This Art Deco-era solitaire engagement ring features a .28 carat Old European cut diamond set in a square head. The diamond, graded SI1 for clarity and J for color, draws attention with its classic sparkle. The two-tone design combines 14 karat white and yellow gold, with the yellow gold band showcasing intricate engraving and milgrain details for added texture. The ring’s filigree mounting adds a decorative, vintage element that highlights the style of the period.