No. Napier Jewelry is a line of vintage costume accessories. Most of their items are richly "gold and silver plated".
According to Collectors Weekly, the name Napier was not associated with costume jewelry until the 1920s. The company made Egyptian Revival necklaces, earrings, and other pieces during the 1920s (among other styles), excelling in metalwork accented by faux stones.
By the end of the 1930s, movie stars such as Sonja Henie and Lana Turner were wearing Napier. After World War II, Napier was known for its rose gold brooches and necklaces set off by clear and colored rhinestones, as well as its bold charms and bracelets.
Check out some of the Napier collections here.
Browse great deals in Fashion Jewelry at eBay - Napier.
Find tips on buying vintage costume jewelry at About.com.
Of interest, luxury jeweler Tiffany & Co. reported better-than-expected second quarter earnings results recently, beating the Wall Street forecast on both profit and revenue largely due to continued success in colored diamond sales as well as strong sales in the statement jewelry category. Read more at Forbes.