What’s trending and who’s advertising in the December issuesMarie ClairePushing: • Colored diamond and sapphire, amethyst, citrine, and garnet ring; rainbow sapphire drop earrings (“True Colors: For the playful personality”)• Geode and opal earrings; blue topaz and gold ring (“For the island hopper: brilliant blues…and jeweled accents that sparkle like the Mediterranean Sea”)Advertisers:Bulgari, Chanel, Rado, Swarovski, Seiko, Hearts On Fire, Baume & Mercier, Zales, Alor, Pandora, Simon G., TacoriEllePushing:• Blue moonstone and diamond ­earrings; crystal and moonstone and amulet (“Space Odyssey”)• Rose gold and diamond baguette earrings; gold choker with pyrite pendant (“Gold Standard”)Advertisers:David Yurman, Omega, Bulgari, Chanel, Cartier, Rolex, Swarovski, Audemars Piguet, Piaget, Movado, Dior, Fendi, Phillip Gavriel, De Beers, Chopard, Robert