Diamond & jewelry software for traders, manufacturers and those who do bothZero leakage. Zero shrinkage. Total control.
Whether you trade stones, manufacture diamonds or jewellery, or make and sell your own pieces, E-Ratna runs it in one secure cloud ERP: stock and memo, rough Kapan yield, karigar gold loss, sales and accounts, with live RapNet and GIA data built in.
- 4C + 100 specsSingle stone & parcel
- Live API syncRapNet, VDB, GIA, IGI, HRD
- Karigar & TunchMelting loss & assay
- Multi-currencyUSD, AED, HKD, THB







What is
E-Ratna is a cloud ERP for diamond and jewellery businesses. It runs buying, selling and memo, diamond and jewellery inventory, rough and jewellery manufacturing, and multi-currency accounting in one system, so traders and manufacturers can see every stone, gram and payment in one place.
- Made by
- S N Digital Solns Pvt Ltd, Navi Mumbai, India
- Built for
- Diamond and jewellery traders, manufacturers, and businesses that manufacture and sell
- Editions
- Diamond ERP and Jewellery ERP, each as Trading or Trading + Manufacturing, for one or several companies
- Licence
- One-time licence from US$5,000 (excluding taxes), not a subscription
- Currencies
- USD, AED, HKD, THB and INR in one double-entry ledger
- Integrations
- RapNet, VDB, GIA, IGI and HRD
- Serves
- Dubai, Hong Kong, Bangkok, New York and India
- Deployment
- Private cloud, with role-based access and IP whitelisting
For traders, for manufacturers,
E-Ratna is not only a trading tool. It runs the factory floor too, so a business that makes and sells keeps production and sales in one system. Find yourself below.
You buy and sell diamonds or jewellery
Diamond dealers, parcel traders, memo desks, bullion and jewellery wholesalers, exporters and importers.
- Purchase, sales and memo with aging alerts
- Rapaport pricing and certificate sync
- Multi-currency books for every office
- Trade show tally and WhatsApp catalogues
You make diamonds or jewellery
Rough cutting and polishing units, jewellery factories, casting houses and karigar workshops, including jobwork for others.
- Rough to polish with Kapan yield and loss
- Karigar job bags, Tunch and melting loss
- Casting, setting, polishing and finishing jobs
- Labour cost by process and BOM make and break
You manufacture and sell what you make
Houses with their own factory that also sell wholesale, export to buyers, supply retailers or run their own stores.
- One stock from raw gold and rough to finished piece
- Real cost of every piece, so every sale shows true margin
- Production and sales offices on one ledger
- Sell from stock, on memo or made to order
One ledger for you run
Stones are cut in India, traded in Dubai and Hong Kong, set in Bangkok and sold in New York. E-Ratna keeps the same stone, the same gram and the same price in one record across every office and currency.
DMCC diamond trading, Gold Souk wholesale and re-export to the Gulf and Africa.
Memo desks, parcel trading and the September and March jewellery fairs.
Wholesale memo on 47th Street, certified solitaires and retailer consignment.
Fine jewellery manufacturing, coloured stones and export production.
Where diamond and jewellery businesses
These are the leaks traders and manufacturers tell us about in every demo. Each one has a fix inside E-Ratna.
Built around how the trade
Each desk is a full module. Switch on the ones you need and they share one stock, one set of accounts and one audit trail.
Stop losing carats and margin in consignment transit
- Memo in and out with aging alerts and partial returns
- Instant Rapaport back-discount on bulk grids
- Brokerage slabs with withholding tax
- Export invoices with Brinks and Malca-Amit tare weights
Zero-shrinkage accountability from CAD job bag to finished piece
- Digital job bags with metal purity, stones and labour
- Tunch assay logs before and after melting
- BOM make and break to reclaim gold and certified stones
- Auto labour vouchers for setting, CAD and hallmarking
Maximise polished carat recovery on every rough parcel
- Issue rough to polishers and track carats in and out
- Real-time Kapan profitability and yield %
- Recut and repair desk for weight recovery
- Lab fees and certificates for GIA, IGI and HRD
Audit a booth in minutes and close deals on WhatsApp
- Barcode tally flags missing, matched and conflicting stock
- One-click PDF linesheets and WhatsApp catalogues
- FTP and API feeds to global B2B exchanges
42 modules across
Everything below is part of E-Ratna. Diamond ERP and Jewellery ERP editions switch on the modules your trade needs.
Trading
- Purchase management
- Sales management
- Consignment in & out (memo)
- Memo aging alerts & partial returns
- Import & export documentation
- Brokerage & commission slabs
Diamond inventory
- Single stone & parcel stock
- 4C + 100 parameter search
- Natural, CVD & HPHT books
- GIA, IGI, HRD certificate sync
- RapNet pricing & VDB feeds
- Lot mixing & stone transformation
Diamond manufacturing
- Rough to polish process
- Kapan yield & profitability
- Process & worker loss tracking
- Recut & repair desk
- Lab fees & submissions
Jewellery manufacturing
- Jobwork & outsourced production
- Casting, setting, polishing, finishing
- Karigar job bags
- Tunch assay & melting loss
- BOM make & break
- Labour cost by process or job
Sales & distribution
- Trade show barcode tally
- PDF linesheets
- WhatsApp catalogues
- FTP & API feeds to B2B exchanges
Accounting & finance
- Journal, payment, receipt & contra
- Multi-currency ledger & FX
- GST invoicing & e-invoice (India)
- Bank: SWIFT, IBAN, RTGS
- Debtor & creditor aging
- Trial balance, P&L, balance sheet
Reports & analytics
- Real-time financial dashboards
- Business & margin reports
- Stock, jobwork & production reports
- Custom Excel export profiles
Administration
- Multi-company & multi-branch
- Multi-user with role-based access
- IP address whitelisting
- Password approval to edit past entries
- 100% customisable screens & reports
Search 100+ parameters across stock
Separate books for natural, CVD and HPHT stones. Every certificate validated live against the lab.
The pricing engine behind
Try the same calculation E-Ratna runs on every transaction. Change any field.
Pay once.
E-Ratna is a one-time license, not a monthly subscription. Choose your edition, add manufacturing if you produce, and see the price in your own currency.
For diamond traders, dealers and cutters
For jewellery manufacturers and wholesalers
What buyers ask us
Moving your stock and accounts to a new system is a big decision. Here are straight answers to the questions we hear most.
You're based in India. Can you support us in Dubai, Hong Kong, Bangkok or New York?
Yes. E-Ratna is built and supported from India, and demo slots run in the morning for Dubai and Hong Kong and in the evening for New York. You talk to the same team that builds the product.
Can you move our data from spreadsheets or our current software?
Yes. We import your stock, parties and opening balances as part of onboarding, and we check the numbers with you before you go live.
Where is our data, and who can see it?
E-Ratna runs as a private cloud deployment. You can restrict access to your office IP addresses, set role-based permissions, and require a password to edit or delete past entries.
Does it work with RapNet, VDB and the grading labs?
Yes. RapNet pricing, VDB feeds and certificate sync with GIA, IGI and HRD are built in, not add-ons.
We trade natural and lab-grown stones. Can we keep them apart?
Yes. Natural, CVD and HPHT stock are kept in separate books, so they are never mixed in pricing or reports.
Is it a subscription?
No. E-Ratna is a one-time license. See the pricing section above in your own currency; the price depends on the edition, whether you add manufacturing, and whether you run one company or several.
Can it be changed to fit how we work?
Yes. E-Ratna is fully customisable: processes, reports and screens are adapted to your workflow during onboarding.
See E-Ratna run stock, memos and factory floor
30 minutes on Google Meet with a solutions specialist. We map your trading, manufacturing and rough processing workflow and show the exact screens you would use. Times shown in your own time zone.