A vibrant vintage 18K yellow gold oval pendant necklace, featuring striking double-sided enamel work in rich geometric patterns evocative of 1970s Italian design. One side displays a bold composition of sky blue, turquoise, white, and gold, while the reverse presents a warm palette of amber, chocolate brown, and white — both separated by polished gold contours in a stylized wave or cloud motif.

The pendant is suspended from an intricately patterned gold chain, complementing its retro artistry. The piece is stamped “750” for 18K gold and marked “AL”, indicating Italian origin from the province of Alessandria, a region renowned for its artisanal goldsmithing.

This pendant exemplifies the bold, sculptural, and colorful enamel work of the 1970s, reflecting the influence of Italian modernism and the era’s fascination with wearable art. Its reversible design makes it both playful and sophisticated — an exceptional statement piece that transitions effortlessly from day to evening wear.