Ray-Ban 1973 SQUARE II Original Replacement Lenses

Original Ray-Ban RB1973 replacement lenses

Bring your Ray-Ban 1973 sunglasses back to factory performance with original Ray-Ban replacement lenses. If your frame is still in good condition, replacing only the lenses is usually the smartest choice: you keep the fit you already love, save money versus buying a new pair, and enjoy free shipping.

Model compatibility

These lenses are made for Ray-Ban model 1973, also known as RB1973. They are supplied for size 53, with a square lens shape and Base 6 curvature for sunglasses use. Do not use them on similar-looking Ray-Ban frames, as small differences in the groove can affect the fit.

How to identify your model and size

Check the inside of the temple arm. You should find the model code RB1973 and the size 53. If your frame shows another model number, choose the dedicated replacement lenses for that exact frame instead. Matching both the model and size is the safest way to avoid ordering the wrong lenses.

Main features

• Brand: Ray-Ban.
• Compatible model: 1973 / RB1973.
• Size: 53.
• Lens diameter: 61 mm.
• Shape: square.
• Use: sunglasses.
• Adult fit.
• Lens curvature: Base 6.
• Product type: original.
• General lens material: glass, with one option specified as plastic.
• UV400 protection: blocks 100% UVA/UVB.

Available colours

• 31 - Green - Glass.
• 51 - Brown light gradient - Glass.
• 57 - Brown polarized - Glass.
• A5 - Brown gradient - Glass.
• 85 - Brown gradient dark brown - Plastic.
• 3A - Light grey gradient blue.
• 56 - Blue.

For the closest visual match, select the same official lens colour code as your current Ray-Ban RB1973 lenses.

Material, protection and lens options

Most options for this product are listed as glass lenses, valued for their optical clarity, premium feel and good scratch resistance compared with softer materials. Option 85 is specified as plastic, so the material depends on the selected lens option. All options are sunglass lenses with UV400 protection.

Why replace only the lenses

Changing the lenses lets you restore the appearance and protection of your sunglasses while keeping the original frame. It is more sustainable and can be up to 60% cheaper than buying a new pair. ReplacementLenses.net has repaired more than 600,000 glasses, processed over 400,000 orders and served customers in more than 50 countries since 2018. You can also browse more original Ray-Ban lenses for other models.

Authenticity and logo

As original Ray-Ban lenses, they include the Ray-Ban logo; polarized versions may carry the Ray-Ban P marking. We are an official EssilorLuxottica dealer, and our qualified opticians in Granada check lenses with a focimeter and work with MEI Easy Fit Trend technology for precise workshop standards.

Frequently asked questions

Will these fit any square Ray-Ban frame?
No. These lenses are specifically for Ray-Ban 1973 / RB1973 in size 53. Similar frames can have different grooves and may not hold the lens correctly.

How do I know I have the RB1973?
Look inside the temple for RB1973 and size 53. If the marking is worn, do not force installation until the frame has been identified.

Are these original Ray-Ban lenses?
Yes. This is an original product, and original Ray-Ban lenses include the Ray-Ban logo and UV400 sun protection.

Is there a polarized option?
Yes. The available lens options include 57 - Brown polarized - Glass. Choose that specific option if you want polarized lenses.

Will the gradient match my old lenses?
The best match is achieved by selecting the same official colour code. Codes 31, 51, 57, A5, 85, 3A and 56 identify the available variants.

Can I install them myself?
If you have experience, yes, with care. Acetate frames often need gentle heat to flex safely; if the lens resists, visit an optician.

Why choose original lenses over generic ones?
Original lenses are cut for the RB1973 geometry. That means a cleaner fit, fewer tensions on the frame and the authentic Ray-Ban look.