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Asscher|Lab Grown|IGI

1.66ct G VS1 Asscher Lab Grown Diamond

GD • G/VS1 • IGI LG592318813

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG592318813

Diamond specifications and retailer prices

From $825 USD
£649 GBP
As of November 2, 2026
2 retailers carry this diamond
Most expensive: $825 USD at Diamond Quarter
View at Diamond Quarter

About this 1.66ct lab-grown asscher diamond

This 1.66ct lab-grown asscher sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG592318813 or 592318813. Listed at 2 retailers as of November 2, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.66
Carat
G
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle44.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592318813
Dimensions6.51 × 6.50 × 4.39 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.51 mm6.50 mm1.66 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592318813
Side View
Table 65.0%Crown 40.6°Girdle: MediumPavilion 44.3°Culet: NoneDepth 67.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $449 USD|Low: $144 USD|High: $2,330 USD|Avg: $969 USD|-39.4%
Retailer 1
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Retailer 6
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Retailer 14
August 6, 2026
Retailer 8$144 USD
Retailer 7$188 USD
Retailer 1$449 USD
Retailer 6$490 USD
Retailer 10$522 USD
Retailer 9$584 USD
Retailer 11$617 USD
Retailer 2$707 USD
Retailer 14$961 USD
Retailer 12$1,143 USD
Retailer 4$1,156 USD
Retailer 13$1,189 USD
Retailer 3$1,192 USD
Retailer 5$2,150 USD

72 data points across 14 retailers

2 retailers

Retailer 1
-
$449 USD
Price last confirmed 9 days ago
Most Expensive
B
Diamond Quarter
1.66VS1GLG137727N · Nov 2
$825 USD
£649 GBP
View
1 more retailer has this diamond

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.66ct Asscher
$825 USD