Embark on a journey through ancient South American culture with this Sinu Tumbaga gold nose ring. With a striking figure form indicative of the Sinu or Quimbaya cultures from Colombia, this 3rd to 6th Century CE nose ornament radiates with history. Measuring 45mm in diameter and weighing 5.206 grams, its condition is excellent, and its rarity is remarkable. Acquired from a Dutch gallery in 2008, this piece is a collector's dream, substantiated by precise XRF test results. The Sinu Tumbaga gold nose ring represents an exceptional artifact from the Pre-Columbian period, a testament to the metallurgical excellence of the Sinu cultures known to inhabit modern-day Colombia. The term 'Tumbaga' refers to a gold-copper alloy that was preferred for its versatility and vibrant sheen, allowing artisans to create objects of both ceremonial and decorative value. This nose ring, with its figure form, is a classic example of the cultural significance that such ornaments held. Jewelry in Pre-Columbian cultures often denoted status, spiritual beliefs, and were even thought to carry protective properties. The size and quality of this piece suggest it was likely worn by someone of considerable importance within their community. XRF testing, which provides the elemental composition of the piece, indicates a blend of 53.3% copper (Cu), 40.5% gold (Au), 5.1% silver (Ag), and 0.7% germanium (Ge). This composition is consistent with Tumbaga artifacts of the region and era, reinforcing its authenticity. The presence of germanium, albeit in small amounts, is particularly interesting as it is less common in Pre-Columbian metallurgy and could suggest a unique origin or specific workshop. XRF ANALYSIS REPORT: This Sinu Tumbaga Gold Nose Ring, originating from the 3rd to 6th Century CE, is an exquisite example of pre-Columbian metallurgy. The XRF results show an intriguing composition of 40.5% gold (Au), 53.3% copper (Cu), 5.1% silver (Ag), and 0.7% germanium (Ge). Tumbaga, a gold-copper alloy, was commonly used in pre-Columbian America, prized for its unique coloration and ease of crafting. The higher copper content, unusual in comparison to European goldworks, imparts a distinctive reddish hue and signifies the cultural uniqueness of the piece. The addition of silver and germanium adds complexity and rarity to this artifact. With a gold content around 10 karats, this nose ring is a rare, culturally significant item reflecting the advanced metallurgical skills of the Sinu civilization.