About RockHer

About RockHer

Four generations in the diamond trade.
One question, asked again and again.

“I want to do this right. What diamond should I get?” For decades, friends and family brought that question to us. RockHer™ is the answer.

The Story

When friends needed to buy a diamond, they came to us.

For as long as diamonds have been sold, people have brought the same question to the jewelers they trust: I want to do this right, what diamond should I get? RockHer was built by two families who spent their lives answering it.

Chief Executive Officer Jim Vernon is a second-generation jeweler who learned the trade at his father’s wholesale house, Frank Vernon Diamond Brokers. A graduate of Stanford Law who chose diamonds over the courtroom, he served on the board of the Diamond Club West Coast, on the board of managers of the American Gem Society Laboratories during the years it built its landmark diamond cut grading system, and as president of the United States Golf Association. For decades, his practice was commissioning personal pieces for a private clientele of executives, touring professionals, actors, and royalty, most of all in Los Angeles. Every piece was made for exactly one person.

Founder Shawn Feinblum is the fourth generation of a family in the international diamond and gemstone trade, a family that has owned and operated one of the industry’s large fine jewelry and gemstone houses since the 1980s. He grew up around colored stones and finished jewelry as much as diamonds. A GIA Graduate Gemologist, he built RockHer to answer that question at scale, spending two years encoding the family’s judgment into ROSI™, our gemological intelligence, alongside senior experts including former heads of the GIA Los Angeles laboratory.

That private standard is now the public one. Every ring is made entirely to order in Los Angeles, every diamond is hand-selected and ROSI™ scored, and every accent stone is a natural diamond. Two families of jewelers. One standard.

Read the full leadership profiles

Three oval diamond engagement rings worn on a hand
What We Do

One atelier. Three ways in.

Design Your Ring

Choose a setting, then pair it with a diamond we have hand-selected and ROSI™ scored. We make the finished ring to order at our Los Angeles atelier in 8 to 12 business days.

Build an Engagement Ring

Find Your Diamond

Search natural and lab-grown diamonds, every one GIA or IGI certified and ROSI™ scored, so you compare stones on evidence instead of guesswork.

Search Diamonds

Bands & Fine Jewelry

Wedding bands, studs, pendants, and fine pieces, made to order in solid gold or platinum and finished at the same benches as our rings.

Explore Fine Jewelry
Our Principles

Three standards. No exceptions.

01

Made to Order

Every piece begins when you order it. No inventory, no warehouse stock, no compromises in the name of speed. 8 to 12 business days, every time.

02

Real Materials

Solid gold or platinum, never hollowed, never plated. Natural accent diamonds, always. Lab-grown center stones offered honestly when chosen.

03

Gemologist-Led

Every diamond is hand-selected and ROSI™ scored before it enters our collection. The score you see is the score we use internally.

Oval diamond engagement ring with baguette side stones at the RockHer Los Angeles atelier
Inside the Atelier

Made to order, start to finish.

Nothing here is pulled from a shelf. When you order, we cast for it, set for it, and finish it by hand at our Los Angeles atelier, in 8 to 12 business days. Made to order is not a production method to us. It is the quality standard everything else depends on.

Our atelier is a working studio, not a retail showroom. Every piece you order takes shape at one of our benches, under the same roof, under our own eyes.

01

Cast

In solid gold or platinum, cast for your order. Never hollowed, never plated.

02

Set

Stones set under master gemologist supervision.

03

Finish

Edges hand-finished, inscriptions laser-engraved.

04

Inspect

Quality checked at three independent stages.

05

Proof

Photographed and proofed before it ships.

Our Promises
A ring is a promise. These are ours.
Complimentary resizing for 60 days on every ring
Lifetime warranty on every piece we make
Every diamond GIA or IGI certified and ROSI™ scored
Natural accent diamonds, always
Made entirely to order at our Los Angeles atelier

In writing, on every order.

91.4
ROSI™ Score / 100
The ROSI™ Score Report

Know exactly what a diamond is worth, before you buy it.

Considering a diamond, here or anywhere? Send the GIA or IGI certificate number and our gemological team returns its ROSI™ Score and a read of where it sits in the current market. Complimentary, within minutes.

Score a Diamond
Fair Market ReadSample · Live market data
$4,650This diamond sits here$5,400

Where stones of the same exact specifications are trading on the open market right now. You get a straight answer, even when the diamond is not ours.

The People

Gemologists, jewelers, designers.

Jim Vernon
Chief Executive Officer
Second-generation jeweler

A graduate of Stanford Law who learned diamonds at his father’s wholesale house, Frank Vernon Diamond Brokers. Jim spent decades commissioning personal pieces for executives, touring professionals, actors, and royalty, and served as president of the United States Golf Association.

Shawn Feinblum
Founder
GIA Graduate Gemologist

Fourth generation of a family in the diamond and gemstone trade, owners of one of the industry’s large fine jewelry and gemstone houses since the 1980s. Shawn built ROSI™ with senior gemologists, including former heads of the GIA Los Angeles laboratory.

John Anderson
Lead Gemologist
20 years

A gemologist for twenty years, John helps lead the RockHer team, reviews the diamonds behind every ROSI™ score, and is the jeweler you meet when you book a consultation.

Angie
Client Care
Annie
Diamond Procurement
Tami
Manufacturing
Moi
Quality Control
30+ years

Behind them: the bench jewelers, diamond setters, casters, and designers who bring every order to life. First names only for our team, for their privacy.

1967
Heritage since
10,000+
Clients served
50,000+
Diamonds evaluated
4.9 / 5
Average review
Personalized Guidance

Talk to a jeweler.

Book a virtual appointment with our Lead Gemologist, John Anderson. Honest answers, diamonds compared side by side, and guidance at your pace. No purchase required.