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Asscher|Lab Grown|IGI

4.02ct F SI1 Asscher Lab Grown Diamond

ID • F/SI1 • IGI LG12690820

Shape and cutting style on the report: Square emerald

Certificate IGI LG12690820

Diamond specifications and retailer prices

From £1,818 GBP
$2,440 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: £1,818 GBP at Rare Carat
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 Rare Carat

About this 4.02ct lab-grown asscher diamond

This 4.02ct lab-grown asscher sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12690820 or 12690820. Listed at a single retailer as of November 1, 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

4.02
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12690820
Dimensions8.90 × 8.68 × 5.66 mm
L/W Ratio1.03
Culet sizeNone
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
8.90 mm8.68 mm4.02 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12690820
Side View
Table 62.5%Crown 35.5°Girdle: ThickPavilion 38.6°Culet: NoneDepth 65.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £1,818 GBP|Low: £1,818 GBP|High: £4,799 GBP|Avg: £3,316 GBP|-1.4%
Rare Carat
Retailer 2
October 19, 2026
Rare Carat£1,818 GBP
Retailer 2£4,799 GBP

3 data points across 2 retailers

1 retailer

B
Rare Carat
LGDAS400-00002 · Nov 1
£1,818 GBP
$2,440 USD
View

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B
4.02ct Asscher
£1,818 GBP