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Pi Necklace

18 items left

Simple, elegant, and smart...this pi necklace is mathematically proven to be the perfect accessory for every occasion. It features your choice of a gold or rhodium plated pendant hanging from a gold or silver chain. The pendant measures about .7 inches (18mm), and is slightly curved for dimensionality.

Perfect for:

  • Mathematicians or math aficionados
  • Engineers
  • Architects
  • Rational and irrational people alike
  • Anyone cool enough to celebrate Pi Day

Customer Reviews

Based on 8 reviews
Ava White
Gold Pi Necklace

My first time ordering from this website and I am very impressed. The necklace is beautiful and arrived in a timely manner. Thank you Boutique Academia your professionalism and attention to scientists/math lovers! Will purchase from here again.

Charlotte Buxton
Pi necklace

I am very happy with my necklace. Postage to Australia and service in general was outstanding.

Jason chant
Everithing went perfectly fine to Czech Republic

I ordered four gifts from your web to the Czech Republic. My order was realized during one or two weeks and everything went perfectly fine. Do not be afraid you can order to whole world.

Nicole Dykema
A lovely gift to commemorate a special day

I ordered the Pi symbol necklace in gold for my best friend. She is returning to upgrading her math and science skills in her mid 30s and I will never forget her terror the day before she started. But now she's winning an award for maintaining an A average over the past two years, all while working full time. I'm so proud. I wanted to get something for the award ceremony to mark the occasion and this necklace is perfect. The shipping was lightning fast and the necklace is beautiful. The gift box is worth it. Thank you so much, I know I will be a repeat customer.

Sheehan M.
Super Fast!

I ordered a necklace which came very quickly. It's high quality and just what I wanted. Thanks so much!

FREE SHIPPING for orders over $45 within the United States. Buy several items-- keep some and give others as gifts!

If you don't quite hit the $45 total, First Class delivery within the U.S. is $3.50 per order, and Priority is $8 per order. Gift boxes are ALWAYS included for orders within the U.S. Orders are processed and mailed within 2 business days. Near holidays, we often mail out same-day.

 UNITED STATES mailed withinin transit for from ordering to arrival 
 Priority Mail  1-2 business days  2 - 4 business days  3 - 6 business days 
First Class  1-2 business days  3 - 5 days  4 - 7 business days

International Shipping

All international orders are shipping in individual black velvet gift bags instead of gift boxes to cut shipping costs. Please see your country below for shipping options. We do not currently ship to the European Union. The customer is responsible for any VAT or import tax charges.

 AUSTRALIA & NEW ZEALANDCost Shipping TimeTracking Code
USPS First Class InternationalNot Available Not AvailableNot Available
GlobalPost Economy$20Less than 4 weeksTracks the entire delivery
CostShipping TimeTracking Code
USPS First Class International$10    Up to 8 weeksTracks up to your country's border
GlobalPost Economy$20    Less than 4 weeks

Tracks the entire

We do not currently ship to the European Union.


We are so sure that you (or your lucky gift recipient) will love our jewelry that we have a 100% Satisfaction Guarantee! If you are unhappy with your order for any reason, even if you just decided it wasn't your style after all, simply mail back your undamaged, unworn jewelry and we will give you a full refund minus shipping. Check our reviews... our goal is to get ALL THE STARS. If you have any kind of problem with your order, please email us at maile@boutiqueacademia.com. We want all of our customers to be completely satisfied!