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Asscher|Lab Grown|IGI

1.64ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG519228955

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG519228955

Diamond specifications and retailer prices

From $352 USD
As of November 6, 2026
Save $809 USD (70%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,161 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.64ct lab-grown asscher diamond

This 1.64ct lab-grown asscher sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519228955 or 519228955. Listed at 4 retailers as of November 2, 2026, with prices from $352 to $1,161, a $809 spread on the same certified stone. MOH London lists it at $1,161. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.64
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519228955
Dimensions6.45 × 6.44 × 4.35 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.45 mm6.44 mm1.64 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519228955
Side View
Table 63.0%Crown 25°Girdle: MediumPavilion 40.6°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,161 USD|Low: $352 USD|High: $1,374 USD|Avg: $739 USD|-14.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$352 USD
Retailer 2$541 USD
Retailer 5$546 USD
Retailer 4$1,102 USD
MOH London$1,161 USD

36 data points across 5 retailers

4 retailers$352 USD to $1,161 USD

B+
Cheapest Retailer
-
$352 USD
A
Retailer 2
-
$541 USD
View
B
Retailer 3
-
$1,102 USD
View
Most Expensive
B
MOH London
LG519228955 · Nov 2
$1,161 USD
£914 GBP
View
3 more retailers have this diamond
Prices start from $352 USDSave up to $809 USD

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.

A
1.64ct Asscher
$352 USD