Find your diamond
Find your jewelry
shape
carat
color
clarity

AGS to Resume Grading Lab Diamonds

Ada Diamonds CEO

Rough_Rock
Trade
Joined
Jan 8, 2020
Messages
50
Exciting news this week that AGS is restarting their grading of man-made diamonds.

It's a little known fact, but AGS used to grade lab diamonds up until 2013.

 

anangel

Brilliant_Rock
Joined
Aug 1, 2008
Messages
601
Neat! Do you have opinions on whether they are stricter on color and clarity grading than IGI?
 

denverappraiser

Ideal_Rock
Trade
Joined
Jul 21, 2004
Messages
8,807
AGS notes that its reports contain these features:

  • Unique color and clarity grading nomenclature, enhanced educational information, and a focus on precision cutting.
  • The only one of its kind offering AGS Ideal laboratory-grown diamonds.
  • Two laser inscriptions, which will clearly identify that the diamond is laboratory-grown.
  • Growth details regarding the laboratory-grown diamond.
Any idea if the 'unique nomenclature' is the 'regular' AGS grading scales or if it's unique to LG stones?

I'm also wondering if the 'growth details' means they will be telling if CVD vs HPHT.
 

kb1gra

Brilliant_Rock
Joined
Jul 6, 2012
Messages
928
Will these be subject to the same cut grading eg will be available for fancy shapes?
 

123ducklings

Shiny_Rock
Joined
Jun 10, 2020
Messages
271
AGS notes that its reports contain these features:

  • Unique color and clarity grading nomenclature, enhanced educational information, and a focus on precision cutting.
  • The only one of its kind offering AGS Ideal laboratory-grown diamonds.
  • Two laser inscriptions, which will clearly identify that the diamond is laboratory-grown.
  • Growth details regarding the laboratory-grown diamond.
Any idea if the 'unique nomenclature' is the 'regular' AGS grading scales or if it's unique to LG stones?

I'm also wondering if the 'growth details' means they will be telling if CVD vs HPHT.
I’m interested about this too; I’d love to see the grading account for MMD-specific issues like stria and brown (rather than yellow) color tones.
 

denverappraiser

Ideal_Rock
Trade
Joined
Jul 21, 2004
Messages
8,807
They're in the prototype phase at the moment. Service will be available to beta-test type jewelers in September with a broad roll-out sometime after that.
 

Ada Diamonds CEO

Rough_Rock
Trade
Joined
Jan 8, 2020
Messages
50
I've been in touch with the CEO of AGS today, and I'll be speaking with her and their head of grading next week.

Neat! Do you have opinions on whether they are stricter on color and clarity grading than IGI?
I find IGI to be stricter than GCAL in most cases, and have seen IGI be stricter than GIA. This boogeyman about IGI loosely grading may be true in natural, but it's not true in lab grown.

I have no data on AGS, as the only diamonds that AGS graded were 2013 and older, and all mid-near-colorless.

I'm also wondering if the 'growth details' means they will be telling if CVD vs HPHT.
I believe so, yes. I don't know if they'll discuss post growth treatment, as this is a matter of interpretation of when the growth cycle is finished and what defines treatment. IE LPHT is an option, but it's not really a post-growth.

Do you happen to know when they will star grading?
A few of my growers have goods in motion to AGS now, hoping to have the results relatively soon. Given that there's not a ton of goods coming from Surat (mined or man-made) the grading labs are not oversaturated these days.

It's a digital-only service. No fancy report cover or laminated report although I suppose you could laminate one yourself if you want.
I believe it's $30 for the fancy laminated report if the submitter wants to purchase one. Dunno if they'll offer that for lab diamonds. Will find out!
 
Be a part of the community It's free, join today!
    An Excellent K Color Graded Diamond
    An Excellent K Color Graded Diamond
    Astounding AVR
    Astounding AVR
    Cushion Cut- Three Ways
    Cushion Cut- Three Ways

Need Something Special?

Get a quote from multiple trusted and vetted jewelers.

Holloway Cut Advisor



Diamond Eye Candy

Click to view full-size image.
Top