18K gold ring with a cushion-shaped tourmaline, designed as a bold yellow gold gemstone ring with a substantial band, polished shoulders, and a prominent central stone setting. The ring is set with a 2.49 ct tourmaline displaying a deep green to green-black appearance, with a faceted surface that reflects lighter green tones under direct light. The gemstone has a rounded cushion outline and is mounted low into the front of the ring, creating a compact yet striking design with strong vintage, signet-style, and statement-ring character. The ring has a total weight of 6.6 g and an inner diameter of 19 mm. Based on the inner diameter, the approximate inner circumference is 59.69 mm, calculated as 19 × π = 59.69 mm. This corresponds approximately to EU ring size 60, depending on exact fit, ring width, and sizing system. The broader band profile may feel slightly tighter than a narrow ring of the same measured diameter, which is useful information for buyers comparing vintage gold rings, wide band rings, and gemstone signet rings. The design presents a strong contrast between the warm yellow gold and the dark green tourmaline. The gold band is wide at the front and gradually shaped around the central stone, giving the ring a solid, architectural appearance. The shoulders are polished and faceted, catching light from different angles and adding visual structure to the ring. The central tourmaline sits within a smooth bezel-style gold frame, making the gemstone appear integrated into the ring rather than raised above it. This gives the piece a sturdy and refined look suitable for everyday wear, formal use, collector display, or resale inventory. The 2.49 ct tourmaline is the focal point of the ring, with a dark green tone that gives the piece a classic and understated appearance. Green tourmaline is appreciated for its depth of color, natural variation, and suitability for fine jewelry. In this ring, the darker gemstone tone gives the piece a more masculine, vintage, and signet-inspired expression, while still remaining suitable as a unisex gemstone ring. The cushion-shaped cut gives the stone a softer outline than a square or rectangular cut, balancing the heavy gold setting with a more rounded and elegant gemstone profile. This ring is especially relevant for buyers searching for an 18K gold tourmaline ring, yellow gold tourmaline ring, green tourmaline ring, dark green gemstone ring, vintage gemstone ring, men’s gold gemstone ring, unisex gold ring, cushion cut tourmaline ring, signet-style gemstone ring, wide band gold ring, estate jewelry ring, statement gold ring, cocktail ring with tourmaline, natural tourmaline jewelry, and solid gold ring with green stone. The combination of substantial gold weight, dark green tourmaline, and classic ring construction makes it suitable for collectors of colored gemstone jewelry, vintage gold jewelry, and bold fine jewelry pieces. The ring’s total weight of 6.6 g gives it a noticeable presence without appearing overly large. The 19 mm inner diameter and approximately 59.69 mm inner circumference make it a practical size for many wearers, while the broad front and polished gold surface give the ring a visually strong profile. The gemstone setting is compact and integrated, making the piece suitable for those who prefer a lower-profile gemstone ring compared with high-set cocktail rings. The ring can be described as a vintage-style gold ring, tourmaline signet ring, dark green tourmaline ring, gold statement ring, and natural gemstone ring. A distinctive 18K gold and tourmaline ring with a 2.49 ct cushion-shaped dark green tourmaline, total weight 6.6 g, inner diameter 19 mm, and approximate inner circumference 59.69 mm. A suitable piece for fine jewelry collectors, gemstone enthusiasts, gold buyers, dealers, vintage jewelry collectors, and buyers looking for a substantial natural gemstone ring with strong character. Search keyphrases for this item include 18K gold tourmaline ring, 2.49 ct tourmaline ring, green tourmaline gold ring, dark green tourmaline ring, cushion tourmaline ring, cushion cut green tourmaline, yellow gold gemstone ring, vintage gold tourmaline ring, men’s tourmaline ring, unisex tourmaline ring, signet style gemstone ring, wide gold band ring, estate gold ring, solid gold gemstone ring, natural tourmaline ring, gold ring with green stone, gold ring with dark green gemstone, polished yellow gold ring, statement gemstone ring, cocktail gemstone ring, collectible gold ring, hallmarked gold ring, 6.6 gram gold ring, 19 mm ring diameter, 59.69 mm ring circumference, EU size 60 ring, and fine jewelry with natural tourmaline.