The ladies band is soldered to the engagement ring, but can be separated . I am not sure on the size of diamond, but I am thinking it is a 1/4 karat. The band has two small diamonds on it. Size 5. The man's band is a heavy construction band. Size 11 1/2. All yellow gold. I am pretty sure all three rings are 14 karat gold. I haven't had it on my finger for 12 years! We paid $800 for all three pieces at Helzberg Diamonds. They have all been recently cleaned. I am also throwing in the promise ring. It is also yellow gold, has three small diamond chips and is a size 3 1/4. I am sorry about the crummy pictures! It is hard to get pictures of rings that are shiny! Location: Harrisonville,MO it's NOT ok to contact this poster with services or other commercial interests kansas