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Asscher|Lab Grown|IGI

1.53ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG510158303

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG510158303

Diamond specifications and retailer prices

From £149 GBP
$200 USD
As of November 1, 2026
Save £679 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £828 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.53ct lab-grown asscher diamond

This 1.53ct 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 LG510158303 or 510158303. Listed at 10 retailers as of October 30, 2026, with prices from £149 to £828, a £679 spread on the same certified stone. Brilliant Earth lists it at £828. 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

1.53
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG510158303
Dimensions6.35 × 6.29 × 4.14 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
6.35 mm6.29 mm1.53 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG510158303
Side View
Table 63.5%Crown 23.8°Girdle: MediumPavilion 41.3°Culet: NoneDepth 65.8%

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: Nov 1
Current: £828 GBP|Low: £132 GBP|High: £918 GBP|Avg: £478 GBP|-9.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9£149 GBP
Retailer 7£222 GBP
Retailer 3£298 GBP
Retailer 8£299 GBP
Retailer 6£360 GBP
Retailer 5£374 GBP
Retailer 4£415 GBP
Retailer 10£573 GBP
Retailer 2£774 GBP
Brilliant Earth£828 GBP

43 data points across 10 retailers

10 retailers£149 GBP to £828 GBP

A
Cheapest Retailer
-
£149 GBP
$200 USD
Final sale: no returns
B+
Retailer 2
-
£222 GBP
$298 USD
View
A
Retailer 3
-
£298 GBP
View
A
Retailer 4
-
£299 GBP
View
A
Retailer 5
-
£360 GBP
$482 USD
View
A
Retailer 6
-
£374 GBP
€477 EUR
View
A
Retailer 7
-
£415 GBP
$556 USD
View
B+
Retailer 8
-
£573 GBP
$768 USD
View
B
Retailer 9
-
£774 GBP
View
Most Expensive
B
Brilliant Earth
14223785A · Oct 30
£828 GBP
$1,110 USD
View
9 more retailers have this diamond
Prices start from £149 GBPSave up to £679 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
1.53ct Asscher
£149 GBP