<human>: So I(m20) want to propose to my SO(f23) of 4years but I'm not sure how to go about it. We've talked of getting married and she mentioned not wanting the traditional diamond, and her love for gemstones so I've been on the lookout for the "perfect " one and recently made a spontaneous buy. When I talked to my family about it my mom gave me her grandmother's old traditional ring and wants it to stay in the family. is it okay to have to engagement rings? How could they be worn and how to I go about proposing? 

I'm really unsure how to go about this and hope an outside prospective can help me out. 

Sorry if my wording is bad

Can you give me the gist of the text in a nutshell?
<bot>: harlume ring from great great grandmother along with gemstone ring I bought can she wear both as engagement rings? How should I go about presenting / propose?