THINKING WOMAN: Besides being prime romantic gifts from a man to a woman, jewelry and lingerie have had little in common — until now. Meredith Kahn, who has a five-year-old fine jewelry brand named Made Her Think, has partnered with intimates retailer Kiki de Montparnasse to create a capsule jewelry line. The collection includes a double band chain ring, a similar bracelet and a pyramid totem pendant necklace. Kahn’s jewelry starts at $495 for the ring in silver and climbs to $18,000 for the pendant in pavé diamonds. “I’m such a crazy, die-hard romantic. I design the pieces as though someone’s going to fall in love with that and their lover will buy it for them,” said Kahn, who got her start in the fashion industry designing denim at Old Navy. The collaboration will be celebrated tonight with a party hosted by Byrdie Bell at de Montparnasse’s Greene Street store in SoHo.