# Jewelry store step 4: tags, certificates and warranties

> Track high-value pieces with a tag or serial number and diamond certificate on every sale line, attach warranties and print an A4 jewelry invoice.

Source: https://docs.smartposhub.com/business-types/jewelry/step-4-serials-certificates-and-warranties/  
Last updated: 2026-10-30  
Product: SmartPOS Hub (https://smartposhub.com)

A diamond ring or a gold set is a unique, high-value item. You want to know exactly which piece was sold to whom, with its certificate, and you want the warranty in writing. This step sets that up.

## Before you start

- Products are added with prices ([step 3](https://docs.smartposhub.com/business-types/jewelry/step-3-prices-and-making-charges/)).
- Warranties are imported or added in **Products › Warranties** ([step 1](https://docs.smartposhub.com/business-types/jewelry/step-1-showroom-and-modules/)).

## Turn on the tag / serial box

1. Edit the product and open **Stock**.
2. Keep **Manage Stock?** ticked and set a low **Alert quantity** (1 for unique pieces).
3. Tick **Enable Product description, IMEI or Serial Number**.
4. Click **Update**.

![Stock tab of a jewelry product with Business Locations Gold Souk Showroom, Manage Stock ticked, Alert quantity 1 and Enable Product description, IMEI or Serial Number ticked, plus opening stock rows](https://docs.smartposhub.com/_astro/jewelry-product-stock-serial.BiB7CDcb.png) (web app page: `/products/{id}/edit`)
*The serial box is a per-product switch on the Stock tab.*

## Record the tag and certificate when you sell

1. Add the piece to the cart in **Sell › POS** (scan its tag barcode).
2. Each piece is added as its own line. Open the line's details window and type the tag number in **Description** and, for diamonds, the certificate lab and number (for example "Tag 01042 · GIA 2214567890"). On **Sell › Add Sale** the description box sits right under the product name.
3. Finish the sale. The text prints under the product on the invoice and stays on the sale for later searches.

![Sell Details window of invoice AN-06935 with three gold items, each with its serial number under the product name, a Partial payment status, a Layaway deposit payment and the totals](https://docs.smartposhub.com/_astro/jewelry-layaway-sale.Bip1ZZbJ.png) (web app page: `/sells`)
*Each piece's number is stored on its sale line and printed on the invoice.*

Make sure your invoice layout prints it: tick **Show sale description** in the layout. See [Serials, IMEI and lots](https://docs.smartposhub.com/inventory/serial-imei-and-lots/).

## Warranties

1. On the product, pick the **Warranty** (for example *Lifetime Free Polish & Cleaning* for gold, *Silver Jewellery 6 Months Warranty* for silver).
2. Sell as usual. The invoice prints the warranty name and the date it ends.

## A jewelry invoice

1. Open **Settings › Invoice Settings**, switch to the **Invoice Layouts** tab and click **Import invoice templates**.
2. Filter by **A4** and pick **Jewellery invoice**: an elegant A4 layout with purity (karat) and weight columns and a certificate note.
3. Choose **Use for location** (your showroom), click **Import** and confirm.

Details: [Invoice designer](https://docs.smartposhub.com/modules/invoice-designer/) and [Receipts and invoice layouts](https://docs.smartposhub.com/selling/receipts-and-invoice-layouts/).

## Security for high-value stock

- **Count daily**: a short stock count of the showcase at closing ([daily operations](https://docs.smartposhub.com/business-types/jewelry/daily-operations/)).
- **Limit adjustments**: only managers may record stock adjustments (web adjustments only remove stock).
- **Two-step sign-in** for owner and manager logins: see [Account security](https://docs.smartposhub.com/modules/account-security/).

Next: [step 5: custom orders and engraving](https://docs.smartposhub.com/business-types/jewelry/step-5-custom-orders-and-engraving/).

  - [Serials, IMEI and lots](https://docs.smartposhub.com/inventory/serial-imei-and-lots/)
  - [Stock counts](https://docs.smartposhub.com/inventory/stock-counts/)

## Frequently asked questions

### Where does the tag number go?

On the sale line. With Enable Product description, IMEI or Serial Number ticked on the product, each line in the POS has a box for the tag number, certificate number or a description, and it prints on the invoice.

### Can I find which customer bought tag number 01042?

Yes. Search the sales list or the customer's sales for the number, because it is stored with the sale line.

### How do I keep one piece per tag in stock?

Give each unique piece its own product (one SKU, stock 1). Identical pieces (for example plain 22K bands of one weight) can share a product with stock above 1.

### Does the warranty print on the invoice?

Yes. The warranty attached to the product prints with its end date, calculated from the sale date.

### Can I sell a lifetime polishing service?

Yes. Import the Lifetime Free Polish & Cleaning warranty and attach it, or sell an aftercare plan as a service product.

### Can I print a valuation or certificate copy?

Print the invoice on the Jewellery invoice template, which has a certificate note. For valuations on demand, the Certificate and valuation order option group collects the request.