CaratOS
by ScalarThink
Modern jewellery software built for smart jewellers
Billing, inventory, GST, accounting, CRM, orders, job work, schemes and Girvi in one offline, secure system.
- Modules
- 16
- Editions
- 6
- Internet needed
- None
Why CaratOS
Built for how jewellers actually work
Everything a jewellery business runs on — counter, workshop, lending and accounts — in a single, dependable system.
Works fully offline
CaratOS runs on the computers in your shop. Billing, tagging and reports keep working without a connection.
Secure by design
Your stock, customer and Girvi records stay on your own machines, with built-in backup and restore.
GST and accounts built in
GST invoices and returns, registers and full accounting — no separate bookkeeping software.
One system, end to end
Retail, Girvi, orders, karigar job work, schemes and CRM share one set of data.

At the counter
Faster billing at the counter
Barcode tagging, billing and GST invoicing work together, so your staff spend their time with the customer — not with the software.
Editions
Choose the CaratOS that fits your shop
Six editions, one platform. Not sure which one you need? The CaratOS team will help you choose.
Starter
CaratOS Lite
The essentials for a smaller shop — billing, stock and GST, ready on day one.
Girvi
CaratOS Girvi
For businesses whose main work is lending against gold and silver — with the cash and bank accounting that comes with it.
Growing shops
CaratOS Lite Plus
Everything in Lite, with more room to grow as your counter gets busier.
Retail
CaratOS Standard
A complete retail system for showrooms that buy, make and sell jewellery.
Retail + Girvi
CaratOS Pro
For a showroom that also runs a Girvi book — both businesses on the same records.
Advanced
CaratOS Prime
The most complete CaratOS — the full depth of the system for larger retailers and wholesalers.
Modules
16 modules. One system.
From the first tag to the final GST return — every part of the business is covered.

- Dashboard
- Billing & Invoicing
- Inventory (Tagged & Batch)
- Barcode & Tagging
- Girvi & Pledge
- Orders
- Karigar & Job Work
- Accounting
- GST & Returns
- Reports & Registers
- CRM & Customers
- Old Metal & Refinery
- Purchase & Suppliers
- Scheme Management
- Custom Invoice Templates
- Backup & Restore
FAQ
Questions about CaratOS
Does CaratOS need the internet?
No. CaratOS is offline software — it runs on the computers in your shop, so billing and stock keep working without a connection.
Which edition is right for me?
CaratOS comes in six editions — Lite, Girvi, Lite Plus, Standard, Pro and Prime. Choose Girvi for pledge lending only, Pro if you run both retail and Girvi, Prime for the most complete system, and Lite through Standard as your retail business grows. The CaratOS team can help you choose during a demo.
Where do I book a demo or get support?
On the official CaratOS site, caratoserp.com — demos, pricing and product support are handled there.
See CaratOS on the official site
Demos, pricing and product support are handled on caratoserp.com — the home of CaratOS.