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

Technology Therapy Group founder and CEO Jennifer Shaheen
ColumnistsSep 15, 2026
The Levels Your Website Must Clear Before AI Recommends You

Jennifer Shaheen compares this new era of AI-powered SEO to a video game: your website must clear one level before advancing to the next.

Armadani Retail Support Program Marketing Imagery
IndependentsSep 15, 2026
Armadani Launches Retail Support Program for Holiday Season

The program highlights “Made in Italy” fine jewelry with digital merchandising, sales education, and local marketing support.

The Retail Smiths Principal Sherry Smith
ColumnistsSep 14, 2026
Sherry Smith: Stop Waiting for December to Save Your Christmas

The stores that have a great December are the ones that made good decisions in August, September, and October, Sherry Smith writes.

Cover.jpg
Brought to you by
Your Piece Could Be the One Editors Talk About

Submit your pieces for a chance to win in this year's competition.

The “Pragnell Kimberley Sunshine Diamond,” 22.09 carats and fancy yellow
AuctionsSep 14, 2026
22 Carats of ‘Sunshine’ Are Up for Auction

The 22.09-carat fancy yellow “Pragnell Kimberley Sunshine Diamond” is part of the fall jewelry sale at Heritage Auctions.

Weekly QuizSep 10, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Greenwich St. Jewelers Adornos photography exhibit
IndependentsSep 14, 2026
Greenwich St. Jewelers to Unveil Photography Exhibition

“Adornos: Jewelry, Memory & What We Pass Down” honors the jewelry’s importance to New York City’s Latine communities.

Stock image of rough emeralds mined by Gemfields
SourcingSep 14, 2026
Gemfields Sells All Lots at First Emerald Auction in 9 Months

The company’s managing director of sales said the results demonstrate “continued strong demand for commercial-quality emeralds.”

1872-x-1052-July-ad (1).png
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying Events

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

Kealeboga Pule and Black Coffee
SourcingSep 14, 2026
Diamonds Do Good Pledges Support for Eye Care Program

The nonprofit awarded a grant to the Gift of Sight initiative spearheaded by South African musician Black Coffee.

Greenwich St. Jewelers Scattered Sapphire Cigar Band
CollectionsSep 11, 2026
A Sapphire ‘Stardust’ Ring From Greenwich St. Jewelers

The Latine-owned New York jeweler is marking two milestones this year: its 50th anniversary and the 25th anniversary of the 9/11 attacks.

Make A Wish East Tennessee
MajorsSep 11, 2026
The Wishing Place by JTV Opens

The jewelry retail broadcast network has sponsored a new space for Make-A-Wish East Tennessee on its campus in Knoxville.

The Edge logo
Events & AwardsSep 11, 2026
The Edge Awards Scholarships to 2 Young Jewelry Professionals

The recipients were recognized at the 24 Karat Club of the Southeastern United States’ annual banquet.

Steven Lagos and Keith Rolfe
MajorsSep 10, 2026
Lagos Founder Steven Lagos Steps Down as CEO

Keith Rolfe, CFO and COO of Lagos, is now at the jewelry brand’s helm while Steven takes on the role of executive chairman.

Alberto Perez-Elias mugshot
CrimeSep 10, 2026
FBI Offers $50K Reward for ‘Most Wanted’ Fugitive in $1M Jewelry Heist

Alberto Perez-Elias is one of four men charged in the armed robbery of a Cape Coral, Florida, jewelry store and remains at large.

Kat Florence Paraibas
AuctionsSep 10, 2026
Massive Matched Pair of Paraíba Tourmalines Head to Sotheby’s

The “Kat Florence Luminas” will be offered together as one lot and could fetch up to $637,000.

AGTA logo
SourcingSep 10, 2026
AGTA Announces 4 Newly Elected Directors

Four directors were elected to the AGTA board and will serve three-year terms beginning in February.

New Julien’s Auctions CEO Ken Citron
AuctionsSep 10, 2026
Former Sotheby’s, Christie’s Exec Appointed CEO of Julien’s Auctions

Ken Citron joins the celebrity memorabilia-focused auction house ahead of its first week-long series of events in Abu Dhabi.

Blue Nile Ellipse earrings
FinancialsSep 09, 2026
Signet Jewelers to ‘Double Down’ on Blue Nile Amid Strong Sales

The jewelry retailer said it sees opportunity at higher price points, particularly in natural diamonds for bridal and fashion.

Sarah Leonard Fine Jewelers family
IndependentsSep 09, 2026
Sarah Leonard Fine Jewelers Closes After Nearly 80 Years

The Los Angeles-based, family-owned jeweler was founded by Lenny and Sunny Friedman in 1946.

Fura rubies
SourcingSep 09, 2026
Fura Gems Notes ‘Remarkable’ Interest in Larger Rubies at Latest Sale

The auction, held in Bangkok, was 96 percent sold by lot, with nearly 411,000 carats of Mozambiquan rubies sold.

Stuller Fine Jewelry 2027-2028 catalog
MajorsSep 09, 2026
Stuller’s Latest Catalog Includes Its New Demi-Fine Collection

Fine Jewelry 2027-2028 has more than 900 new styles, including silver, gold-filled, gold-plated sterling silver, and vermeil jewelry.

2018_Stuller-lab-grown.jpg
Policies & IssuesSep 09, 2026
8 Key Changes the FTC Made to the Jewelry Guides: A Refresher

Learn more about the new terms for lab-grown diamonds and composite gemstones, and the major changes in store for precious metals jewelry.

Frederick (Ricky) Wilkinson Bromberg
IndependentsSep 08, 2026
Ricky Bromberg, Longtime President of Bromberg & Co., Dies at 67

Bromberg is remembered as a Southern gentleman who always wore a suit and tie and treated others with kindness.

Zahn Z Zaha rainbow sapphire ring
TrendsSep 08, 2026
Amanda’s Style File: A Hot Take on September’s Birthstone

With high durability and a wide range of colors to choose from, sapphires may be the ultimate birthstone, Gizzi claims.

The Retail Smiths principal and National Jeweler columnist Peter Smith
ColumnistsSep 08, 2026
Peter Smith: Humor Is No Laughing Matter

Laughter is often considered a distraction in the workplace, but it has benefits for both staff and management, Peter Smith writes.

Gretchen Koback Pursel
MajorsSep 08, 2026
Former Tiffany & Co. Exec Joins Exemplar Luxury Group

Gretchen Koback Pursel is the new chief people officer at the company formerly known as Saks Global.

Rendering of renovated Orloff Jewelers store
IndependentsSep 04, 2026
Orloff Jewelers Will Soon Unveil a Bigger, Better Location

The California jeweler is renovating its store in Fresno, with plans to show off the new space in December.

×

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