Asscher|Lab Grown|IGI

1.78ct F SI1 Asscher Lab Grown Diamond

EX • F/SI1 • IGI LG636403843

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG636403843

Diamond specifications and retailer prices

From $592 USD
£466 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $592 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 1.78ct lab-grown asscher diamond

This 1.78ct 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 LG636403843 or 636403843. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.78
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636403843
Dimensions6.73 × 6.53 × 4.47 mm
L/W Ratio1.03
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.73 mm6.53 mm1.78 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636403843
Side View
Table 60.0%Crown 35.1°Girdle: MediumPavilion 39.9°Culet: NoneDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $592 USD|Low: $409 USD|High: $592 USD|Avg: $432 USD
Diamond Quarter
Retailer 2
September 26, 2026
Retailer 2$409 USD
Diamond Quarter$592 USD

7 data points across 2 retailers

1 retailer

B+
Diamond Quarter
1.78SI1FLG432577N · Nov 2
$592 USD
£466 GBP
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B+
1.78ct Asscher
$592 USD