LONDON — With her jet-black hair, alabaster skin and pale green eyes, Susie Cave’s darkly drawn beauty has bewitched designers (Azzedine Alaïa and Yves Saint Laurent), and photographers (Helmut Newton, David Bailey and Steven Meisel) — not to mention her husband, the Australian rock star Nick Cave.

These days there are new people under Ms. Cave’s spell: fans of her fashion label, The Vampire’s Wife, a runaway success since its introduction in 2014.

“I originally started designing clothes for myself because I couldn’t find anything that I wanted to wear, especially for the evening,” Ms. Cave, 51, said last week. A former model, she was wearing one of her latest retro-glam creations: a silk velvet maxi dress with a high neckline, puffed shoulders and bell sleeves, and a hem that all but hit the floor. From one wrist hung an 18-karat gold bracelet she recently designed with the jeweler Annoushka Ducas, laden with charms inspired by Mr. Cave’s songs, including “Where the Wild Roses Grow”, “Mermaids” and “The Mercy Seat.”

Sitting in the cocoon of a velveteen armchair, Ms. Cave said she never thought her business — started from her home in the British seaside town of Brighton — would take off as it did. Her skirts and dresses are now beloved by glossy A-listers, and Ms. Cave has been getting ready to debut her first handbag designs. The jewelry collaboration will be unveiled at an installation in Dover Street Market next week.