Editors

A gemstone cap that can read your mind

EditorsSep 03, 2014

A gemstone cap that can read your mind

Associate Editor Brecken Branstrator takes a look at a new headpiece designed by U.K.-based fashion house The Unseen, which is covered in gemstones that respond to brain activity by changing color.

As a child of the ‘90s, I was big on the mood ring. Not to be deterred by the fact that they were basically always either dark blue or green no matter how I was feeling, they were a chosen accessory for me for a  while when I was young.

So when I saw an article on Huffington Post titled “This Gemstone Cap, Which Changes Color According To Brain Activity, Is The Mood Ring Of The Future,” naturally I had to click through. (In case the multitude of articles posted online and spread through social media haven’t somehow clued you in, we Millenials love to reminisce about the heyday of our childhood and the things we grew up with, what toys were popular back then, what cereals we were eating, and much more. So how could I not read the story that was going to update me on the modern-day mood ring?)

What I found was even cooler than I expected (other reactions when I shared the content included “creepy”). U.K.-based fashion studio The Unseen, led by Lauren Bowker, partnered with Swarovski to create a headpiece made of gemstones that change color in response to brain activity.



Fashion studio The Unseen, led by Lauren Bowker, designed this cap that is covered in black spinel gemstones that respond to brain activity through color change.

According to The Unseen, more than 4,000 black spinel stones were used for the cap, chosen for their composition--“being similar to that found in the human bone,” the studio’s website says, a factor that makes the gemstone compatible with humans and enabling “each stone when worn to act as a conduction insulator, absorbing energy loss from the head.”

The stones were grown in Swarovski’s lab to ensure uniformity throughout for qualities like shape and symmetry.



“When worn the headpiece becomes a reflection of the inner human thought,” The Unseen said.

The stones cover the top of the headdress on overlapping layers of leather. They are covered with a signature ink that was designed by Bowker to respond to different environmental factors, which enables the stones to visualize the energy loss with a color-change gradient--black, orange, red, green, blue, and purple. The stones absorb the energy loss and change color accordingly.

Excitement, fear, and anxiety all would create different colors on the stones, and quicker shifts in emotion produce a more dramatic pattern on the cap.

I think this is one of the more fascinating combinations between technology, science and accessories that I’ve seen. Local news reports that The Unseen will unveil the cap at London Fashion Week this month. I’d love to see the action in person, but unfortunately, I think for now I’m stuck with mood rings. What do you think? I’d love to hear your feedback in the comments.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Sean Gilbertson
SourcingJul 06, 2026
Gemfields CEO Sean Gilbertson Steps Down

After eight years, Gilbertson is leaving his post at the mining company, which is currently facing a slew of operational challenges.

Bachendorf’s New Dallas Location Exterior Rendering
IndependentsJul 06, 2026
Bachendorf’s To Open Fifth Store In Dallas

The new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.

Jung Kook for Graff
MajorsJul 06, 2026
Graff Names BTS Star Jung Kook as New Ambassador

The pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Pandora pearl jewelry campaign imagery
CollectionsJul 06, 2026
Pandora’s New Baroque Pearl Collection Is a Whimsical ‘Wonder’

One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.

Weekly QuizJul 01, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
London Diamond Bourse President Charlotte Rose
SourcingJul 02, 2026
London Diamond Bourse Elects First Female President

Charlotte Rose said her election is “a sign that this is an industry capable of change.”

Bracelets_1872_1052.jpg
Supplier BulletinJul 02, 2026
Elevating Retail Showcases with Today's Necklace & Bracelet Trends

Sponsored by Rio Grande Jewelry Supply

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Oscar Heyman Flag Brooch
TrendsJul 02, 2026
Oscar Heyman’s Flag Brooch Celebrates America

The American jewelry house, founded by Latvian immigrants, has been creating American flag brooches since 1917.

D. Geller & Son store mural
IndependentsJul 02, 2026
D. Geller & Son Partners with KSU Art Students on Store Mural

The artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.

Hand taking jewelry out of jewelry box
Events & AwardsJul 02, 2026
Stratus Estate Buyers Offers Jewelers Turnkey Buying Events

Its team can evaluate jewelry and watches, as well as luxury handbags, artwork, and collectibles.

Hand holding a gas pump
SurveysJul 01, 2026
Consumer Confidence Ticks Up in June

Falling oil prices were a factor in the slight month-over-month improvement.

Rio Grande Millgrain Wedding band and Round Diamond Engagement Ring
CollectionsJul 01, 2026
Rio Grande Launches First Finished Bridal Collection

The new offering comprises more than 120 bridal and engagement ring styles with natural and lab-grown diamonds.

Rockefeller Center Rink Rolex Clock
WatchesJul 01, 2026
Rolex Unveils Clock at Rockefeller Center

The clock is part of the celebration for the soon-to-open Rolex headquarters on New York City’s Fifth Avenue.

Kristen Cannon
IndependentsJul 01, 2026
Kristen Cannon of Valobra Master Jewelers Dies at 49

The public relations professional is remembered for her benevolent generosity and unwavering commitment to those around her.

G Shock Pokemon watch in Pokeball
WatchesJun 30, 2026
Pokémon Fans Will Want to Catch This New G-Shock Watch

The new watch commemorates Pokémon’s 30th anniversary.

Saks Fifth Avenue door sign
MajorsJun 30, 2026
Saks Global Emerges From Bankruptcy With New Name

The luxury retailer is now called Exemplar Luxury Group.

Jade Ruzzo Lady Collection Compact Mirror Necklace
CollectionsJun 30, 2026
Jade Ruzzo’s New Collection Embodies the Art of Being a Lady

The “Lady” collection is a new take on old beauty standards with gemstone-adorned hair pins and combs, a compact mirror necklace, and more.

Blue Nile Montana sapphire jewelry
SourcingJun 30, 2026
Blue Nile Introduces Montana Sapphire Collection

The new line is included in the e-tailer’s curation of jewelry celebrating America’s 250th anniversary.

American Gem Society
GradingJun 30, 2026
AGS Opens 2026 Recertification Exam

All active members who earned their credential or designation before Dec. 1, 2025, are required to recertify.

Briony Raymond Carousel Collection Campaign Imagery
CollectionsJun 29, 2026
Briony Raymond’s New Collection Is a ‘Carousel’ of Hard Stones

The new jewelry collection uses a colorful palette of onyx, malachite, tiger’s eye, mother-of-pearl, lapis, turquoise, and coral.

Lee Michaels Fine Jewelry Ridgeland Mississippi exterior
IndependentsJun 29, 2026
Look Inside Lee Michaels’ Revamped Mississippi Flagship

Lee Michaels Fine Jewelry is celebrating 30 years in the Ridgeland, Mississippi community.

Sean Milliner
GradingJun 29, 2026
National Rarities Announces New Gemology Manager

Sean Milliner has joined the company.

GIA London Canary Wharf campus
GradingJun 29, 2026
GIA to Open New London Campus

Classes will begin in August at GIA’s new Canary Wharf location.

Hogback diamond ring
AuctionsJun 26, 2026
‘Hogback’ Diamond Ring Finds a New Home

A ring set with “hogback” diamonds, an early stone cut dating to around the 16th century, sold for more than $20,000 at a U.K. auction.

Kris Averi Rainbow Prism Thorn Ring
CollectionsJun 26, 2026
Strength Is Sharpened Into Beauty in Kris Averi’s ‘Prism Thorn’ Ring

The rainbow version of the ring, our Piece of the Week, features angel-cut, octahedral lab-grown sapphires designed to be worn as armor.

A tray of Rembrandt charms
MajorsJun 26, 2026
Rembrandt Charms Debuts ‘Charms That Give Back’

The new initiative donates a portion of the proceeds from select charms to charitable causes.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy