Established in 1837, Tiffany & Co is renowned for fine jewelry, particularly engagement rings and the iconic Tiffany blue box. Founded by Charles Tiffany in New York City, the company gained fame in 1878 when Tiffany purchased a large yellow diamond, cutting it and naming it the Tiffany Diamond. Tiffany helped establish the luxury brand by marketing to wealthy clients and royalty. The company has expanded internationally with over 100 stores worldwide while maintaining a commitment to responsible and sustainable business practices in mining diamonds and protecting coral reefs.