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Asscher|Lab Grown|IGI

1.22ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG792653895

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG792653895

Diamond specifications and retailer prices

From £113 GBP
As of November 4, 2026
Save £645 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £758 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.22ct lab-grown asscher diamond

This 1.22ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792653895 or 792653895. Listed at 11 retailers as of November 4, 2026, with prices from £113 to £758, a £645 spread on the same certified stone. Brilliant Earth lists it at £758. 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

1.22
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle43.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792653895
Dimensions5.79 × 5.75 × 3.96 mm
L/W Ratio1.01
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
5.79 mm5.75 mm1.22 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792653895
Side View
Table 71.0%Crown 39.6°Girdle: MediumPavilion 43.9°Culet: NoneDepth 68.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £758 GBP|Low: £113 GBP|High: £1,305 GBP|Avg: £471 GBP|-19.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9£113 GBP
Retailer 11£135 GBP
Retailer 10£257 GBP
Retailer 3£262 GBP
Retailer 7£273 GBP
Retailer 8£327 GBP
Retailer 2£383 GBP
Retailer 6£450 GBP
Retailer 4£516 GBP
Retailer 5£654 GBP
Brilliant Earth£758 GBP
Retailer 12£1,305 GBP

31 data points across 12 retailers

11 retailers£113 GBP to £758 GBP

A
Cheapest Retailer
-
£113 GBP
A
Retailer 2
-
£135 GBP
View
Final sale: no returns
Retailer 3
-
£140 GBP
View
Price last confirmed 42 days ago
B+
Retailer 4
-
£257 GBP
View
Retailer 5
-
£273 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£327 GBP
View
B+
Retailer 7
-
£383 GBP
View
B+
Retailer 8
-
£450 GBP
View
B
Retailer 9
-
£632 GBP
View
B
Retailer 10
-
£654 GBP
View
Most Expensive
B
Brilliant Earth
18729921A · Nov 5
£758 GBP
$1,020 USD
View
10 more retailers have this diamond
Prices start from £113 GBPSave up to £645 GBP

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
1.22ct Asscher
£113 GBP