Jewellery invoicing and customer ledger — multi-business, purity-aware billing that produces a shareable invoice in seconds.

Client
Sonaro
Sonaro is an invoicing and ledger system for jewellers, built so a shop owner can run daily billing without a complicated back-office system.
It supports multiple businesses under one account, each kept separate. The invoice engine auto-calculates weight, purity, diamond and labour charges and renders the result through a choice of professional templates. A customer ledger tracks balance, payments and full transaction history per customer, while product management holds the detail the trade actually works in — net and gross weight, diamond weight and purity. Finished invoices export to PDF and share straight to WhatsApp or print.
The hard part is that jewellery billing is not general-purpose invoicing: the maths carries purity, wastage and labour together, and the output is a document a customer will hold onto. Accuracy and presentation both had to be right, with each business's data kept private and separated.
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