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Asscher|Lab Grown|IGI

1.23ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG830622230

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG830622230

Diamond specifications and retailer prices

From £298 GBP
$399 USD
As of October 30, 2026
Save £2,135 GBP (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,433 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.23ct lab-grown asscher diamond

This 1.23ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830622230 or 830622230. Listed at 19 retailers as of October 30, 2026, with prices from £298 to £2,433, a £2,135 spread on the same certified stone. Brilliant Earth lists it at £2,433. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830622230
Dimensions5.91 × 5.88 × 3.95 mm
L/W Ratio1.01
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
5.91 mm5.88 mm1.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830622230
Side View
Table 63.0%Crown 35.3°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 67.2%

Caratlytics Score

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A+
Exceptional
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: Oct 30
Current: £2,433 GBP|Low: £298 GBP|High: £2,433 GBP|Avg: £847 GBP
Brilliant Earth
Retailer 2
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Retailer 19
October 30, 2026
Retailer 4£298 GBP
Retailer 5£334 GBP
Retailer 18£334 GBP
Retailer 7£369 GBP
Retailer 8£369 GBP
Retailer 15£481 GBP
Retailer 12£583 GBP
Retailer 19£585 GBP
Retailer 2£607 GBP
Retailer 3£629 GBP
Retailer 13£635 GBP
Retailer 17£889 GBP
Retailer 6£1,176 GBP
Retailer 9£1,188 GBP
Retailer 11£1,215 GBP
Retailer 16£1,351 GBP
Retailer 10£1,355 GBP
Retailer 14£1,446 GBP
Brilliant Earth£2,433 GBP

37 data points across 19 retailers

19 retailers£298 GBP to £2,433 GBP

A+
Cheapest Retailer
-
£298 GBP
$399 USD
A
Retailer 2
-
£334 GBP
$447 USD
View
Final sale: no returns
A
Retailer 3
-
£334 GBP
$447 USD
View
A
Retailer 4
-
£369 GBP
$495 USD
View
A
Retailer 5
-
£369 GBP
$495 USD
View
A
Retailer 6
-
£481 GBP
$645 USD
View
A
Retailer 7
-
£583 GBP
€744 EUR
View
A
Retailer 8
-
£585 GBP
$784 USD
View
A
Retailer 9
-
£607 GBP
View
A
Retailer 10
-
£629 GBP
$843 USD
View
B+
Retailer 11
-
£635 GBP
ZAR 13,747 ZAR
View
B+
Retailer 12
-
£889 GBP
$1,191 USD
View
B+
Retailer 13
-
£1,176 GBP
SGD 2,130 SGD
View
B+
Retailer 14
-
£1,188 GBP
$1,592 USD
View
B+
Retailer 15
-
£1,215 GBP
$1,628 USD
View
Retailer 16
-
£1,351 GBP
$1,810 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
£1,355 GBP
$1,815 USD
View
B+
Retailer 18
-
£1,446 GBP
View
Most Expensive
B
Brilliant Earth
21433960A · Oct 30
£2,433 GBP
$3,260 USD
View
18 more retailers have this diamond
Prices start from £298 GBPSave up to £2,135 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+
1.23ct Asscher
£298 GBP