Article continues below advertisementMartha Stewart is downright "iconic!"The 84-year-old homemaker posted an up-close selfie on January 13, showcasing her smooth, wrinkle-free skin.Article continues below advertisement'Marvelous'Source: @marthastewart48/InstagramMartha Stewart showed off her glowing, wrinkle-free skin in a close-up selfie.She posed with her lips pursed and her bangs tousled across her face.Her hair was pulled back, highlighting a stunning pair of yellow diamond dangling earrings.Martha's fresh-faced look was completed with curled lashes coated in mascara.