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

Foundrae London Store Showcases
IndependentsJul 14, 2026
Foundrae Opens First Standalone Store Outside US

The New York-based jewelry brand has expanded overseas, opening a store in London’s Mayfair district.

The Retail Smiths Principal Partner and National Jeweler columnist Sherry Smith
ColumnistsJul 14, 2026
Sherry Smith: What Today’s Jewelry Consumer Is Telling Us

Rising revenue does not automatically mean a healthy business, particularly in the current economic landscape, Smith writes.

Mindi Mond New York emerald shoulder duster earrings
TrendsJul 14, 2026
Amanda’s Style File: Shoulder Dusters

These long, fluid drop earrings are sure to catch the eye.

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.

FBI Most Wanted image of Alberto Perez-Elias
CrimeJul 14, 2026
Man Charged in $1M Jewelry Store Heist Lands on FBI Most Wanted List

Alberto Perez-Elias is one of four men charged with robbing a Cape Coral, Florida, jewelry store and is the only one still at large.

Weekly QuizJul 09, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Aerial view of Amazon
Events & AwardsJul 14, 2026
Conference on Mining, Sustainability Kicks Off in NYC

Initiatives in Art and Culture is hosting its 16th annual Gold and Diamond Conference, with the theme of “Resilience.”

Stephanie Gottlieb Casual Carats Lab-Grown Dimond and Silicone Rings
Lab-GrownJul 13, 2026
Stephanie Gottlieb Changes Her Mind on Lab-Grown Diamonds

The designer, who once said she’d never sell lab-grown diamonds, debuted two capsule collections designed to be fun and easy to wear.

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.

File photo of the Venetia Diamond Mine in South Africa
SourcingJul 13, 2026
De Beers Announces Potential Layoffs, 2-Year Production Pause at Venetia

The diamond miner and marketer is undergoing another round of cost-cutting measures ahead of its sale by Anglo American.

JIS sign in convention center lobby
Events & AwardsJul 13, 2026
Registration Opens for JIS Fall 2026 Show

The annual trade-only buying event is slated for Oct. 16-19 in Miami Beach, Florida.

“Elements” bracelet best of show AGTA Spectrum 2025
Events & AwardsJul 13, 2026
AGTA Accepting Entries for Spectrum 2026

AGTA also has announced the lineup of judges for the colored gemstone cutting and jewelry design contest’s various categories.

Arena Club Twilight and Eclipse Time Boxes
TechnologyJul 10, 2026
There’s a New Blind Box for Luxury Watches

Collectibles platform Arena Club’s new Time Boxes could contain a Rolex or Patek Philippe watch.

Jade Trau Constellation Plié Collar
TrendsJul 10, 2026
Jade Trau Creates a Constellation of Diamonds

The “Constellation Plié” collar, our Piece of the Week, features diamonds arranged in a constellation of shining stars.

Former De Beers CFO of Brands and Consumer Markets Shaun Wills
SourcingJul 10, 2026
CFO of De Beers’ Consumer-Facing Division Leaves Company

Shaun Wills joined the company in 2024 and was chief financial officer of the De Beers Brands and Consumer Markets division.

Brilliant Earth watches
WatchesJul 10, 2026
Brilliant Earth Expands Into Watches

In honor of its 20th anniversary, the jewelry brand has released a limited-edition collection of Swiss-made timepieces.

Boucheron Human Being Collection Tattoo Necklace
CollectionsJul 09, 2026
Boucheron’s New High Jewelry Collection Is an Ode to the Human Touch

“Human Being” highlights the similarities and differences between us through five sets of jewelry that celebrate fine craftsmanship.

Baume & Mercier watch
WatchesJul 09, 2026
Damiani Group Finalizes Acquisition of Baume & Mercier

Richemont will continue to provide operational services for the watch brand for a period while the group prepares to integrate it.

Joopiter Logo
AuctionsJul 09, 2026
Pharrell Williams’ Joopiter Hires Former Bonhams Exec to Head New Watch Division

Nate Borgelt will lead the digital auction house and content platform’s new division as head of watches.

Enoch Michael
Events & AwardsJul 09, 2026
Halstead Names 2026 Grant Winner

Enoch Platero, founder and designer behind Enoch Michael, is the first Native American jeweler to win the award.

Karen Fox and Jenna Siegel
Events & AwardsJul 09, 2026
AGS, GIA Name 2026 Beatrice Shipley Scholarship Winner

AGS also announced the recipient of its “Women in Leadership” scholarship.

Kendra Scott
MajorsJul 08, 2026
Kendra Scott Joins ‘Shark Tank’ As Permanent Investor

The founder of the billion-dollar jewelry and lifestyle brand will debut as a full-time “Shark” on the upcoming season of the show.

Hands crossed with rings on
SurveysJul 08, 2026
Signet Jewelers Falls 5 Spots on NRF’s ‘Top 100’ Retailers List

Plus, why retailers should be ready to adjust as the U.S. population may decline this year for the first time since the Great Depression.

René Lalique “Woman Dragonfly With Open Wings” pendant
CrimeJul 08, 2026
Here’s What Thieves Stole From the Lalique Museum

René Lalique’s “Woman Dragonfly With Open Wings” pendant, the first piece the museum acquired, was one of the jewels taken.

Arien Gessner and Moss Makhoulian
MajorsJul 08, 2026
Richline Group Promotes 2 Execs

Arien Gessner and Moss Makhoulian have been elevated into newly created roles.

The Retail Smiths partner and National Jeweler columnist Peter Smith
ColumnistsJul 07, 2026
Peter Smith: Diamond Branding and the Origin Paradox

A podcast prompted Smith to share his views on where origin fits into the natural diamond story and the viability of branded diamonds.

Jewelers of America Impact Initiative Recipients 2026
Events & AwardsJul 07, 2026
JA Announces 2026 Impact Initiative Recipients

The association selected eight recipients for the funding program, which is in its second year.

Zahn Z In Rubies We Clicked
TrendsJul 07, 2026
Amanda’s Style File: Ruby, White and Blue

Whether celebrating America’s 250th birthday or the USA’s World Cup run, July birthstone jewelry can double as a patriotic accessory.

×

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