Peruvian Tumi Knife

The tumi is a ceremonial knife with a distinctive semicircular blade and a handle topped with a figure, most famously used in ancient Andean cultures as a ritual tool for sacrifice, surgery, and religious ceremony. The most celebrated tumi is the golden Tumi of Illimo, a masterwork of the Lambayeque (Sicán) culture from approximately 900-1100 CE, showing a figure wearing an enormous ceremonial headdress atop the characteristic D-shaped blade. This object, and the tumi form generally, have become central symbols of Peruvian national identity, appearing on the country's national tourism insignia.

In Andean cultures including the Chimú, Lambayeque, Wari, and Inca, tumis were status objects of the highest order — made of gold, silver, copper, or gilded bronze, decorated with turquoise and shell, and used in the most important ritual contexts. Some tumis were designed for surgical use (evidence of successful skull surgery dates to pre-Inca Peru), while others were purely ceremonial. The semicircular blade form is found across a wide geographic area and time span, suggesting its ritual significance predates any single Andean culture.

As a contemporary charm, miniature tumi replicas in silver, gold-plated metal, or ceramic are sold throughout Peru as luck charms and are displayed in homes and businesses facing outward to bring good fortune. The tumi is understood as both a symbol of Peruvian cultural pride and as an active luck-bringer whose sharp edge symbolizes the decisive cutting through of obstacles.