<human>: My fiance (21M) and I (20F) have been engaged for over a year now. We're both very young and in college, so we're not really looking to get married any time soon, but we're very sure about each other. Originally, we had planned to get the ring and do all the wedding planning after college because we'd be able to afford much better things then. However, lately my fiance has been itching to get a ring on my finger. We just started shopping for rings and I'm very lost with all this. We think we want a tanzanite ring (rather than primarily diamond) because the stone has a symbolic meaning to us, and I'm not comfortable with the diamond industry. Apart from having an idea of what looks pretty to us, I have no idea what to consider when buying a ring. We went to a couple jewelers and we found a ring we really like. It has a indigo colored oval tanzanite set between baguette and round diamond accents on a white gold band. At $3k USD, it doesn't seem particularly pricey for an engagement ring (I think?). I think if we wait to buy a ring until after getting settled post-graduation, we'd probably buy a more expensive one. (Is it a bad thing to buy a cheaper engagement ring?) However, we like this ring and we can afford to get it now and he's considering buying it now. Is it a good idea to go ahead and buy it, or should we shop around in case there's something better? Are tanzanite and white gold durable enough for an active lifestyle? What are some things that we should consider when ring shopping? (I know about the 5 Cs of diamond shopping, but does that even apply here?) Any advice would be appreciated.

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<bot>: My fiance and I are very young and need advice about buying a non-diamond (tanzanite) engagement ring.