Jeweler Tiffany & Co. pushed its ‘20s-inspired jewelry lines through advertisements on The New York Times’ desktop and mobile sites on the day that Baz Luhrmann’ “The Great Gatsby” hit theaters.

Today in luxury marketing – Tiffany vs. Costco: Which diamond ring is better?; Barneys CEO Lee takes anti-Penney approach to turnaround; Neiman Marcus explores options; LVMH appoints new TAG Heuer CEO.

Jeweler Tiffany & Co. transformed its New York flagship store to show off its collaboration with the 2013 film adaptation of F. Scott Fitzgerald’s “The Great Gatsby.”

Jeweler Tiffany & Co. is revealing pieces from its 2013 Blue Book Collection exclusively to its Facebook community in a daily campaign.

Today in luxury marketing – Tiffany & Co. taps Marc Jacheet; Zac Posen’s 24k gold dress is inspired by melting ice cream; Bentley’s SUV plans slow to a crawl; Porsche to offer plug-in, long-wheelbase for new Panamera.

Today in luxury marketing – Tiffany profit tops estimates led by demand in Asia; Ferragamo profits up 30pc; Slow trading forces new Mulberry warning; The world’s most expensive cities for luxury real estate.

Tiffany & Co.’s trademark infringement suit against Costco Wholesale Corp. and the wholesaler’s counterclaims could result in deeming “tiffany” a generic diamond setting and create challenges for the brand.

Today in luxury marketing – Hermès says it is not interested in buying British rival Mulberry; Harry Winston, Tiffany & Co. plan Japan price increases; Swatch lawyer flags Weko agreement over watch movements; Luxury real estate prices are soaring in Indonesia.

Jeweler Tiffany & Co. is pushing gifts and engagement rings in a multichannel campaign to catch consumers who are making purchasing decisions for Valentine’s Day.

Today in luxury marketing – Gucci goes manga with Hirohiko Araki; Tiffany and Elsa Peretti extend partnership for 20 years; Ferragamo ups stake in Chinese distribution JVs; U.S. carmakers try to reclaim luxury market.