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Asscher|Lab Grown|IGI

1.50ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG749577880

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG749577880

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of October 30, 2026
Save £1,136 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,269 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.5ct lab-grown asscher diamond

This 1.5ct lab-grown asscher sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG749577880 or 749577880. Listed at 16 retailers as of October 30, 2026, with prices from £133 to £1,269, a £1,136 spread on the same certified stone. Brilliant Earth lists it at £1,269. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle45.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749577880
Dimensions6.27 × 6.26 × 4.17 mm
L/W Ratio1.00
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
6.27 mm6.26 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749577880
Side View
Table 74.0%Crown 39°Girdle: STK-THKPavilion 45.9°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
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: £1,269 GBP|Low: £127 GBP|High: £1,269 GBP|Avg: £430 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12£127 GBP
Retailer 10£164 GBP
Retailer 11£164 GBP
Retailer 5£285 GBP
Retailer 3£292 GBP
Retailer 2£295 GBP
Retailer 7£297 GBP
Retailer 4£414 GBP
Retailer 9£424 GBP
Retailer 8£675 GBP
Retailer 6£772 GBP
Brilliant Earth£1,269 GBP

45 data points across 12 retailers

16 retailers£133 GBP to £1,269 GBP

Retailer 1
-
£127 GBP
$170 USD
Price last confirmed 29 days ago
A
Retailer 2
-
£133 GBP
$178 USD
View
Retailer 3
-
£154 GBP
$206 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
£164 GBP
$220 USD
View
Retailer 5
-
£164 GBP
$220 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
£164 GBP
$220 USD
View
A
Retailer 7
-
£285 GBP
€364 EUR
View
B+
Retailer 8
-
£292 GBP
$391 USD
View
A
Retailer 9
-
£295 GBP
View
A
Retailer 10
-
£297 GBP
View
B+
Retailer 11
-
£414 GBP
$555 USD
View
B+
Retailer 12
-
£424 GBP
$568 USD
View
Retailer 13
-
£528 GBP
$708 USD
View
Price last confirmed 30 days ago
Retailer 14
-
£675 GBP
$905 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
£772 GBP
View
Most Expensive
B
Brilliant Earth
19001979A · Oct 30
£1,269 GBP
$1,700 USD
View
15 more retailers have this diamond
Prices start from £133 GBPSave up to £1,136 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
1.50ct Asscher
£133 GBP