mexican Cantera Opal Bezel-Set Ring

This is a substantial 14k yellow gold statement ring featuring a large, round Mexican Cantera opal approximately 12-13mm in diameter. The opal is a distinctive 'Cantera' variety, meaning the precious opal is still embedded within its natural reddish-brown rhyolite host rock matrix. The gemstone displays a vibrant play-of-color, specifically showing intense electric blue and neon green flashes against the earthy, speckled background of the matrix. The stone is secured in a thick bezel setting, which is further embellished by a dual-row decorative border; the inner border is a polished gold rim, while the outer border features a classic rope-twist or cable texture. The ring's shoulders exhibit a split-shank or multi-ribbed architectural design that tapers toward the back. Based on the provided context, the piece weighs 5.5 grams and is hallmarked '14k'. Purchased in Mexico, the style and craftsmanship suggest a late 20th-century production. The condition appears good with no significant cracks to the matrix visible in the photo, and the gold maintains a bright luster with minor surface abrasions consistent with gentle wear. The high-domed cabochon cut maximizes the visibility of the opal's fire within the stone.