Miss Universe 2016 Iris Mittenaere was among his muses.
The 26-year-old former beauty queen looked like a princess in her custom-made crystal-embellished blush pink ball gown with feather details.
She attended the screening of Oh Mercy! (Roubaix, une Lumiere) at the Grand Theatre Lumiere.
ICYDK, Michael also designed Iris' farewell ball gown at the Miss Universe 2017 grand coronation night before relinquishing her crown to South Africa's Demi-Leigh Nel-Peters.
Meanwhile, Swedish-Thai actress Praya Lundberg donned a rose gold column gown to the De Grisogono party. Canadian beauty queen Marta Magdalena Stepien was spotted wearing the same design at the Miss Universe 2018 pageant in Thailand in December 2019.
The fully-embroidered black ball gown that Praya wore to Cannes last year was also Michael Cinco creation.
Danish-Thai model/actress Sririta "Rita" Jensen wore not one but two Michael Cinco gowns!
On May 16, she was clad in an ombré layered tulle gown at the screening of Rocketman.
The gown was part of Michael's Spring-Summer 2019-2020 collection.
On May 15, she attended the screening of Les Miserables wearing a coral tulle gown, which was also part of Michael's Spring-Summer 2019-2020 collection.
Bollywood star Kangana Ranaut also looked ethereal in her blush pink, fully-embellished column gown.
She graced the screening of Pain And Glory (Dolor Y Gloria/Douleur Et Gloire) on May 17 at the Grand Theatre Lumiere.