Features
SIZE

57 mm.
Before making your purchase, make sure to check the measurements of your glasses. This model is available in x lens width. All dimensions are listed in millimeters and include lens width, bridge, and temple length.
MATERIAL

Cristal
EASY INSTALLATION

Easy Installation
All our spare parts are designed to fit perfectly with your original model. You can do it yourself at home by following our step-by-step instructions or videos.
Description

Original Ray-Ban RB4125M replacement lenses
If the lenses in your Ray-Ban RB4125M are scratched, chipped or worn, replacing the lenses is the smart way to bring them back to life. These original Ray-Ban replacement lenses restore the look, protection and optical feel of your sunglasses for far less than buying a new pair, with free shipping included.
Model compatibility
These lenses are made for the Ray-Ban 4125M model in size 57. Please check your frame reference carefully before ordering, as Ray-Ban lenses are cut to very precise shapes and even small differences between models can affect the fit.
We do not recommend fitting original Ray-Ban lenses into replica or imitation frames. The geometry is designed for genuine Ray-Ban RB4125M frames, and a non-original frame may not hold the lens correctly.
How to identify your model and size
Look inside the temple arm of your sunglasses. You should find the model code, usually shown as RB4125M, followed by the size information. For this product, the compatible size is 57.
If the printing has worn off, measure one of your current lenses and compare the shape carefully. You can also send us a clear photo of the inside temple and the front of the frame; our team checks Ray-Ban replacement lenses every day and can help before you order.
Main features
- Brand: Ray-Ban
- Compatible model: 4125M
- Size: 57
- Lens diameter: 65 mm
- Lens material: glass
- Lens curve: Base 6
- Collection: Ferrari
- Use: sunglasses
- Audience: adult
- Product type: original
- UV400 protection: blocks 100% UVA/UVB rays
Available lens options
- 31 - Green - Glass
- 3F - Blue gradient - Glass
- 3K - Brown gradient silver mirror - Glass
- 71 - Grey gradient - Glass
- 30 - Silver flash mirror - Glass
Material, protection and lens finishes
These RB4125M lenses are made of glass, a premium material appreciated for its crisp optical clarity and original Ray-Ban feel. The Base 6 curve helps preserve the intended fit and appearance of the frame.
All listed options are sunglass lenses with UV400 protection, blocking 100% of UVA and UVB rays. Polarisation should only be assumed when a variant is explicitly marked as polarised; none of the listed lens options for this product are described as polarised.
Why replace only the lenses
If your frame is still in good condition, replacing only the lenses is the most sensible repair. You can save up to 60% compared with buying new sunglasses, reduce waste and keep the frame that already fits you well.
ReplacementLenses.net has repaired more than 600,000 glasses and processed over 400,000 orders in more than 50 countries since 2018. You can also browse our full range of original Ray-Ban lenses.
Authenticity and logo
Because this is an original Ray-Ban product, the lenses include the Ray-Ban logo. As an official EssilorLuxottica distributor, we supply genuine replacement lenses, not generic white-label alternatives.
Every lens is checked by qualified opticians in our own workshop in Granada. We use a lensmeter to verify lenses and MEI Easy Fit Trend technology for precision work when required.
Frequently asked questions
Will these lenses fit any Ray-Ban 4125 frame? These replacement lenses are for Ray-Ban 4125M in size 57. Please confirm the model and size printed inside your frame before ordering.
Are they original Ray-Ban lenses? Yes, this is an original Ray-Ban replacement product. Original Ray-Ban lenses include the Ray-Ban logo and preserve the factory look of the sunglasses.
Are the lenses glass or plastic? The product attributes specify glass lenses. This gives the RB4125M replacement lenses a clear, premium optical feel.
Do they provide UV protection? Yes, these sunglass lenses offer UV400 protection, blocking 100% of UVA and UVB rays. The tint is not merely cosmetic.
Can I install them myself? If you have experience with sunglass lens replacement, you may be able to fit them carefully. If the frame resists or you are unsure, visit an optician to avoid damaging your RB4125M frame or the glass lenses.
Are any of these lenses polarised? A lens should only be considered polarised if the selected variant clearly states it. The lens options listed for this product are not marked as polarised.
What if the temple printing is no longer readable? Measure your current lens and send us photos of the frame. Our team can help you verify compatibility before you buy.
Tutorial
Installing Ray-Ban RB4125M replacement lenses
Before fitting the lenses, make sure your frame is Ray-Ban 4125M and size 57. A different size or model can prevent the lens from seating correctly and may put unnecessary stress on the frame.
Metal frames are usually opened by loosening the rim screw. Acetate or plastic frames are normally fitted by pressure; gentle warmth from lukewarm water can make the material more flexible, but avoid excessive heat. Rimless or special constructions should be handled by a professional.
Work on a clean surface and apply gradual pressure from the lens edges, not from the centre. If the lens does not go in smoothly, stop and check the model again rather than forcing it.
If you are not used to replacing Ray-Ban lenses, we recommend visiting an optician. In our Granada workshop, qualified opticians perform this type of lens replacement every day using professional equipment.
Be Eco-Friendly

Commitment to Quality and the Environment
At Replacementlenses.net, our commitment to both quality and the environment is at the core of our mission.
We understand the importance of sustainability in today’s world, which is why we offer replacement parts for your glasses. Our goal is to help you extend the life of your favorite eyewear, reducing waste and the need for new purchases.
By choosing our products, you not only save money but also contribute to a more sustainable future. We believe that every small effort counts and that together we can make a big difference in protecting our planet.
Additional information
| Weight | 25 g |
|---|---|
| Dimensions | 20 × 10 × 1 cm |
| Brand | Ray-Ban |
| Audience | Adult |
| Use | Sun |
| Product Type | Original |
| Shape | Aviator |
| Lenses Color | 30 – GREEN LIGHT MIRROR TOTAL SILVER – CRYSTAL, 31 – GREEN – CRYSTAL, 3F – BLUE GRADIENT – CRYSTAL, 3K – BROWN GRADIENT SILVER MIRROR – CRYSTAL, 71 – GREY GRADIENT DARK GREY – CRYSTAL |
| Lens material | Cristal |
| Lens curvature | Base 6 |
| Width (mm) | 51, 65 |
| Height (mm) | 51, 65 |
| Front Material | Nylon |
| Ray-Ban Model | |
| Size | 57 |
| Collection | Ferrari |
| Temples Material | Metal, Plastic |






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