Rolo chains are available in all standard gold karats: 10K (41.7% pure gold, most durable, most affordable), 14K (58.3% pure gold, the US standard, optimal balance of quality and durability), and 18K (75% pure gold, richest color and feel, preferred in European fine jewelry). 14K yellow gold is the most widely sold rolo chain karat in the US market, representing the standard for fine gold chain jewelry in American retail.
Karat-to-color relationship in rolo chains: 10K yellow gold rolo chains have a slightly paler, less warm yellow tone than 14K equivalents due to lower gold content in the alloy; 14K yellow gold has the classic warm yellow associated with American fine jewelry; 18K yellow gold has a distinctly deeper, richer yellow tone due to higher gold content. The rolo chain's circular link surface area shows this color difference clearly when chains of different karats are compared side by side.
Sterling silver rolo chains are also widely available at significantly lower prices. The rolo construction translates well to silver, and silver rolo chains are popular as fashion jewelry. However, silver tarnishes over time (requiring regular polishing), lacks gold's intrinsic precious metal value, and is not the same product as a gold rolo chain. When purchasing a gold rolo chain, verify the karat hallmark ('14K', '585', '10K', or '18K') rather than relying on color appearance alone.