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Asscher|Lab Grown|IGI

1.64ct F SI1 Asscher Lab Grown Diamond

ID • F/SI1 • IGI LG604300107

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG604300107

Diamond specifications and retailer prices

From $1,083 USD
As of November 5, 2026
Save $87 USD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,170 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG604300107 or 604300107. Listed at 2 retailers as of November 4, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604300107
Dimensions6.44 × 6.41 × 4.22 mm
L/W Ratio1.00
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
6.44 mm6.41 mm1.64 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604300107
Side View
Table 64.0%Crown 34.2°Girdle: THN-MEDPavilion 41.1°Culet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $1,170 USD|Low: $364 USD|High: $1,800 USD|Avg: $986 USD|-35.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4$364 USD
Retailer 2$466 USD
Retailer 3$709 USD
Retailer 6$1,120 USD
Brilliant Earth$1,170 USD
Retailer 5$1,770 USD

2 data points across 6 retailers

2 retailers$1,083 USD to $1,170 USD

B
Cheapest Retailer
-
$1,083 USD
Most Expensive
B
Brilliant Earth
9239320B · Nov 4
$1,170 USD
View
1 more retailer has this diamond
Prices start from $1,083 USDSave up to $87 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.

B
1.64ct Asscher
$1,083 USD