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Cushion|Lab Grown|IGI

1.52ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG681503677

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG681503677

Diamond specifications and retailer prices

From £161 GBP
$216 USD
As of November 1, 2026
Save £712 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £873 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.52ct lab-grown cushion diamond

This 1.52ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681503677 or 681503677. Listed at 10 retailers as of October 31, 2026, with prices from £161 to £873, a £712 spread on the same certified stone. Brilliant Earth lists it at £873. 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

1.52
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681503677
Dimensions7.63 × 6.21 × 3.96 mm
L/W Ratio1.23
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.63 mm6.21 mm1.52 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681503677
Side View
Table 63.0%Crown 34.9°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 63.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £873 GBP|Low: £161 GBP|High: £940 GBP|Avg: £448 GBP|-7.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10£161 GBP
Retailer 8£181 GBP
Retailer 6£313 GBP
Retailer 2£323 GBP
Retailer 3£328 GBP
Retailer 4£347 GBP
Retailer 5£372 GBP
Retailer 9£634 GBP
Retailer 7£847 GBP
Brilliant Earth£873 GBP

43 data points across 10 retailers

10 retailers£161 GBP to £873 GBP

A
Cheapest Retailer
-
£161 GBP
$216 USD
Final sale: no returns
Retailer 2
-
£181 GBP
$242 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£313 GBP
$419 USD
View
A
Retailer 4
-
£323 GBP
View
A
Retailer 5
-
£328 GBP
€419 EUR
View
A
Retailer 6
-
£347 GBP
$465 USD
View
A
Retailer 7
-
£372 GBP
$498 USD
View
B+
Retailer 8
-
£634 GBP
$850 USD
View
B
Retailer 9
-
£847 GBP
View
Most Expensive
B
Brilliant Earth
13374708A · Oct 31
£873 GBP
$1,170 USD
View
9 more retailers have this diamond
Prices start from £161 GBPSave up to £712 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
1.52ct Cushion
£161 GBP