Collections

KIL NYC’s Jewelry Is Ancient Art Made Portable

CollectionsNov 23, 2021

KIL NYC’s Jewelry Is Ancient Art Made Portable

Plus, a look into the life of jewelry designer Konstantinos Leoussis.

20211123_KIL NYC header.jpg
The new “Teras” collection by KIL N.Y.C. is inspired by Greek mythology, as seen in these “Chimera” and “Harpy” cuffs. (Image courtesy of Little Wolf Collective)
New York—Jewelry designer Konstantinos Leoussis of KIL N.Y.C. loves the classics.

Whether he’s pouring over ancient Greek mythology or scouring the world’s antique shops for jewelry, what’s old becomes new again in his hands.

As the son of two New York City attorneys, Leoussis didn’t inherit his creative skill, but he found his inspiration not too far from home.

His maternal aunt, a jeweler, and his “aunt” Irene, a dear friend of his grandmother turned family, were two of his biggest inspirations.

Aunt Irene was Irene Zevon, a Brooklyn-born artist who was raised by Ukrainian immigrants and later traveled in art circles with contemporaries like Mark Rothko and David Burliak.

Her work is in the permanent collections of the Library of Congress, the Butler Institute of American Art, and other private and museum collections.

20211123_1 Konstantinos.jpg
Konstantinos Leoussis is the creative mind behind KIL N.Y.C.

Leoussis followed in her artistic footsteps, studying classical painting at Pratt and Parsons, and later studying to be a metalsmith.

In his early 20s, he worked in an antique store, honing his skills as a jewelry historian, eventually accepting apprenticeships to learn jewelry design and fabrication.

Though he creates his own original pieces, Leoussis also sources antique jewelry, specifically from the late Stuart to the Edwardian era, traveling to Europe once a month to browse through shops for the perfect pieces.

His specialty is mourning and sentimental jewelry from the Georgian era, a topic he has spoken about at lectures and other educational presentations.

“You know, I’ve always been obsessed with things like that. I used to collect things as a child and make pretend museums in my bedroom. I always wanted to have a museum. So now, I really have one.”

 Related stories will be right here … 

Following his apprenticeships, he bounced around in the jewelry world, dabbling in wholesale for antique jewelry companies and working for a few others. But he wanted a company of his own.

“I took the plunge, and it was my 30th birthday present to myself,” Leoussis said. 

As for the name, “KIL” are his initials, which became his nickname in boarding school and followed him to college.

“I mean, I've been called worse things,” he joked.

“The idea behind it was that it was going to just be this kind of edgy jewelry company, and we still are that way.”

His latest collection, “Teras,” which is Greek for “monster,” channels the greatest figures of ancient Greek mythology, from Hercules and Medusa to harpies and chimeras.

Leoussis once dreamed of being a bard, traveling across the world telling age-old stories to eager crowds, and now he’s telling them through his jewelry.

This collection tells the story of the ubiquitousness of beauty.

“The inspiration was showing that even scary things can be really beautiful. And there’s beauty in everything, right?” he said.

Leouissis was what one might call a goth kid, dressed in all black and frequenting Hot Topic.

His father was supportive of his alternative style, gifting him designer, hand-tailored gothic-inspired clothing.

Leoussis is more of a grown-up goth now, usually opting to wear all-black attire.

“I was never demonized or looked at like a monster, but I think because I had issues as a child with acting out and drugs, I think my family considered me to be a little bit monstrous,” he said.

Like Leoussis, many of these ancient monsters were, perhaps, just misunderstood, and this collection is his chance to give a voice to their stories.

The story of Medusa, for instance, seen in the pendant and ring below, has been told a few different ways, but most tellings depict her as a villain, while Leoussis sees her as a victim.

20211123_6 Medusa pendant and ring.jpg
The Medusa pendant ($450) and ring ($450) in sterling silver

His jewelry rewrites her story, turning her into a fierce protector.

“Medusa’s face is the perfect talisman against the evils in this world, and we hope it gives you the strength to tackle life head on,” reads the website’s description of the pieces.

To create these mythology-inspired pieces, he channeled his Greek heritage, his love of history, and some good old-fashioned elbow grease.

“All of those pieces are hand carved out of wax. I did not render anything,” he said.

“I really wanted to create things that were inspired by antiquity but also felt like I just reached into the ground and took them out of the earth.”

The pieces are designed to be unisex, an important element to Leoussis.

“My biggest pet peeve in this industry is when we gender things that just shouldn’t be gendered. And [the jewelry] is really made for everybody.”

The Chimera cuff, seen below, was the first piece of the collection sculpted by Leoussis, a “substantial cuff” inspired by the fire-breathing, two-headed mythical animal hybrid.


Initially designed for men, a female client wore the cuff on her forearm and changed his perspective.

His clientele includes men, women, and those outside of the traditional gender binary, and Leoussis said he designs with everyone in mind.

Leoussis creates the initial designs, but he has a team of about 10 employees who help to bring the creations to life, including three bench jewelers, an operations assistant, a graphic designer, and an accountant.

His mother uses her attorney skills to help her son handle business contracts and other legalese documents that come his way.

He’s on the hunt for another operations assistant to handle only Japanese inquiries, as the brand branches out into the country.

Though heading to other markets, KIL N.Y.C is not expanding into physical retail at the moment, currently only stocked in one store in New Zealand.

Both antique and original items are listed on his website, but most sell on social media—mainly Instagram—quicker than he can upload them to the site.


Consumers, particularly younger shoppers, are on the lookout for companies with a conscience, a box KIL N.Y.C. ticks.

The company’s charitable givings are on theme with its jewelry. For instance, proceeds from sales of its Harpy collection, based on a bird-human mythological figure, go to the American Bird Conservancy.

Proceeds from sales of its jewelry also go to charitable organizations like the African Wildlife Foundation, Visions: Services for the Blind and Visually Impaired, and 22 Until None.

A growing number of consumers also value sustainability, a trend-turned-requirement for many jewelers, and KIL N.Y.C is also ready to meet that demand.

“We really do try to be as sustainable as possible,” said Leoussis, opting to use recycled metal sourced from New York City and carbon conscious shipping boxes, printed using algae ink.

The eco-friendliness carries over to his packaging.

“The box card, the care card, the wrapping tissue paper, everything is either recyclable or biodegradable.”

In another sustainability push, the company is also planning to partner with One Tree Planted, a charity that promotes global reforestation efforts. For every piece of jewelry sold, the company will donate $1.


In addition to cutting down on his carbon footprint, Leoussis is wary that outsourcing could bring copies of his designs to the market.

The designs are special to him, particularly the chimera cuff, his first piece of the collection.

Designed while he was recovering from the COVID-19, his work was the only thing that kept him going, he said.

“This was the only thing that was keeping me somewhat sane, while everything was starting to fall apart.”

Now recovered, it’s full speed ahead for KIL N.Y.C, with travel plans and new collections in the works.

Though a frequenter of trade shows for past jobs, this year is the first time he’s attending shows on behalf of his own company. He’ll be heading to the Miami Beach Antique Show this January.

For his next collection, set to debut for the spring/summer season, Leoussis is taking on the ocean, using nautical themes to explore nature, gender, and other cerebral topics.

“It’s kind of like if you were to stick your arm into a sunken ship and plucked out some things that are sitting in the bottom,” he said, describing the upcoming collection.

In January, he’ll be unveiling a collaboration with a well-known ceramics artist, following previous collaborations with female-focused ceramics company Female Alchemy.

He also has some pieces in the works inspired by his recent trip to Tbilisi, Georgia, where he traveled to learn more about ancient techniques, to which he’ll add his own spin.

For more information about KIL N.Y.C, visit the company’s website.

The Latest

Edahn Golan, Tenoris co-founder and National Jeweler contributor
ColumnistsMay 18, 2026
Edahn Golan: What a K-Shaped Economy Means for Fine Jewelry

In a column for the 2026 State of the Majors issue, Golan spells out how the growing economic divide in the U.S. is reshaping the market.

JCK Industry Fund Logo
Events & AwardsMay 18, 2026
Here Are the 2026 JCK Industry Fund Grant Recipients

This is what the nine recipients plan to do with the funds.

John Wayne Signet Ring
AuctionsMay 15, 2026
American Collector Ponies Up Almost $17K for John Wayne’s Ring

The Western star’s 14-karat gold signet ring sold for six times its low estimate following a bidding war at U.K. auction house Elmwood’s.

1872x1052-NextGem-2026-National-Jeweler-Advertorial.jpg
Brought to you by
How Modern Training Is Becoming a Competitive Advantage for Jewelry Retailers

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

MJSA Education Foundation and Jewelers of America
Events & AwardsMay 15, 2026
JA, MJSA To Sponsor Roundtable at TJS

The discussion, "Rebuilding the Jewelry Workforce," will take place on Saturday, May 16, in Troy, Michigan.

Weekly QuizMay 14, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Three gold rings set with yellow- and brown-hued diamonds
SourcingMay 15, 2026
State of Diamonds: The Way Forward for Natural Diamonds

The jewelry industry is reassessing its positioning as Gen Z reshapes the retail landscape and lab grown continues to gain market share.

Matching pair of Type IIa, D-color diamonds
AuctionsMay 14, 2026
White Diamonds Lead Sotheby’s Auction, Blue Diamond Does Not Sell

A matching pair of 18.38-carat, D-color diamonds from Botswana’s Jwaneng mine sold for $3.3 million, the top lot of the jewelry auction.

Antique Jewelry & Watch Show
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las Vegas

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

DeBeeers_Bridal_Display_Dune_1872x1052.jpg
Supplier BulletinMay 14, 2026
A Diamond Is Forever Continues Desert Diamonds – Bridal Reinvigorated

Sponsored by A Diamond Is Forever

Faceting Apprentice gem cutting school
SourcingMay 14, 2026
State of Colored Stones: The Spirit of Young American Gemstone Cutters

The next generation of lapidarists are entrepreneurial, engaged online, and see the craft as a means for artistic expression.

Ocean Dream diamond
AuctionsMay 14, 2026
‘Ocean Dream’ Makes Waves at Christie’s, Fetching $17M

It was the second auction appearance for the fancy vivid blue-green diamond, which sold for $7.8 million at Christie’s Geneva 12 years ago.

Stock image of police cars with their lights on
CrimeMay 14, 2026
Second Man Arrested in Florida Pawn Shop Shooting

Members of the U.S. Marshals Task Force took a 22-year-old man into custody. He was charged with tampering with evidence.

Stock image of crime scene with police cars and crime scene tape
CrimeMay 13, 2026
JSA’s 2025 Crime Report Shows ‘Concerning’ Rise in Violence

While the overall number of crimes was down, there were more incidences in which robbers pulled out guns, mace, or rammed cars into stores.

Jack Sutton Jewelers
IndependentsMay 13, 2026
New Orleans Jeweler Closing Canal Place Store

Jack Sutton Fine Jewelry is closing its store inside the downtown shopping center after 40 years in business.

Winston Red Diamond painting by Reena Ahluwalia
SourcingMay 13, 2026
Smithsonian Acquires ‘Winston Red’ Diamond Painting

Reena Ahluwalia’s painting of the rare red diamond is the first contemporary painting to join the National Gem Collection.

Anna Maccieri Rossi Ora Wood Sunrise Cuff, Marie Lichtenberg High Jewelry Bandana, Anna Maccieri Rossi Carpe Diem Pendant
TrendsMay 13, 2026
State of Design: Only the Innovative Will Survive

The price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.

The Retail Smiths founder and National Jeweler columnist Peter Smith
ColumnistsMay 12, 2026
It’s Official: We’re Getting ‘Brain Rot’ From Watching Short-Form Videos

Peter Smith gives tips on leading meetings, developing marketing, and making trade show appointments in the age of short attention spans.

Jessica McCormack Medallion Capsule Collection Campaign
CollectionsMay 12, 2026
Jessica McCormack Debuts Antique Coin-Inspired Medallions for Summer

The 11-piece “Medallions” capsule collection features five motifs: a crying eye, a heart on fire, a spiral, a flower, and a swallow.

People shopping in a jewelry store
IndependentsMay 12, 2026
State of Retail: 6 Things Retailers Should Know About Consumers Today

From Gen Z’s view of luxury to “doom spending,” these are the six consumer trends to note this year.

Tiffany & Co. x CFDA Jewelry Designer Award
Events & AwardsMay 12, 2026
The Tiffany & Co. x CFDA Jewelry Designer Award Is Back

The partners have announced the second cycle of the program, which has expanded to include a $25,000 student scholarship.

Merle, Juanita, and Brent Staats of Staats Jewelers
IndependentsMay 11, 2026
Kansas Jeweler Closing After 70 Years

The owners of Staats Jewelers are heading into retirement.

Former Macy’s CEO Jeffrey Gennette
TrendsMay 11, 2026
Former Macy’s CEO Joins Signet Jewelers Board

Jeffrey Gennette, who retired in 2024 after 41 years with Macy’s, is the newest member of the jewelry retailer’s board of directors.

Buddha Mama gold earrings hexagon emerald
TrendsMay 11, 2026
Amanda’s Style File: Lucky May

May babies are lucky to have emeralds, a gemstone admired for centuries, as their birthstone, writes Amanda Gizzi.

Clientbook Logo
TechnologyMay 11, 2026
Clientbook’s New Tool Helps Jewelers Plan In-Store Events

The new module allows retailers to plan, promote, and measure the success of events from a single dashboard.

Pandora lab grown diamond necklace
Lab-GrownMay 08, 2026
NDC Publicly Criticizes Pandora Over ‘Misleading’ Natural Diamond Claims

NDC said in an open letter that Pandora’s statements about the carbon footprint of lab grown versus natural diamonds are inaccurate.

Ronnie VanderLinden and Feriel Zerouki
SourcingMay 08, 2026
Ronnie VanderLinden Takes Over as WDC President

The diamantaire and industry leader succeeds Feriel Zerouki and said he will focus on being a “champion” for natural diamonds.

Glenn Spiro Old Moghul Golconda Earrings
TrendsMay 08, 2026
Rihanna Chooses ‘Desert Diamonds’ for 2026 Met Gala

She wore our Piece of the Week, Glenn Spiro’s “Old Moghul Golconda” earrings, featuring fancy brown-yellow diamonds totaling 51.90 carats.

×

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