A diamond balance is only worth what you can actually spend, and that depends entirely on which merchants near you have joined the redemption programme.
Participation is a merchant choice
No merchant is required to accept diamonds. Joining is opt-in, uncapped, and a merchant can leave at any time. That means acceptance is genuinely voluntary — and it also means the list changes.
Use the acceptance map
Knozii shows which merchants are currently accepting diamonds and where they are. Check it before planning a redemption rather than assuming a shop still participates because it did last month.
The map's usefulness depends on being live rather than a snapshot, which is why a stale list would be worse than none at all.
What you can redeem for
Goods at the participating merchant. What that covers is set by the merchant — some accept diamonds across their range, others on particular items. Ask before you shop rather than at the till.
There is no cash redemption anywhere in the programme, and no merchant can offer one.
Density matters more than distance
A neighbourhood with thirty participating shops is far more useful to you than a city with the same number spread thin. If acceptance near you is sparse, your balance is worth less in practice than the rate suggests — that is an honest limitation of a young programme rather than a detail to hide.
Right now, during launch
In the current launch period Knomart funds redemption discounts and refunds the merchant, so a shop can join without taking a financial risk. In the longer-term model merchants absorb redemption as a marketing cost. Which stage the programme is in is worth knowing, because it explains why joining is easier for merchants today than it may be later.
If nowhere near you accepts
Ask a shop you already use whether they would join. Merchants are more likely to consider it when an actual customer asks than when a programme is described to them in the abstract.