TomTop offers the Dodocool MFi Certified In-Ear Headphones in four colors (Space Grey pictured) for $69.99. Coupon code "TOP55G" cuts that to $52.99. With free shipping, that's the lowest total price we could find by $17. They feature a lightning connector, 24-bit audio, and in-line remote and mic.
Of note, this will ship from China, and will take two to four weeks to arrive.