Are both companies' diamonds certified?

ALTR says its diamonds are eligible for GCAL, GIA and IGI grading. Bhazen Diam's lab-grown diamonds are IGI-certified and natural diamonds GIA-certified, with certificates on request.

Does Bhazen Diam sell loose lab-grown diamonds?

We quote certified loose diamonds, natural and lab-grown, to your spec on our Diamonds page. ALTR's published range of loose lab-grown sizes and colours is wider.

Which is better for a lab-grown starter assortment?

Bhazen Diam's 2026 Collection is 975 lab-grown styles with quick ship from New York, and most styles start at one unit, so a store can test before it commits.

Compare · Bhazen Diam vs ALTR

Bhazen Diam vs ALTR:
two ways to buy lab-grown.

ALTR is a New York lab-grown diamond company that grows, cuts and polishes its own stones, designs jewelry, and supplies retailers and brands worldwide. Bhazen Diam makes fine jewelry in its own Surat workshops, with a 975-style lab-grown 2026 Collection that ships quick from New York. Here is how they compare.

Facts checked against each company's published pages on October 28, 2026.

Two different jobs.

ALTR Created Diamonds, based in New York City, describes itself as vertically integrated — designing, growing, cutting, polishing and finishing lab-grown diamonds — and supplies retailers, wholesalers and brands, with collections in more than 250 retailers in 35 countries.

Bhazen Diam: Factory-direct manufacturer: we make the jewelry in our own Surat workshops and sell it ourselves.

Side by side.

Model: ALTRVertically integrated lab-grown diamond grower and jewelry maker, supplying retailers and brands.; Bhazen DiamFactory-direct manufacturer: we make the jewelry in our own Surat workshops and sell it ourselves.
Base: ALTRNew York City.; Bhazen DiamHead office in Toronto; sales office in New York; workshops in Surat.
Stones: ALTRLab-grown (CVD) diamonds from 0.003 to 50 carats, in up to 25 colours.; Bhazen DiamLab-grown diamonds in the 2026 Collection; natural or lab-grown in the made-to-order Design Library.
Certification: ALTRDiamonds eligible for GCAL, GIA and IGI grading; reports SCS-007 sustainability certification.; Bhazen DiamNatural diamonds GIA-certified, lab-grown diamonds IGI-certified, certificates on request.
Range: ALTRBridal, everyday, artisan and couture jewelry, plus loose stones and bespoke commissions.; Bhazen DiamThe 2026 Collection (975 lab-grown styles) and the Design Library (908 made-to-order designs in nine lines), plus jewelry programs and private label.
Metals: ALTRRecycled gold, silver, platinum and specialty alloys.; Bhazen DiamSolid gold in 10KT, 14KT and 18KT.
Minimums: ALTRNot published on the pages we read.; Bhazen DiamOne unit on most styles; a few carry a higher minimum, shown on the piece. Volume pricing at 10, 50 and 200+ units.
Speed: ALTRNot published on the pages we read.; Bhazen DiamFedEx Overnight Priority, fully insured and tracked. In-stock pieces ship the same day, with overnight delivery across Canada and the US.

Bhazen Diam compared with ALTR, from each company's published information as of October 28, 2026.
	ALTR	Bhazen Diam
Model	Vertically integrated lab-grown diamond grower and jewelry maker, supplying retailers and brands.	Factory-direct manufacturer: we make the jewelry in our own Surat workshops and sell it ourselves.
Base	New York City.	Head office in Toronto; sales office in New York; workshops in Surat.
Stones	Lab-grown (CVD) diamonds from 0.003 to 50 carats, in up to 25 colours.	Lab-grown diamonds in the 2026 Collection; natural or lab-grown in the made-to-order Design Library.
Certification	Diamonds eligible for GCAL, GIA and IGI grading; reports SCS-007 sustainability certification.	Natural diamonds GIA-certified, lab-grown diamonds IGI-certified, certificates on request.
Range	Bridal, everyday, artisan and couture jewelry, plus loose stones and bespoke commissions.	The 2026 Collection (975 lab-grown styles) and the Design Library (908 made-to-order designs in nine lines), plus jewelry programs and private label.
Metals	Recycled gold, silver, platinum and specialty alloys.	Solid gold in 10KT, 14KT and 18KT.
Minimums	Not published on the pages we read.	One unit on most styles; a few carry a higher minimum, shown on the piece. Volume pricing at 10, 50 and 200+ units.
Speed	Not published on the pages we read.	FedEx Overnight Priority, fully insured and tracked. In-stock pieces ship the same day, with overnight delivery across Canada and the US.

Where ALTR is the right call.

Loose lab-grown diamonds across a very wide size and colour range, including fancy colours.
A lab-grown supplier with published sustainability certification for your marketing.
Platinum and silver lab-grown pieces, which we do not make.
Bespoke one-off commissions built around a specific lab-grown stone.

Where Bhazen Diam fits better.

A 975-style lab-grown collection with quick ship from New York, and in-stock pieces sent the same day.
Mixing lab-grown and natural: the Design Library is made to order with either.
One-unit minimums on most styles and published volume tiers at 10, 50 and 200+ units.
Quotes built against published spot gold, answered within two hours on weekdays.

Opening an account.

ALTR takes corporate and trade enquiries by email; account terms are not published on the pages we read.

Bhazen Diam's account is a five-minute application for Canadian and US retailers; you sign in straight away and we confirm your business number.

The honest verdict.

Use ALTR for loose lab-grown stones, fancy colours and bespoke commissions.
Use Bhazen Diam for a deep, quick-ship lab-grown collection in solid gold, bought from the workshop that makes it.
Ask both for the same style and compare the landed price, the certificate and how fast it reaches your store.

Today's gold price per gram → Gold value calculator →Price a reorder with us →

Questions, answered straight.

Are both companies' diamonds certified?: ALTR says its diamonds are eligible for GCAL, GIA and IGI grading. Bhazen Diam's lab-grown diamonds are IGI-certified and natural diamonds GIA-certified, with certificates on request.
Does Bhazen Diam sell loose lab-grown diamonds?: We quote certified loose diamonds, natural and lab-grown, to your spec on our Diamonds page. ALTR's published range of loose lab-grown sizes and colours is wider.
Which is better for a lab-grown starter assortment?: Bhazen Diam's 2026 Collection is 975 lab-grown styles with quick ship from New York, and most styles start at one unit, so a store can test before it commits.

Sources

Stuller, Quality Gold, Overnight and ALTR are trademarks of their respective owners. Bhazen Diam is not affiliated with, endorsed by or sponsored by any of them. Facts about each company come from its own published pages and filings, linked on its comparison page, as read on October 28, 2026; their terms can change, so confirm them with the company before you rely on them. Bhazen Diam is a competitor of each, and wrote these pages.

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Bhazen Diam vs ALTR:two ways to buy lab-grown.