The British designer worked at Figue and Oscar de la Renta before starting her own company last year.
The socialite and her billionaire husband had originally sought $7.25 million for the Flatiron spread.
This is the designer’s first foray outside of handbags.
Avenue 32 was backed by Germany’s Benteler Group, which makes steel tubes, components and systems for the auto industry.
The luxury e-commerce site diversifies product offerings.
The retailer has teamed with Amazon again.
The fine-jewelry fair showcased more one-off pieces that justified the price tags, while others hedged bets with entry-level offerings.
An alum of New York jewelry designer Kara Ross, Winston is looking to bring her brand of whimsy to fine jewelry.
The site asks customers to wait for deliveries – and commit to their purchases.