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Asscher|Lab Grown|IGI

1.50ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG700505261

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG700505261

Diamond specifications and retailer prices

From £156 GBP
$209 USD
As of October 30, 2026
Save £747 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £903 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 LG700505261 or 700505261. Listed at 16 retailers as of October 30, 2026, with prices from £156 to £903, a £747 spread on the same certified stone. Brilliant Earth lists it at £903. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700505261
Dimensions6.38 × 6.31 × 4.16 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
6.38 mm6.31 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700505261
Side View
Table 64.0%Crown 32.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 65.9%

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: £903 GBP|Low: £149 GBP|High: £933 GBP|Avg: £434 GBP|-3.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 12£156 GBP
Retailer 6£175 GBP
Retailer 5£181 GBP
Retailer 4£193 GBP
Retailer 14£193 GBP
Retailer 3£333 GBP
Retailer 10£349 GBP
Retailer 8£353 GBP
Retailer 2£356 GBP
Retailer 11£483 GBP
Retailer 15£621 GBP
Retailer 7£661 GBP
Retailer 13£679 GBP
Retailer 9£778 GBP
Brilliant Earth£903 GBP

45 data points across 15 retailers

16 retailers£156 GBP to £903 GBP

A
Cheapest Retailer
-
£156 GBP
$209 USD
A
Retailer 2
-
£175 GBP
$234 USD
View
Final sale: no returns
A
Retailer 3
-
£181 GBP
$242 USD
View
A
Retailer 4
-
£193 GBP
$259 USD
View
A
Retailer 5
-
£193 GBP
$259 USD
View
B+
Retailer 6
-
£333 GBP
$446 USD
View
A
Retailer 7
-
£349 GBP
View
B+
Retailer 8
-
£353 GBP
€451 EUR
View
A
Retailer 9
-
£356 GBP
View
B+
Retailer 10
-
£483 GBP
$647 USD
View
B+
Retailer 11
-
£621 GBP
$832 USD
View
B
Retailer 12
-
£661 GBP
$885 USD
View
Retailer 13
-
£677 GBP
$907 USD
View
Price last confirmed 82 days ago
Retailer 14
-
£679 GBP
$910 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
£778 GBP
View
Most Expensive
B
Brilliant Earth
21312311A · Oct 30
£903 GBP
$1,210 USD
View
15 more retailers have this diamond
Prices start from £156 GBPSave up to £747 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
£156 GBP