This Art Nouveau necklace by Marcus & Co., c. 1900, just sold for $25,000 at Christie’s NY. Notice how the enameling picks up the vivid blues and greens of those gorgeous opals. Other Art Nouveau is not selling today, but Marcus & Co. has become quite collectible. For more on this NYC house (sold to Gimbels in 1941), see my profile: http://thejewelryloupe.com/spotlight-new-york-jewelry-house-marcus-co/ | The Jewelry Loupe

Another fabulous Art Nouveau jewel by René Lalique, c. 1900, a dog collar plaque of blue molded glass and enamel with old, rose-cut diamonds in 18k gold. Sold at Christie’s #magnificentjewels sale for $250,000. | The Jewelry Loupe