Vintage Diamond Solitaire Engagement Ring in Two-Tone Gold

This is a classic vintage diamond engagement ring, likely dating from the mid-20th century (circa 1940s-1960s). The ring features a single round-cut diamond, appearing to be approximately 0.25 to 0.40 carats, though an exact weight would require professional measurement. The stone is set within a white metal illusion head, a popular design element of the era used to make the diamond appear larger and more brilliant. This head is characterized by four distinct double-prongs and a squared decorative frame. The shank of the ring is crafted from yellow gold, which transitions into the white metal setting, creating a two-tone aesthetic common in mid-century bridal jewelry. On the interior of the shank, a visible hallmark appears to read '14K,' indicating the gold purity. The band shows signs of light wear consistent with age, including minor surface scratches and a slight softening of the metal's high-polish finish. The diamond exhibits a clear transparency, though the lighting and focus of the image prevent a definitive assessment of color and clarity. The craftsmanship is typical of high-quality mass-produced jewelry from this period, prioritizing durability and a balanced visual profile. There are no immediate signs of structural repair or significant damage to the prongs holding the center stone.