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Mathematical Couple Rings (sin2x & cos2x)

28 reviews
96.4% of buyers enjoyed this product! 18659 orders
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Show your unique bond and shared love for math with our Mathematical Couple Rings! These stylish silver rings, engraved with sin²(x) and cos²(x), symbolize the perfect harmony between two complementary identities. Ideal for couples who share a passion for math, science, or just appreciate the beauty of equations, these rings make for a meaningful and thoughtful gift.

Features:

  • Unique Design: Engraved with sin²(x) and cos²(x) formulas, symbolizing balance and unity in every relationship.
  • High-Quality Material: Made from durable and premium stainless steel, ensuring a comfortable fit and long-lasting shine.
  • Sizes Available: Choose from a variety of sizes to ensure the perfect fit for both rings.
  • Perfect for Gifting: Comes as a pair, making it an ideal present for anniversaries, Valentine’s Day, or just because.

Package Includes:

  • 2 Rings (sin²(x) and cos²(x) engravings)

Why Choose This Set? The Mathematical Couple Rings aren’t just accessories; they represent a unique connection rooted in science and mutual understanding. Whether you’re both math enthusiasts or simply admire the symbolism, this set is a beautiful way to celebrate your relationship.

Add a touch of sophistication and intellectual charm to your love story with these exclusive rings.

sin cos maths couple rings

 

 

 

 

 

 

 

 

 

 

 

 

 

Design:
Engraved
Pattern:
Sin and Cos
Jewelry Findings Type:
Maths
Item Weight:
1 g x2

SHIPPING AND DELIVERY

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in France, Russia, China, Thailand, Singapore will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 15-45 Business days
Canada, Europe 15-45 Business days
Australia, New Zealand 15-45 Business days
Central & South America 20-45 Business days
Asia 15-45 Business days
Africa 25-60 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time (90 days not including 2-5 day processing) you can request a refund or a reshipment.
  • if you received the wrong item or if there was a problem with it, you can request a refund or a reshipment within 7 days after you received your parcel.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Chemical Academy (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 7 days after the guaranteed period for delivery (90 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Real customer reviews

28 reviews
96.4% of buyers enjoyed this product!
5 stars
(27)
4 stars
(0)
3 stars
(0)
2 stars
(0)
1 star
(1)
Buyer
Review
P***c
verifed buyer
17 Jan 2025

neatly engraved

T****r
verifed buyer
15 Jan 2025

high quality rings

A****g
verifed buyer
15 Jan 2025

fast shipping

A****e
verifed buyer
15 Jan 2025

Perfectly engraved rings and customer service is superb

L****e
verifed buyer
15 Jan 2025

the best rings for ever. Size 8 was a bit bigger for me. But shop offered me 50 % discount for the second purchase. <3

W****r
verifed buyer
14 Jan 2025

merci Chemical Academy

G****n
verifed buyer
14 Jan 2025

Received a wrong ring, but they sent me a new one for free

J****k
verifed buyer
13 Jan 2025

ok

A****d
verifed buyer
12 Jan 2025

Received my order way ahead of the expected delivery date

T****e
verifed buyer
12 Jan 2025

Stunning pieces, the pictures don't do them justice. Plus, the customer service was very helpful and responsive. Highly recommend Chemical Academy!

M****s
verifed buyer
11 Jan 2025

Quick delivery and the rings are even more beautiful in person.

S****a
verifed buyer
11 Jan 2025

I ordered rings in silver color, sizes 7 and 9. They fit perfectly!

S************r
verifed buyer
10 Jan 2025

Rings are not as they appear on the website. They are not "brushed" metal as shown (so they are really shiny) and the engraving is not deep or dark. So, you can't see the engraving at all under almost any light source :(

N****x
verifed buyer
10 Jan 2025

fast shipping and super engraved, recommend Chemical Academy

K****h
verifed buyer
10 Jan 2025

loved them, thanks chemical academy

T****h
verifed buyer
10 Jan 2025

I ordered silver color, but received gold. But they shipped the correct rings after I wrote email to them. Generally rings are well engraved, Loved them

A***m
verifed buyer
9 Jan 2025

cool

A****a
verifed buyer
9 Jan 2025

awesome

A****z
verifed buyer
8 Jan 2025

Super!

S****m
verifed buyer
7 Jan 2025

My girlfriend loved it :) so lovely rings

S***v
verifed buyer
7 Jan 2025

arrived on time

Y***b
verifed buyer
7 Jan 2025

my 3rd order from Chemical Academy <3 Thanks a lot!

L****h
verifed buyer
7 Jan 2025

Amazing. Arrived earlier than expected

S****f
verifed buyer
7 Jan 2025

so accurate, thanks chemical academy

J****n
verifed buyer
6 Jan 2025

cool! I ordered silver ones and I am happy with them

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