They are for pierced ears and have a butterfly fastener. They are fully hallmarked on the posts: maker's mark PAH, 375 for 9ct gold and sideways anchor for the Birmingham Assay Office. Each earring measures 7 mm across the width of the flower cluster, and 13 mm deep (front to back of post); they are in very good used condition, although several of the rubies show slight chips under magnification. Really beautiful, and the perfect Valentine's gift! The item "Adorable Vintage 9ct Gold Ruby + Diamond Flower Cluster stud Earrings Hallmarked" is in sale since Sunday, January 10, 2021.This item is in the category "Jewellery & Watches\Vintage & Antique Jewellery\Vintage Fine Jewellery\1980s". The seller is "moondraco" and is located in Gravesend , Kent. This item can be shipped worldwide.