Electronic shelf labels in jewellery and watch shops

Electronic shelf labels are rare in jewellery: prices that change by themselves and without mistakes matter little where prices seldom move and each piece is worth a lot. They fit best in watch retail with a large catalogue, in goods sold by weight and tied to gold, and in shops whose web and in-store prices must match.

Why this sector is different

In a supermarket, the label pays for itself through volume: thousands of lines, hundreds of changes a week, hours of staff time. A jeweller has the opposite profile. A few hundred pieces, many unique or close to it, and prices touched a few times a year. The labour saving behind most business cases in other sectors is small here.

What counts is something else. Average value per item is high, so a pricing error hurts more than on a shelf of yoghurt. Space is minimal: you label wedding bands, earrings, wristwatches. And the environment is hostile to a screen, with direct spotlights, locked cabinets and a customer looking from a few centimetres away. On the plus side, there is little hurry. Nobody price-checks a ring on their phone with the urgency they bring to a television.

The gold price: what moves and what does not

The usual argument is that a piece of jewellery follows gold and an electronic label would reflect it instantly. Two things need separating.

The public benchmark exists and is clear. The LBMA Gold Price is set twice a day in auctions, at 10:30 and 15:00 London time. That cadence is a realistic ceiling: there is no technical reason to update a price based on it more than twice a day.

But the shelf price of a piece is not the metal price. It includes design, labour, margin and, for brands, brand value. A designer bracelet does not change price because gold rose on a Tuesday, and changing it daily has a commercial cost: a customer who saw one price in the morning and another in the afternoon will not understand why.

Three cases link price to the metal directly, and all three are a minority:

• Investment gold. Coins and bars sell at a premium over spot. The price is literally the spot price plus a margin.
• Sale by weight. Chains, bracelets and simple pieces charged per gram plus a labour amount.
• Gold buying. What the shop pays the customer depends on the day’s price and on the fineness. This is a rate board more than a product label.

In these cases a screen can make a good board. For the rest of the range, the useful question is which update policy the shop wants: weekly, at each new collection, only when the owner decides. If you advertise sales, the 30-day reference price rule applies, and if you are thinking about prices that move with demand, read the guide on dynamic pricing first.

What the rules say

Two texts matter for a jewellery label, and they say different things.

Price marking. The Price Marking Order 2004 requires a trader who offers a product to consumers to indicate its selling price (article 4). The indication must be unambiguous, easily identifiable and clearly legible, placed near the product, and visible without the customer having to ask (article 7). Prices must be shown in sterling (article 6). The Order does not mention the medium, so a screen complies as well as paper if it can be read. Three details are worth knowing. Sales of works of art and antiques fall outside the Order (article 3). Article 7(2) relaxes the proximity rule for jewellery, precious metal items and watches displayed in a window with a selling price over 3,000 pounds. And article 10 deals with precisely our case: where the selling price changes daily with the price of the precious metals, the requirement can be met by clearly showing the weight, type and fineness of each metal, any part of the price not based on weight, and a prominent notice with the price per unit of weight.

Hallmarking. Under section 1 of the Hallmarking Act 1973 it is an offence, in the course of a trade, to describe an unhallmarked article as wholly or partly made of gold, silver, platinum or palladium, or to sell it with that description, outside the exceptions in Schedule 1. The hallmark is applied to the article itself. We have not verified the minimum-weight thresholds, so check them with your Assay Office before relying on any exemption.

The practical consequence is modest but real. The label on a piece sometimes carries legal information, not just commercial information. Before replacing a paper tag with a screen, know which of the two jobs the tag does. The prudent approach is to leave legal information where it is and use the screen for the price, and to confirm the rest with your Assay Office or Trading Standards.

Format, light and cabinet

Label ranges reach sizes of about 1.5 to 1.9 inches, according to the SoluM and Hanshow datasheets we collect in the technology guide. It is the range used by anyone labelling jewellery or cosmetics. It is small, but a screen of that size is still much larger than the cardboard tag tied to a ring, and not every piece tolerates it.

A prior decision comes before size: label the piece or the tray. One label per piece gives an exact price but multiplies cost and crowds the cabinet. One label per tray or product line is cheaper and quieter, but needs a code or number that the customer matches to the piece, and works badly when each piece has its own price. Watches suit the second approach better, since they share formats and sit in rows. In the only watch retail case we found, Ditur in Aarhus, the shop fixed large digital price boards to the back of the cabinets, each split into about 20 fields, one for each numbered watch. The report does not say which display technology they use. The retail manager’s reason was that the shop runs frequent campaigns and wanted shop prices to match the webshop at all times.

E-paper helps on one point and hinders on another. It emits no light, so it does not dazzle or compete with cabinet lighting, but under very direct spots it can reflect. The difference from LCD is in the technology comparison. And black and white e-paper is sober; the red of a sale tag, an advantage in a grocery, is often the last thing a high-end jeweller wants to see.

Security and discretion

This is where we found the least public information. There are two distinct risks.

The first is tampering: someone with network or software access changing prices. Labels in a locked cabinet are physically protected; the system that drives them is not. Ask the vendor in writing how communication is encrypted, who can change prices and whether each change is logged.

The second is discretion. Some jewellers do not want prices visible from the street, and that is a commercial decision independent of technology: the label goes where the customer sees it when the cabinet opens, not on the glass. The Order’s general rule is about products offered to consumers, with only the narrow window relaxation noted above. If you are unsure which pieces you must price and where, ask Trading Standards.

How much it is really used

Little, and that deserves plain saying. ABI Research wrote in 2023 that most retailers were still at proof-of-concept stage, running pilots, and the bulk of that market is grocery and mass retail. In jewellery and watches the only named case we could document is Ditur. Product pages for small displays “for jewellery” are marketing material, not proof of use.

That does not mean the sector cannot benefit. It means there is no settled practice and no savings data of its own, and that anyone deciding to try should begin with a small pilot in one cabinet, not a full installation.

When it may be worth it

• Shops whose web price and shop price change together, as in the Danish case.
• Watch retailers with a wide catalogue and many brands, where collections turn over and prices need frequent correction.
• Jewellers with investment gold or sales by weight, where price really depends on the spot price.
• Multi-store chains that want the same price list without phoning every branch.

And when it is hard to justify: an independent jeweller with a stable collection, few pieces and prices touched twice a year. To put numbers on your case, use the total cost calculator with your real price-change counts, not a supermarket’s.

Sectors with similar problems

Two other trades combine a small range with high value per item: wine shops and opticians. Their solutions do not transfer as they are, but they are worth reading to compare what information travels with the price in each case.