Jewellery Shop ERP & Billing Software – Cloud-Based Multi-Shop System

I need a cloud-based Jewellery Shop ERP, Billing, Accounting and Inventory Management Software similar in functionality to traditional jewellery ERP/accounting software such as the one currently used by jewellery shops. The system should be specifically designed for Gold and Silver jewellery businesses. CORE MODULES: 1. Jewellery Billing / POS - Create professional jewellery invoices - Customer name, mobile number and details - Invoice number and date - Item/particular name - Gross weight - Less/Deduction - Net weight - Gold/Silver selection - Purity/quality - Current metal rate - Making/Labour charges - Automatic amount calculation - Discount - Total bill amount - Cash received - Previous balance and final due amount - Print/download PDF invoice - Send invoice directly through WhatsApp 2. Sales - Retail sales - Customer-wise sales history - Gold/Silver sales - Returns and adjustments - Automatic stock and account updates 3. Purchase - Supplier/vendor management - Purchase invoices - Gold/Silver purchase - Item-wise weight and rate - Making/labour charges - Purchase returns - Automatic inventory update 4. Jewellery Inventory - Gold and silver stock - Item-wise stock - Weight-based inventory - Purity-wise stock - Opening/closing stock - Stock adjustments - Stock transfer - Stock reports 5. Customer & Supplier Accounts - Customer ledger - Supplier ledger - Credit/debit transactions - Previous balance - Payment received - Outstanding/Due amount - Complete transaction history 6. Accounting - Cash book - Expenses/Kharcha - Income - Receivables/payables - Daily transactions - Profit/loss reports - Day closing/final closing - Account statements 7. Girvi / Pledge Module - Customer pledge/girvi records - Jewellery details - Weight and valuation - Loan/amount given - Interest/charges - Due date - Payment/settlement - Complete pledge history 8. Reports - Daily sales - Purchase report - Stock report - Gold/Silver weight report - Customer outstanding - Supplier outstanding - Expense report - Profit/loss - Cash report - Day closing - Transaction history - Export to PDF/Excel/CSV 9. Multi-Shop / Multi-Business - One admin can manage multiple jewellery shops/branches - Separate data for each business/shop - Staff accounts with different permissions - Owner/Admin/Manager/Cashier roles - Each shop should only access its authorized data 10. Cloud-Based System - Access from computer, laptop, tablet and mobile browser - Automatic cloud backup - Secure login - Database backup and recovery - Audit/activity logs - Scalable architecture so many shops can use the system simultaneously 11. Admin/SaaS Panel - Create and manage jewellery businesses - Create shops/branches - Manage users and permissions - Subscription management - Business-wise data isolation - Usage monitoring 12. Modern UI The interface should be simple enough for a jewellery shop employee who is not technically experienced. It should be fast, clean and professional, while keeping the familiar workflow of traditional jewellery ERP software. IMPORTANT Please provide the project in phases, with complete source code, database access, hosting/server access, documentation and deployment under the client's ownership.