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$ 24.99
Avogadro's constant: "the number of elementary entities per mole of substance". It's a big number...which is to say, there's a lot of stuff in the universe. Wear a piece of it with this hand-stamped tie bar.
Available in aluminum or bronze, it is sturdy enough to last a lifetime. (Note that hand-stamped lettering varies a little, so yours will be charmingly unique.)
Perfect for:
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 $6.50 per order. Gift boxes are ALWAYS included for orders within the U.S. Unless otherwise stated above (near holidays), your order will be processed and mailed within 2 business days. (Near holidays, we often mail out same-day.)
| UNITED STATES | mailed within | in 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 |
For all countries outside the United States, USPS First Class International shipping without gift boxes is $6 per order. Please note: USPS First Class International shipping can take a very long time to arrive, averaging 4 - 12 weeks, depending on the country. USPS tracking numbers will work only until the package leaves the United States. We will replace packages that go missing before exiting the US border, but cannot replace packages that disappear after that.
The customer is responsible for any VAT or import tax charges.
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!
Iam so happy with my tardigrade and book necklace. It was so much more than I expected. Beautiful craftsmanship.
This mobius necklace is lovely. Excellent quality.
I purchased this necklace as a gift and it will be absolutely perfect!
So thankful that people appreciate the tiniest of babies and the research we do on them! Ty!
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.
I bought one for myself and it’s beautiful. I was impressed with the workmanship and bought another to give as a gift. The company is great to work.
What a sweet piece! A talisman for future travel!!
Oh, and I love stargazing too!
... Wendy
Quality was great. Absolutely enthralled with the pieces. Worth every penny.
I love my tardigrade buddy! I got the vertical one on the long chain and it is just amazing and so cute (and noble and smart, my goodness possibly charming as well). It has a brilliant solid weight & is quite lovely in its pose. It is smooth and I love to hold it as well as it just looking cool around my neck. Shipping was super fast, communication was good, and packaging is nice. All the stars.
My new favorite Boutique Academia earrings! Wonderful quality, as usual, and gorgeous design.
Beautiful workmanship and I was pleased with the fast delivery
I've purchased the Ad Astra Per Aspera necklace for several friends who have been going through difficulties, and it has brought encouragement and hope to them. The necklace is lovely and well-made.
