Not all lab-grown diamonds are created equal. The industry wants you to think they are because it is easier to sell you something average when you do not know what to look for.

This is the article that changes that.

Everyone Is Lowering Their Prices — And Their Quality Along With It

The lab-grown diamond market has turned into a race to the bottom.

Jewelers are undercutting each other to win the sale and lowering their quality standards to make the numbers work. Consumers are shopping on price alone. And on marketplaces like Amazon, some sellers are passing off moissanite as lab-grown diamonds, banking on the fact that most buyers cannot tell the difference until it is too late.

When price becomes the only competition, something always gets sacrificed. And that something is almost always quality.

Almost every jeweler carries VS clarity and F color as standard now. The grades that used to separate premium from average have become the baseline. On paper the listings look nearly identical and the prices are starting to match.

So if everyone is selling the same grades, why do some diamonds sparkle and others look flat under natural light?

Because the certificate only tells part of the story and the industry is counting on you not knowing the rest.

What the Certificate Does Not Tell You

Shopping for a lab-grown diamond today means seeing solid grades almost everywhere. Those grades have become the baseline, the minimum most buyers expect.

But here is what never makes it onto that certificate:

• Whether the diamond has BGM undertones — brown, grey, or milky hues that kill brilliance and are almost never disclosed
• How precisely the diamond was cut — two diamonds with identical grades can look completely different based on cutting quality
• Who made it and how — whether a trained gemologist ever evaluated it before it was set
• What the setting is actually made of — and whether the gold quality matches the diamond quality

A certificate is a starting point. Premium quality is everything that happens around it.

 

The BGM Problem Nobody In This Industry Wants to Talk About

 

BGM stands for Brown, Grey, and Milky, undertones that exist inside lab-grown diamonds that grading reports simply do not capture.

A diamond can carry an excellent color grade on paper and still have a brown or grey undertone that makes it look lifeless in natural light. You will not see it in a studio photo. You will not find it on the certificate.

 

You will see it the moment you step outside.

 

This is the single biggest quality gap in the lab-grown diamond market today and almost no brand addresses it.

At Karaters every diamond is hand-screened for BGM before it is ever set. If it does not pass that screening it does not move forward. The grade alone is never enough.

 

Two Diamonds. Same Certificate. Not the Same Piece.

 

This is the conversation the industry avoids having with you.

Two tennis necklaces. Same color grade. Same clarity grade. Both listed as 14K gold. On paper they are identical.

 

In person they are not even close.

 

The diamond grade gets you in the door. Everything else determines whether the piece actually lives up to it.

 

Why Where Your Jewelry Is Made Matters

Most lab-grown diamond jewelry sold online comes from high-volume overseas manufacturers where speed matters more than precision. BGM stones slip through. Prongs get set unevenly. Gold gets thinned out to protect margins. Nobody is looking at your piece individually because nobody has the time.

Karaters does not source from cheap overseas manufacturers.

 

Every piece is handcrafted in Los Angeles' Historic Jewelry District by skilled craftsmen working on individual pieces, not production lines. That means:

1. Every stone is inspected before setting — not after
2. Prong placement is precise — diamonds stay secure for life
3. Quality control happens at every stage — not just at the end
4. No batch processing — each piece is treated as the only piece

A Note On Certification — Not All IGI Is Equal

You will see IGI certified on listings across the entire lab-grown diamond market. What most brands do not tell you is that IGI certification alone does not guarantee premium quality.

The certificate tells you the grade. It does not tell you:

• Whether the diamond has BGM undertones
• How the diamond performs under natural light versus studio lighting
• Whether anyone with real gemological training physically evaluated the stone before it was set

 At Karaters every diamond is hand-screened beyond what the certificate requires. IGI certification is the starting point, not the finish line.

 

Stop Chasing the Cheapest Price — Here Is Why It Will Cost You More

 

This is the part of the conversation most brands in this space avoid entirely.

A growing number of lab-grown diamond brands have built their entire business model around one thing, being the cheapest option in the room. Low prices, high volume, minimal quality control. It works as a marketing strategy because price is the easiest thing to compete on.

But cheap pricing in fine jewelry always comes at a cost and that cost is almost always quality.

Here is what happens when a brand prioritizes price above everything else:

• BGM diamonds make it into settings because screening takes time and time costs money
• Cut quality gets sacrificed because precision cutting costs more than factory standard
• Gold gets thinned or hollowed to protect margins without changing the listing
• Gemologist oversight disappears because it adds to the cost per piece
• You end up with a piece that looks slightly off and you can never quite explain why

The irony is that buyers who chase the lowest price often end up spending more, replacing pieces that bend, lose stones, or simply never looked as good as they expected.

A premium lab-grown diamond is not expensive because of a brand name. It is priced correctly because of what went into making it.

When you buy from Karaters you are not paying for marketing. You are paying for BGM screening, Los Angeles craftsmanship, trained gemologist oversight, and solid gold construction. Every dollar has a reason behind it.

 

What Premium Actually Means at Karaters

 

It is not just about the grade on the certificate. It is about every decision made before and after that certificate was issued.

✓ Top color and clarity grades — faces up white and brilliant in every lighting condition

✓ BGM-free — every stone hand-screened, no exceptions

✓ Excellent cut only — maximum light return and sparkle

✓ Solid 14K or 18K gold — never plated, never hollow

✓ IGI certified — with screening that goes beyond what the certificate requires

✓ Handcrafted in Los Angeles — precision built into every piece

✓ Non-flip design — tennis necklaces that stay flat on your neck all day

 

Who This Is For

Premium Lab-Grown at Karaters is for the buyer who:

• Has done the research and knows that grades alone do not tell the full story
• Wants a piece that performs — not just one that looks good on a spec sheet
• Is buying something that lasts — an engagement ring, a tennis necklace, a piece passed down
• Expects full transparency — on BGM, craftsmanship, and material quality
• Is done settling for jewelry that looks slightly off and they can never explain why

 

Frequently Asked Questions

What is a premium lab-grown diamond?

A premium lab-grown diamond goes beyond what the certificate shows. It means top color and clarity grades, no BGM undertones, an excellent cut verified by trained gemologists, set in solid gold with individual quality control at every stage. Most lab-grown diamonds on the market meet the grade requirements. Very few meet all of these standards simultaneously.

Where can I buy premium lab-grown diamonds?

Karaters is one of the few brands that applies a true premium standard to every piece. BGM screening, trained gemologist oversight, Los Angeles handcrafting, and solid gold construction. Shop the full collection of premium lab-grown diamond tennis necklaces and engagement rings directly at Karaters.com.

Why should I not just buy the cheapest lab-grown diamond I can find?

Because price is the one thing that is easy to see before you buy and quality is the one thing that is hard to see until after. Brands that compete purely on price cut corners somewhere, and those corners almost always involve BGM screening, cut quality, gold construction, or gemologist oversight. A piece that looks slightly dull or feels slightly off is almost always the result of one of those compromises.

If two diamonds have the same grade why do they look different?

The certificate measures specific characteristics but does not capture BGM undertones, cutting precision beyond grade thresholds, or how a diamond interacts with light in real-world conditions. Two diamonds with identical grades from different sources can look noticeably different in person.

What is BGM and how do I know if my diamond has it?

BGM stands for Brown, Grey, and Milky — undertones not captured on grading reports. The only way to identify it is physical inspection under multiple lighting conditions by someone trained to spot it. At Karaters this happens on every single stone before it is set.

Is not all IGI certification the same?

No. IGI certification confirms the grade but does not confirm that the diamond is BGM-free, that it was cut to the highest precision, or that it was physically evaluated by a trained gemologist beyond the standard grading process. The certificate is the floor, not the ceiling.

Why does gold quality matter if the diamond is the main feature?

Because the setting determines how long the diamond stays secure and how the piece holds up over time. Solid 14K gold maintains its integrity for life. Thin or hollow settings bend, break prongs, and lose stones. The diamond is only as good as what holds it.

Is handcrafted jewelry actually better or is it just a marketing term?

For fine jewelry it makes a meaningful difference. Handcrafted means individual attention at every stage including stone inspection, prong setting, and gold construction. Mass produced means batch processing where individual pieces are never evaluated on their own merits.

 

The Bottom Line

A good grade on a certificate is the starting point, not the finish line.

The lab-grown diamond market is full of brands competing on price. We compete on quality. BGM screening. Los Angeles craftsmanship. Trained gemologist oversight. Solid gold construction. Non-flip engineering.

That is the Karaters standard. It is why our diamonds do not just grade well.

They look it.

 

Shop Premium Lab-Grown Diamond Tennis Necklaces at Karaters Shop Premium Lab-Grown Engagement Rings at Karaters