I think the finish on the dice stick you have is called "sand finish" rather than polished.

I have seen both types at Gambler's General Store in LV. When I looked at their website though, the picture links are broken, so I don't know if they quit selling dice, or just a website problem. Here:
https://www.gamblersgeneralstore.com/dice/casino-quality-dice

I did find another website that sells both polished & sand-finished dice. Here:
https://casino4you.com/product/sand-finish-casino-dice-19mm