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Asscher|Lab Grown|IGI

1.50ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG797622552

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG797622552

Diamond specifications and retailer prices

From £303 GBP
$406 USD
As of October 30, 2026
Save £772 GBP (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,075 GBP at Brilliant Earth · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG797622552 or 797622552. Listed at 5 retailers as of October 26, 2026, with prices from £303 to £1,075, a £772 spread on the same certified stone. Brilliant Earth lists it at £1,075. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797622552
Dimensions6.40 × 6.29 × 3.93 mm
L/W Ratio1.02
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
6.40 mm6.29 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797622552
Side View
Table 68.0%Crown 40.2°Girdle: MediumPavilion 34°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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: £1,075 GBP|Low: £290 GBP|High: £1,075 GBP|Avg: £550 GBP|+9.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 5£303 GBP
Retailer 6£354 GBP
Retailer 3£354 GBP
Retailer 4£365 GBP
Retailer 7£655 GBP
Retailer 2£806 GBP
Brilliant Earth£1,075 GBP

22 data points across 7 retailers

5 retailers£303 GBP to £1,075 GBP

B+
Cheapest Retailer
-
£303 GBP
$406 USD
A
Retailer 2
-
£354 GBP
€452 EUR
View
A
Retailer 3
-
£365 GBP
$489 USD
View
B
Retailer 4
-
£806 GBP
View
Most Expensive
B
Brilliant Earth
19659450A · Oct 26
£1,075 GBP
$1,440 USD
View
4 more retailers have this diamond
Prices start from £303 GBPSave up to £772 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
£303 GBP