Guess Glasses Model Numbers: Compare the Exact Frame and Size

A Guess glasses model number helps identify the design you are viewing, but the complete version matters. A product name may contain a model reference, a size and a colour code. Comparing only the brand or the first letters can lead you to a different frame or lens version.

This guide uses actual catalogue examples to show a sensible comparison method. It is not a universal decoding system for every Guess collection. Where a combined code is unclear, use the separate measurements in the product details and ask for confirmation.

Keep the entire reference

Copy the full model name, including any letters after a hyphen, size information and colour suffix. GU7842-S 5828Z and GU7897 5047F identify different listings, not simply two colours of one frame. Marciano by Guess references may use a different prefix and should not be treated as interchangeable with Guess references.

A screenshot is helpful, but a written reference is easier to search and compare. Save the product link alongside it so you can return to the exact offer rather than a general search result.

Do not decode every digit by guesswork

Some listings combine size and colour information in a compact reference. Instead of assuming which digits describe which feature, read the structured dimensions. The GU7842-S 5828Z listing, for example, separately states 58 mm lens width, 17 mm bridge width and 140 mm temples.

The GU7897 5047F listing gives 50 mm lenses, a 20 mm bridge and 140 mm temples. Their stated total widths are 145 mm and 140 mm respectively. Those separate fields give a much clearer comparison than the compact code alone.

Optical frame or sunglasses?

Guess optical frames and Guess sunglasses serve different purposes as supplied. An optical frame with demonstration lenses normally requires appropriate finished lenses before use as prescription glasses. Sunglasses include lens features that must be checked for the exact version.

Do not assume that the same brand means the same lens effect. A gradient lens is described by changing tint, while a polarised lens has a separate filtering function. A model can combine features, but the listing needs to say so. A dark or mirrored appearance is not enough to establish polarisation.

Compare lens specifications separately from style

The current GU7842-S 5828Z catalogue entry describes a metal frame, rose-coloured gradient lenses and filter category 3. GU7897 5047F describes a plastic frame, brown gradient lenses and category 2. This comparison shows why a brand-level description cannot replace model-level details.

For outdoor use, confirm the stated UV protection and intended use on the individual product. Do not infer UV performance from lens colour, price or the Guess logo. If a required feature is missing from the listing, ask before ordering.

Check photographs against the written details

Look at the front, side and rear views where available. Compare the bridge, hinges, temple shape and lens colour. Lighting can change how a colour appears, so do not rely on the photograph to identify the exact finish.

If the image and written specifications appear inconsistent, pause and ask the seller to confirm the reference. A matching product name on two websites does not prove that the colour, lens treatment or included accessories are identical.

A model code is not proof of authenticity

A reference, barcode or logo can help identify the stated item, but none is an independent guarantee of authenticity. Check the seller, invoice, product information and the consistency of the supplied goods. If something is unclear, request clarification rather than relying on a single marking.

Do not conclude that an unusual packaging detail automatically proves a product is counterfeit. Collections and supplied accessories can vary. The useful approach is to compare the specific offer and obtain a documented answer from the seller.

Make your final comparison repeatable

Write down the full reference, dimensions, frame material, lens details and current offer contents. Compare prices only after establishing that you are looking at the same version. Then check fit against a comfortable pair and read the current purchasing conditions.

Browse our Guess selection, optical frames and sunglasses. The products below provide real examples of the reference structure; their live listings remain the source for current price and availability.

Models to compare

The following products are examples from the current catalogue. Check the full specifications, dimensions and included items on each product page. Prices and availability are displayed from the shop.

Guess Panto Women Sunglasses – Model GU7842-S 5828Z

€170.00 Original price was: €170.00.€136.00Current price is: €136.00.

View model

Guess Women Sunglasses – Model GU7897 5047F

€110.00 Original price was: €110.00.€88.00Current price is: €88.00.

View model

Frequently asked questions

Does GU identify every detail of a Guess frame?

No. It is only part of a reference. Keep the full model, size and colour information, and compare the separate specification fields rather than assuming the prefix describes the whole product.

Are Guess and Marciano by Guess references interchangeable?

No. Treat them as distinct product lines and compare each complete reference. Similar branding does not mean the shape, size, colour or supplied lenses are the same.

Does a model number prove glasses are authentic?

No. A copied code or logo cannot establish authenticity alone. Check the seller and the consistency of the product and documentation, and ask questions about any discrepancy.

Can the same model have different lens features?

Versions can differ. Verify the full reference and exact lens specification, including tint, polarisation and filter category. Do not apply the features of one listing to the entire brand.