Sienna Miller and Oli Green Get Engaged Following Baby Arrival

WHO:

ComingSoon.net - Sienna Miller, actress; Oli Green, actor and model; their second child.

US Magazine - Sienna Miller, 44 years old; Oli Green.

WHAT:

ComingSoon.net - Sienna Miller is reportedly engaged to Oli Green.

US Magazine - Miller sparked engagement rumors by wearing a diamond ring on her left hand.

WHERE:

US Magazine - The engagement ring was spotted in Spain.

WHEN:

US Magazine - The diamond ring was seen on Thursday, June 4.

HOW:

US Magazine - E! News confirmed that the jewelry is an engagement ring.

(UPDATED June 10, 2026 10:19 UTC)

Sienna Miller is reportedly engaged to Oli Green, and the couple has welcomed their second child together. Engagement rumors began when Miller was spotted wearing a diamond ring on her left hand while in Spain, and E! News has confirmed that the jewelry is indeed an engagement ring. The ring was first seen on Thursday, June 4, sparking excitement among fans.