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Asscher|Lab Grown|IGI

1.00ct E FL Asscher Lab Grown Diamond

ID • E/FL • IGI LG840634920

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG840634920

Diamond specifications and retailer prices

From £208 GBP
$277 USD
As of October 27, 2026
Save £1,379 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,588 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634920 or 840634920. Listed at 18 retailers as of October 27, 2026, with prices from £208 to £1,588, a £1,379 spread on the same certified stone. Brilliant Earth lists it at £1,588. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634920
Dimensions5.54 × 5.52 × 3.56 mm
L/W Ratio1.00
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
5.54 mm5.52 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634920
Side View
Table 66.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £469 GBP|Low: £208 GBP|High: £1,185 GBP|Avg: £582 GBP|-1.3%
Retailer 1
Retailer 2
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Retailer 17
October 29, 2026
Retailer 8£208 GBP
Retailer 5£237 GBP
Retailer 16£259 GBP
Retailer 10£275 GBP
Retailer 15£376 GBP
Retailer 14£427 GBP
Retailer 3£436 GBP
Retailer 2£440 GBP
Retailer 11£444 GBP
Retailer 12£453 GBP
Retailer 1£469 GBP
Retailer 6£766 GBP
Retailer 13£795 GBP
Retailer 4£869 GBP
Retailer 9£960 GBP
Retailer 7£1,027 GBP
Retailer 17£1,038 GBP

14 data points across 17 retailers

18 retailers£208 GBP to £1,588 GBP

A
Cheapest Retailer
-
£208 GBP
$277 USD
A
Retailer 2
-
£237 GBP
$315 USD
View
Final sale: no returns
A
Retailer 3
-
£259 GBP
$344 USD
View
A
Retailer 4
-
£275 GBP
View
A
Retailer 5
-
£376 GBP
$500 USD
View
A
Retailer 6
-
£427 GBP
$568 USD
View
A
Retailer 7
-
£436 GBP
$579 USD
View
A
Retailer 8
-
£440 GBP
$584 USD
View
A
Retailer 9
-
£444 GBP
ZAR 9,538 ZAR
View
A
Retailer 10
-
£453 GBP
View
A
Retailer 11
-
£469 GBP
€593 EUR
View
B+
Retailer 12
-
£766 GBP
SGD 1,375 SGD
View
B+
Retailer 13
-
£795 GBP
$1,056 USD
View
B+
Retailer 14
-
£869 GBP
$1,155 USD
View
B
Retailer 15
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£960 GBP
$1,275 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
£1,027 GBP
$1,365 USD
View
B+
Retailer 17
-
£1,038 GBP
View
Most Expensive
B
Brilliant Earth
21861714A · Oct 28
£1,588 GBP
$2,110 USD
View
17 more retailers have this diamond
Prices start from £208 GBPSave up to £1,379 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
1.00ct Asscher
£208 GBP