Gross margin recently hit a new high, and another strong result here would suggest Tiffany is having no problem asking for full price for its latest lineup of high-end jewelry products. (NYSE: GES) , Tiffany (NYSE: TIF) , and Palo Alto Networks (NYSE: PANW) moving in the trading week to come. It will also be interesting to see how well profit margins are holding up through the challenges of rising input costs due to international trade skirmishes and general inflation.