This striking antique 10K yellow gold crescent brooch, dating back to the 1900s, showcases a captivating combination of vibrant turquoise and Old Mine cut diamonds, creating a colorful and timeless design. The diamonds, totaling 0.42 carats with GH color and I1–I2 clarity, add a touch of vintage sparkle, though some stones exhibit minor chipping consistent with age. Measuring 1-1/4" wide by 1-1/4" tall, this brooch embodies early 20th-century craftsmanship and is offered as-is, reflecting its antique character.