Editors

Growing a Diamond Using CVD: Video

EditorsMay 30, 2018

Growing a Diamond Using CVD: Video

Watch a diamond go from seed to polished in two minutes and 14 seconds.

20180531_Altr-blog-header.jpg
A screenshot from Altr’s 2 minute, 14 second video showing how diamonds are grown using the chemical vapor deposition, or CVD, process.

Last week, I had the chance to catch up with Amish Shah, president of lab-grown diamond company Altr, about a video Altr is releasing giving consumers a look inside the company’s growing facility.

That was, of course, before the big jewelry industry news broke that De Beers would begin selling jewelry set with diamonds grown by its own Element Six at a new facility outside of Portland, Oregon. 

As I wrote in covering the story Tuesday, it is big, but not shocking, jewelry industry news. Element Six has been growing diamonds for industrial purposes—for items like drills and speakers—since 1946, and there has long been speculation about when De Beers would begin producing gem-quality lab-grown diamonds as well.

Now, this is certainly a story we will be following up on to analyze what it means for the industry, to assess De Beers’ goals in getting into lab-growns, and to gauge industry reaction, some of which already has begun to filter in online. (My favorite so far comes from a LinkedIn commenter: “Sometimes fighting the future is not worth the pain.” Excellent point, sir.)  

I am on my way to Las Vegas as I write this, and hope to hear from many in the industry there. If you are not headed to Vegas and would like to weigh in on De Beers’ decision to enter the jewelry end of the lab-grown market, feel free to email me at michelle.graff@nationaljeweler.com or leave your thoughts below in the comments.

In the meantime, I wanted to share this video Altr is releasing giving consumers a condensed view of how it grows diamonds using the chemical vapor deposition (CVD) process at its facility in India. You can watch the video below as well as on the Altr website starting today.


Shah said a professional team of 26 from Open Design & Strategy shot the timelapse video.

It shows the CVD process--sped up to 2 minutes and 14 seconds--starting from when the Type IIa diamond seed, which is as thin as 1 millimeter, is placed in one of Altr’s proprietary reactors. It then shows it emerging with a polycarbon shell that’s removed using a water-jet laser, and culinates with the cutting and polishing process that turns the rough man-made diamond into a polished stone.

Shah said the video is designed to be educational, not advertorial, clearing up confusion among consumers. 

“Everybody still has a
myth about [lab-grown] diamonds,” Shah said. “Most people haven’t seen one or know about it.”

But they hear about them and they want to know: What is a man-created diamond? How is it grown? Who made it?

“This is us taking one more step forward so that today a retailer can show it to their guests (and say), this is where it’s coming from, this is how it’s being made,” he said.

Shah’s assertions are backed up by the research De Beers cited in its news release about entering the lab-grown diamond jewelry market, which stated: “We’ve learned from our research that there is a lot of confusion about lab-grown diamonds.”

Consumer confusion also was stressed in the recent survey results released by the Diamond Producers Association, which circulated an interesting press release last week via email with the subject line, “Laboratory-Grown Diamonds Aren’t Considered ‘Real.’”

I am scheduled to conduct a sit-down interview with DPA head Jean-Marc Lieberherr this week at the jewelry trade shows so the “realness” of lab-grown diamonds and the DPA’s survey is a subject that I plan to return to in a future blog post, because there is a lot to unpack there.

For now, though, I asked Shah—who obviously has a very specific viewpoint on the matter as the head of a lab-grown diamond company—about education, consumers' misconceptions and the industry’s perception of lab-grown diamonds in general, and he made what I consider to be a solid point: “Today’s consumer makes an informed purchase. We as an industry are just trying to catch up with this.”

If there are misconceptions and/or confusion about lab-grown diamonds, it’s because the industry hasn’t done enough to educate consumers up until this point. But, as more stores start to carry man-made diamonds, they will get educated when they come into a store and then make their choice.

“As an industry, rather than creating confusion, I think we should look at education and we will all have growth. That’s what I believe,” Shah said.

For those interested in meeting Shah and learning more about Altr, you can visit them at the JCK Las Vegas jewelry trade show, which starts Friday, June 1 at Mandalay Bay. They are in booth No. S10600 in the Currents section across from the Plumb Club.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Cartier Roadster
WatchesApr 16, 2026
Cartier Brings Back the Roadster

The “watchmaker of shapes” debuted the reworked version of the vintage sports car-inspired timepiece at Watches & Wonders.

Edge Retail Academy Ellen Gardner, Jennifer Motes, Mona Lisa Shaffer, Cindi Haddad Drew
IndependentsApr 16, 2026
Edge Retail Academy Updates Leadership Team

As demand for jewelry retail coaching grows, the company has established a dedicated business coaching leadership team.

Stuller Mountings 2026-2027 Catalog
MajorsApr 16, 2026
Stuller’s Latest Mountings Catalog Is Out Now

The “Mountings 2026-2027” catalog showcases Stuller’s largest and most diverse assortment to date with more than 400 new mounting styles.

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.

Stock image of gold bars
CrimeApr 16, 2026
FBI Issues Warning to Refineries, Retailers Due to High Price of Gold

The alert states that burglary crews are targeting jewelry businesses and details how jewelers and refineries can protect themselves.

Weekly QuizApr 09, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Screenshots of Episode 4 of the “My Next Question” podcast
PodcastsApr 15, 2026
Episode 4: The Natural Diamond Dilemma

Sally Morrison and Mark Klein discuss De Beers’ first beacon in 16 years and the mistake the industry made with lab-grown diamonds.

Randy McKenzie of Spark Creations
MajorsApr 15, 2026
Spark Creations’ Randy McKenzie Dies at 72

McKenzie spent 45 years with Spark Creations and is remembered for being kind, dedicated, and hardworking.

lvajws image 1.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

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

Rolex Cosmograph Daytona Watch
WatchesApr 15, 2026
These Are the New Rolex Watches for 2026

Rolex focused exclusively on the Oyster Perpetual this year, as the model is celebrating its 100th anniversary.

Pomellato Nudo blue topaz necklaces
FinancialsApr 15, 2026
Kering’s Jewelry Shines in Q1, Gucci’s Struggle Continues

The luxury giant discussed the Middle East conflict and its transformation plans, hinting at a stronger jewelry presence in North America.

Kalpesh Jhaveri
SourcingApr 15, 2026
Diamond Club West Coast Names 2026 Board

Kalpesh Jhaveri was re-elected as president for a third year.

Diamond Divas
TechnologyApr 15, 2026
This Jewelry Brand’s Video Series Is Up for a Webby Award

“Diamond Divas,” a social media reality series by Shahla Karimi Jewelry, is nominated in the “Best Social: Fashion & Beauty” category.

De Beers Desert Diamonds Bridal Campaign Imagery
SourcingApr 14, 2026
De Beers Expands ‘Desert Diamonds’ Beacon Into Bridal

The campaign seeks to reignite desire for natural diamond engagement rings by highlighting the “distinct character” of warm-toned diamonds.

Model wearing Bulgari Vimini necklace and earrings
FinancialsApr 14, 2026
LVMH’s Q1 Sales Sink 6% Amid Middle East Conflict

Plus, how Saks Global’s bankruptcy affected the luxury giant’s first quarter.

International Jade Summit
SourcingApr 14, 2026
International Jade Summit to Return to Monterey

Presented by Mason-Kay Jade, the summit, in its second year, will again be held during the Monterey Bay Jade Festival.

Continental Buying Group
Events & AwardsApr 14, 2026
CBG Releases Details for Las Vegas Show

The group has announced its lineup of speakers and a new “Rising Stars” pavilion.

Uniform Object Carbon Form Collection Campaign Imagery
CollectionsApr 13, 2026
Uniform Object’s New Jewelry Collection Centers on the ‘Carbon Form’

The “Carbon Form” collection explores the contrast between high and low materials, using rubber cord alongside 18-karat gold and gemstones.

Jewelers of America
Events & AwardsApr 13, 2026
JA Accepting 2026 Impact Initiative Applications

The program provides essential funding to organizations for projects that enhance the jewelry industry.

Coconut Grove Miami
Events & AwardsApr 13, 2026
Couture Announces New Show in Miami

The jewelry trade show is launching its first open-to-the-public event in Coconut Grove this November.

Police car with lights on
CrimeApr 13, 2026
JSA Offers Reward in Oregon Jewelry Store Armed Robbery

JSA is seeking information about the gunpoint robbery of a Kay Jewelers location in Oregon’s Washington Square Mall.

Watches on a table next to a coffee cup
WatchesApr 10, 2026
These Watches Have Increased in Value the Most Since 2018, Says Chrono24

The top-performing watch models may be surprising, with Rolex and several popular pandemic-era picks notably absent from the top 20.

Ophelia Eve Scroll Toggle Pendant
CollectionsApr 10, 2026
Ophelia Eve’s Toggle Pendant Holds Your Secrets

The “Scroll” toggle pendant, our Piece of the Week, opens to reveal a hidden message, mantra, or love letter written on washi paper.

National Jeweler columnist Sherry Smith, partner at The Retail Smiths
ColumnistsApr 09, 2026
Jewelry Demand Isn’t Stronger, Prices Are Just Higher

Jewelers who misinterpret the state of the jewelry market risk employing the wrong retail strategy, cautions columnist Sherry Smith.

Tiffany & Co. Nathalie Verdeille
MajorsApr 09, 2026
Tiffany & Co. Promotes Nathalie Verdeille to SVP, Chief Artistic Officer

In her newly expanded role, she will continue to oversee the jewelry category, as well as watches, home, and accessories.

Jacob & Co. The Godfather II Musical Watch
WatchesApr 09, 2026
Jacob & Co. Rolls Out Its Sequel to ‘The Godfather’ Musical Watch

“The Godfather II” watch plays two melodies from the mob film’s score, “The Godfather’s Waltz” and “The Godfather Love Theme.”

Jesse Itzler
Events & AwardsApr 09, 2026
JCK Announces Jesse Itzler as 2026 Keynote Speaker

Organizers have also introduced the new JCK Talks Signature Series, as well as an offering of watch-focused workshops and lectures.

Alan Hodgkinson
SourcingApr 09, 2026
AGA To Honor ‘Quiet Leadership’ With New Award

The Alan Hodgkinson Medal recognizes gemologists who are consistently generous with their time and expertise.

×

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