I found two jewelry stores that accept BTC/Crypto payments.
Why don't you show them to us? Maybe one of the (old) users will want to buy some gold with bitcoins.
There are many jewelry stores that keep their gold prices relatively low (when selling), so gold sellers often don’t get the right price.
Who told you that? When you buy gold jewelry, you're paying for the piece itself, not the piece of metal, plus the added value (the seller's profit). I believe buying jewelry as an investment is a foolish idea because of the inflated price (as a product). It's better to simply buy gold as "scrap metal" in bars. But in some countries, taxes are baked into such purchases (and after the sale), making buying physical gold completely unprofitable.
If 💎 jewelry stores and sellers could sell gold using Bitcoin, this problem would be greatly reduced.
(If all jewelry stores used Bitcoin as a method of measurement)
But another problem would have arisen.
Compared to current prices, we see that
If the price bitcoin's was stable, because traditionally something stable was used as a measurement method.
👉 Bitcoin price: $62,000
🧈Gold price: $4,110 per troy ounce
👉 So, there are 15.023 ounces of gold in one BTC
And one ounce of gold is 6,500,000 satoshis, which is actually equal to 0.065 BTC ($4,110).
Why is there a third variable (dollar) in your equation?
It would be great if this system could be implemented globally.
If this made sense, it would have been implemented already.
In that case, if jewelry stores were to make gold ❒ cubes worth $100, $500, $1000 to attract customers, many would be interested!!
Why are you mentioning the dollar again?

These your cubes (or balls, sticks, or even stars) should be sold in the equivalent of satoshi, if we follow the logic of your post.