D Diamond Debuts Fine Pet Jewelry for Feline Friends

By Sam Cooley | September 03, 2026

Cats may have nine lives, but thanks to D Diamond, at least one of them can be spent dripping in opulent fine jewelry while humans pay the bill.

In 2025, Racheli Waters Shamir set out to create a jewelry business catering to an underserved market that primarily communicates its needs for luxury goods via barking.

Those first customers were of the canine variety. D Diamond New York built its name on handcrafted 18k gold collars set with diamonds and colored gemstones, positioning itself as the first American fine jewelry house dedicated exclusively to dogs, with pieces running from roughly $1,400 to bespoke commissions in the seven figures.

A sneak peek at D Diamond's yet-to-be-released Fancy — *A sneak peek of D Diamond’s yet-to-be-released Fancy Bone Collar (starting at $6,930)*

D Diamond's Chain Bone Collar in 18k yellow gold, set with D Color diamonds and rubies — *Chain Bone Collar in 18k yellow gold with diamonds and rubies ($10,920–$70,000)*

The newest client base for D Diamond’s pet jewelry: cats

Shamir is now turning to a species that hasn’t had options for such adornments since the reign of Pharaoh Ramesses II of ancient Egypt, when cats outranked most people.

D Diamond's Pink Lady Collar in 18k white gold pet jewelry — *Pink Lady Collar for cats in 18k white gold with pink tourmalines and diamonds ($7,065–$17,340)*

The C Collection debuted July 1. At present, it is centered on variations of a cat collar made with 18k yellow or white gold; stone options vary between pink tourmalines, emeralds, and ametrines, with natural or lab-grown diamonds on the collar’s lock. More designs are slated to follow. (Currently, only tourmalines are available on the website, which is expected to change in the near future.)

*Pink Lady Collar with a grayscale feline model*

“Felines have always carried this distinctive sense of energy, mystery, and presence, and I felt that this connected beautifully with the world of fine gemstones,” Shamir says. “Gemstones are often associated with energy and meaning.”

D Diamond's Lola Collar in 18k yellow or white gold — *Lola Collar in 18k yellow gold ($5,253–$10,850)*

“Dogs are more friendly; they feel you better. Cats are more about energy. So if they like you, they’ll come toward you, and if not, they ignore you,” says Shamir.

She says her designs for pet jewelry are unique, especially the safety-locking mechanism.

“If I don’t show you how to open the collar, you probably aren’t going to know.… So it’s very safe, and inside it’s very smooth—hypoallergenic.”

Shamir says she’s tested her finished pet jewelry on animals with head and neck problems to make sure they would be comfortable and without irritation. “They didn’t feel anything.”

Shamir is not operating in a vacuum. Americans spent $158 billion on their pets in 2025 are projected to spend billions more this year, according to the American Pet Products Association.

The category has a leash, and it’s a long one. Designer dog collars start at around $35 at boutique labels, climb through roughly $310 and reach about $2,500 for a diamond-set collar from a fine jewelry house.

D Diamond enters near the top and keeps going: The forthcoming tennis necklace–style Fancy Bone Collar starts at $6,930 with the final price depending on stone selection—natural versus lab-grown diamonds—and the width of a dog’s neck, which varies greatly between breeds.

Nearly all of D Diamond’s work thus far has focused on dogs. Of the fashion houses making pet collars, very few design for cats. Shamir’s answer was to design the C Collection separately rather than resize the canine line.

“One of the things I find most fascinating is that some of our clients actually purchase the charms for themselves. They love the designs so much that they wear them personally, which I think speaks to the emotional connection people have with the pieces beyond their companions,” says Shamir.

The Paw De Luxe Paw Charm in 18k yellow gold and D color, VVS1-VVS2 costs $2,759 — *Paw De Luxe Paw Charm in 18k yellow gold with diamonds ($1,805–$2,759)*

A possible next frontier for fine pet jewelry: horses

Shamir has many customers from Nebraska and Montana who have horses.

“You know, horses are very expensive, so they invest a lot of money on them,” she says, adding that she’s still doing research before releasing any equine-themed pieces. Eventually, she says, she’s likely to focus on charms for horses.

“Not everyone is looking for the same level of luxury, of course, but our clients who truly understand quality are increasingly interested in investing in pieces that can remain with them for years and become part of their story.”

Top: A feline customer enjoying D Diamond’s Pink Lady Collar in 18k white gold with pink tourmalines and diamonds (photos courtesy of D Diamond New York)