I do not own any LV fine jewelry but I do not doubt the craftsmanship of LV fine jewelry. Even though they are not a jewelry house, I'm sure their pieces are of great quality. Of the reviews I see online, I have not seen any big issues or consistent complaints.
Having said that, however, when I compare the prices of LV fine jewelry to a fine jewelry house, like Bvlgari or Cartier, I personally think they are overpricing their items.
I understand that luxury jewelry houses already overprice their jewelry but LV feels like it goes over that
.
It's a bit hard to compare since they are different designs and (I don't know the gold difference by weight) but there are similar pieces.
For example, the LV empreinte ring in YG is $2000 USD while the Cartier Love ring in YG is $1820 USD. Not that much more I guess but there's also tax too.
The LV volt YG wedding band, is $1800 while the Cartier Love YG wedding band is $1170. And both of those are thinner/smaller bands, but now there's a more significant price difference.
Considering those prices, I personally would rather buy from a jewelry house than a fashion house for fine jewelry.
For any fine jewelry (unless it's high jewelry or part of a special collection) I would NOT consider how much I want an item based resale value. Nothing used will hold up as well as we like. If there are any scratches or sign of wear, you can bet a classic piece will drop 10-15%. Especially with many of the popular pieces being on the resale market, the higher supply is not going to help with the resale value. It's probably better to buy something you know you'll love for a lifetime (or at least a very long time).
Regarding diamonds, especially tiny diamonds, like pave diamonds, which do not have any GIA certification, I would not think that LV diamonds are that much better than your local jewelry store or any fashion house/luxury jewelry house. Of course, the quality will not be bad, they are cut well are sparkle beautifully but it's not that significantly better, especially with the naked eye, IMO. Take a look at David Yurman pave diamonds or small set diamonds, also beautiful, but much more affordable. There's not much difference to me when I look at them.
Also, keep in mind, pave diamond pieces for luxury brands, like Cartier, depreciate in value greatly on the resale market.
https://forum.purseblog.com/threads/sell-or-keep-cartier-pave-love-ring.1047018/
When you get to bigger diamonds, of course, that's a different story.
But, LV definitely has its own iconic style and look. And if that's what speaks to you, then it's worth it to you.