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

Two of the three suspects in burglary at Queens jeweler’s home
CrimeNov 03, 2025
Men Dressed as Construction Workers Burglarize Jeweler’s Home

The NYPD is looking for three men who stole a safe and jewelry valued at $3.2 million from the home of a jeweler in Jamaica Hills, Queens.

Matthew Rosenheim
MajorsNov 03, 2025
Matthew Rosenheim Takes Over as JA Board Chair

The trade organization also announced its executive committee and five new directors.

Muse’s Have a Heart x Diamonds Do Good Collection on Flaviana Matata
CollectionsNov 03, 2025
Muse’s ‘Have a Heart’ Collab Returns, Now With DDG

The “Have a Heart x Diamonds Do Good” collection is championed by model and humanitarian Flaviana Matata and will benefit her foundation.

20-Under-40-2025-LV.png
Brought to you by
Jewelers of America Aligns New Mission to Create Meaningful Impact for Members

From educational programs, advocacy, and recent MJSA affiliation, Jewelers of America drives progress that elevates businesses of all sizes.

Christies Kashmir sapphire ring
AuctionsNov 03, 2025
Kashmir Sapphire Ring Tops Christie's Online Auction

The ring, set with a nearly 17-carat Kashmir cabochon sapphire, sold for $1 million.

Weekly QuizOct 30, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Heavenly Vices Mother Father Spinner Necklace
TrendsOct 31, 2025
Piece of the Week: A Spinner Fit for ‘Frankenstein’

This “Mother Father” spinner necklace from Heavenly Vices Fine Jewelry draws inspiration from Victorian Era jewelry.

Interpol Stolen Works of Art Database, The Louvre Museum Graphic
CrimeOct 31, 2025
5 More Arrested in Louvre Heist, Jewelry Still Missing

The suspects were rounded up in Paris and its suburbs on Wednesday night, but none of the stolen jewels were recovered with them.

Supplier Spotlight -Recorded-Webinar.png
Brought to you by
Watch: Introducing GIA Jewelry Services

Supplier Spotlight Sponsored by GIA

My Next Question webinar graphic
Recorded WebinarsOct 31, 2025
Watch: How to Master Google Reviews for Your Business

Experts share top tips on how to encourage positive reviews and handle negative feedback.

GIA iD100® Technology
Supplier BulletinOct 30, 2025
Protect Your Customers and Your Business

Sponsored by the Gemological Institute of America

Seattle PD image of Menashe & Sons Jewelers following Aug. 14 smash-and-grab robbery
CrimeOct 30, 2025
29-Year-Old Man Charged in Multiple Seattle-Area Smash and Grabs

The suspect faces charges in the August robbery of Menashe & Sons Jewelers and is accused of committing smash and grabs at two pawn shops.

Alison Lou Lumière Fine Collection On-Model
Lab-GrownOct 30, 2025
Alison Lou’s New Collection Uses Lab-Grown Diamonds and Resin

The “Lumière Fine” collection was born from designer Alison Chemla’s interest in the transformative power of light.

Buddha Mama gold skull pave huggies
TrendsOct 30, 2025
Amanda’s Style File: A Haunted Halloween

Show off your spooky side with these 12 festive jewels.

Is This Love That I’m Feeling event imagery
Events & AwardsOct 30, 2025
Jewelers Mutual to Host Jewelry Panel at Frazier History Museum

The “Brilliant & Beyond” panel coincides with the “Love & Marriage” exhibition curated by Davis Jewelers in Louisville, Kentucky.

Stock image of person holding shopping bags
Events & AwardsOct 29, 2025
October Brings Little Change to Consumer Confidence

Consumers are feeling more optimistic about their present situation while the short-term future remains a little scary.

Couture show
Events & AwardsOct 29, 2025
Couture Partners With Time to Watches

The company, which organizes a watch show in Geneva every spring, will bring a selection of watch brands to the 2026 Couture show in Vegas.

The Modern Guide to Vintage Jewelry by Beth Bernstein
TrendsOct 29, 2025
Beth Bernstein Releases Vintage Jewelry Guide

“The Modern Guide to Vintage Jewellery” follows the evolution of jewelry design from the ‘30s to the ‘80s with buying and styling advice.

Gem Awards 2025 at Cipriani New York
Events & AwardsOct 28, 2025
Meet the 2026 Gem Award Nominees

Notable jewelry designers, members of the press, and retailers are up for an award at next year’s gala.

Graphic for Jewelers of America’s 2025 State of the Industry webinar
Recorded WebinarsOct 28, 2025
Watch: The State of the Jewelry Industry

Leaders from Jewelers of America and National Jeweler discuss the gold price, tariffs, and more in this one-hour webinar.

Eriness One of One Collection Rings and Necklace
CollectionsOct 28, 2025
Eriness Reflects on Life in ‘One of One’ Collection

After experiencing motherhood, growth, and loss, founder and designer Erin Sachse has created 10 irreplaceable jewels.

Napoleon’s diamond brooch and a pearl and diamond hair ornament
AuctionsOct 27, 2025
Napoleon Left This Brooch Behind, And Now It’s Up For Auction

It is part of Sotheby’s “Royal & Noble Jewels” sale along with an ornate hair ornament and an old mine-cut light pink diamond ring.

Marie Louise’s emerald necklace and earrings stolen in the heist at the Louvre Museum
CrimeOct 27, 2025
Arrests Made in Louvre Jewel Heist

One of the individuals was apprehended at the airport as he was trying to flee the country.

Holiday shoppers in Target
MajorsOct 27, 2025
Target to Cut 1,800 Corporate Jobs

The retailer, which has faced struggling sales in recent quarters, is looking to streamline its operations.

Hill Management Group
Events & AwardsOct 27, 2025
Hill Management Group Hired to Help Atlanta Jewelry Show

Hill Management Group will oversee, market, and produce next year’s spring show.

Bonhams New Bond Street London flagship
AuctionsOct 24, 2025
Bonhams Under New Ownership, Top Executives Replaced

London-based investment firm Pemberton Asset Management acquired the auction house for an undisclosed amount.

De Beers Diamond View Zoom machine with monitor
GradingOct 24, 2025
DMIA to Hold Diamond Testing Instrument Demo

The workshop will give attendees the chance to try out and ask questions about three different diamond verification instruments.

Two brooches stolen in the October 2025 heist at the Louvre Museum in Paris
CrimeOct 24, 2025
Video Emerges of Louvre Jewelry Robbers Fleeing the Scene

The footage shows two of the jewelry heist suspects descending from the second floor of the museum and then escaping via scooter.

×

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