Opal Index
QR code labels for gemstones that open the right record.
Download PNG labels or print to a Phomemo M220. Stick once — scan forever. Prices stay off the tag.
Print your first labelIn the app
See it on the phone.

Why it fits
Three reasons to switch.
- Standard 40×30 mm labels plus compact mini labels for small capsules
- Capsule sheets and bucket labels for stands and trays
- Permanent domain on the QR so stickers keep working
FAQ
Common questions
What size are the labels?
Default is 40×30 mm (Phomemo M220 friendly). You can adjust width and height in Settings. Mini labels prioritise a large scannable QR.
Do labels show prices?
No. Labels encode a private tag URL. Public customer pages are optional PRO and never show prices or payment proofs.
How many copies can I print?
Free allows up to 2 copies per print (e.g. capsule + bag). PRO allows up to 20.