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Cushion|Lab Grown|IGI

1.52ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818659739

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818659739

Diamond specifications and retailer prices

From £463 GBP
$620 USD
As of October 30, 2026
Save £2,306 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,769 GBP at Brilliant Earth · As of October 30, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659739 or 818659739. Listed at 17 retailers as of October 30, 2026, with prices from £463 to £2,769, a £2,306 spread on the same certified stone. Brilliant Earth lists it at £2,769. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.52
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659739
Dimensions6.63 × 6.46 × 4.33 mm
L/W Ratio1.03
Girdle conditionFaceted
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
6.63 mm6.46 mm1.52 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659739
Side View
Table 62.0%Crown 35.7°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 67.0%

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: £2,769 GBP|Low: £429 GBP|High: £3,627 GBP|Avg: £1,344 GBP|-23.7%
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
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Retailer 16
Retailer 17
October 30, 2026
Retailer 14£463 GBP
Retailer 9£493 GBP
Retailer 12£549 GBP
Retailer 10£720 GBP
Retailer 2£737 GBP
Retailer 5£740 GBP
Retailer 16£817 GBP
Retailer 11£818 GBP
Retailer 6£1,115 GBP
Retailer 4£1,388 GBP
Retailer 17£1,549 GBP
Retailer 13£1,623 GBP
Retailer 7£1,693 GBP
Retailer 15£1,990 GBP
Retailer 8£2,008 GBP
Retailer 3£2,359 GBP
Brilliant Earth£2,769 GBP

25 data points across 17 retailers

17 retailers£463 GBP to £2,769 GBP

A
Cheapest Retailer
-
£463 GBP
$620 USD
Final sale: no returns
Retailer 2
-
£493 GBP
$661 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£549 GBP
$735 USD
View
A
Retailer 4
-
£720 GBP
€919 EUR
View
A
Retailer 5
-
£737 GBP
View
A
Retailer 6
-
£740 GBP
$991 USD
View
A
Retailer 7
-
£817 GBP
$1,095 USD
View
A
Retailer 8
-
£818 GBP
ZAR 17,710 ZAR
View
B+
Retailer 9
-
£1,115 GBP
$1,494 USD
View
B+
Retailer 10
-
£1,388 GBP
View
B+
Retailer 11
-
£1,549 GBP
$2,075 USD
View
B+
Retailer 12
-
£1,623 GBP
$2,174 USD
View
B+
Retailer 13
-
£1,693 GBP
SGD 3,065 SGD
View
B+
Retailer 14
-
£1,990 GBP
View
Retailer 15
-
£2,008 GBP
$2,690 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£2,359 GBP
$3,161 USD
View
Most Expensive
B
Brilliant Earth
21421795A · Oct 30
£2,769 GBP
$3,710 USD
View
16 more retailers have this diamond
Prices start from £463 GBPSave up to £2,306 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
£463 GBP