Black Square Sunglasses with Grey Gradient Lenses
Dior DiorTreasure S1I embodies precious and contemporary elegance, where structured design and jewelled details combine to create a unique accessory. A model designed for a woman who loves to stand out with refinement and character.
The square shape defines the face, creating a bold and modern effect. The black acetate frame expresses essential elegance, providing the perfect base to enhance the luminous details that make this model exclusive.
The gradient grey lenses add depth and sophistication, offering comfortable vision and 100% UVA/UVB protection. A versatile choice that maintains a sophisticated look in any situation.
A distinctive element is the gold-coloured Dior signature in metal, embellished with white Swarovski® crystals, which transform these glasses into a true jewellery accessory. A luminous detail that catches the eye without being excessive.
The structure ensures a stable and comfortable fit, making this model perfect for both everyday and more elegant looks.
Perfect for a woman who desires a sophisticated and distinctive accessory, these glasses represent the ideal fusion of glamour, luxury, and contemporary design, for a style that does not go unnoticed.
- Reference: CD40232I5401B
- Frame: Polished black acetate
- Lenses: Gradient grey
- Fitting: Standard
- Size: 54-18-140
- Made in: Italy
- Best suited for these face shapes: Oval, Round, Heart
Size Guide
Eyeglass size guide
Are you about to select your new glasses, and you're wondering: what should be the perfect size? This is an important consideration, especially if you're thinking of buying them online without trying them on first. Here you'll find the
answer, whether you already have a frame but don't know the size, or whether you're starting from scratch.
How to read your eyeglass size
If you already have a pair of sunglasses or eyeglasses and want to know their size, check the inside of the temple.

The three numbers you see correspond to the lens width , the bridge width and the temple length .

The width of the lens is also called the caliber and corresponds to the size of your glasses .
The bridge measurement refers to the part of the frame that rests on the nose and connects the lenses.
The temple is measured in its entirety, from the end that rests behind the ear to the junction with the front of the glasses.
Please note: These three measurements are expressed in millimeters .
On SunglassUp.it, the size of the glasses is shown on the product sheet, above the ADD TO SHOPPING BAG button.
What do you need?
A mirror
A credit card or similar sized card
How to find your size

Place the long side of the paper in the center of your nose, align the short side with your eye, and look at yourself in the mirror.



How to know if your glasses are the right size
When you wear the perfect glasses, you can feel it: they're comfortable and enhance your image to the fullest. However, if you're not entirely sure about the size, here are some helpful tips.
If your glasses slip, there's something wrong. They're probably too big. With the correct size, the frame fits snugly on your nose, without being too tight. The temples should be neither too tight nor too loose at the temples.
Put on your glasses and look at yourself in the mirror: your pupils should be aligned horizontally in the center of the lenses.
If the glasses move easily when you smile when pressed against your cheeks, you may need a different size that best suits your face.
Speaking of eyebrows: personal style matters here. While many recommend keeping the frames below the brow bone, we've noticed that some people prefer glasses that cover them, especially oversized models with distinctive profiles or sunglasses. The decision is yours!
Do you have any doubts left?
Chat with our Customer Service or email servizio.clienti@sunglassup.it . We'll be happy to help you choose the perfect size.
Your order will arrive in an elegant SunglassUp packaging. Add a note at checkout to receive it and make your gift even more exclusive.