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Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG742544026

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG742544026

Diamond specifications and retailer prices

From £467 GBP
As of November 4, 2026
Save £2,852 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,319 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG742544026 or 742544026. Listed at 21 retailers as of November 4, 2026, with prices from £467 to £3,319, a £2,852 spread on the same certified stone. Brilliant Earth lists it at £3,319. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742544026
Dimensions7.96 × 5.76 × 3.96 mm
L/W Ratio1.38
Girdle conditionFaceted
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
7.96 mm5.76 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742544026
Side View
Table 57.0%Crown 39.3°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 68.8%

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 4
Current: £3,319 GBP|Low: £467 GBP|High: £3,319 GBP|Avg: £1,369 GBP|+6.4%
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
November 5, 2026
Retailer 9£467 GBP
Retailer 7£545 GBP
Retailer 13£596 GBP
Retailer 4£693 GBP
Retailer 8£785 GBP
Retailer 2£799 GBP
Retailer 11£891 GBP
Retailer 10£1,174 GBP
Retailer 14£1,204 GBP
Retailer 6£1,799 GBP
Retailer 5£1,853 GBP
Retailer 3£1,963 GBP
Retailer 12£2,243 GBP
Brilliant Earth£3,319 GBP

35 data points across 14 retailers

21 retailers£467 GBP to £3,319 GBP

A
Cheapest Retailer
-
£467 GBP
Final sale: no returns
Retailer 2
-
£517 GBP
View
Price last confirmed 20 days ago
A
Retailer 3
-
£545 GBP
View
A
Retailer 4
-
£596 GBP
View
A
Retailer 5
-
£676 GBP
View
A
Retailer 6
-
£693 GBP
View
A
Retailer 7
-
£785 GBP
View
A
Retailer 8
-
£799 GBP
View
A
Retailer 9
-
£841 GBP
View
A
Retailer 10
-
£891 GBP
View
B+
Retailer 11
-
£1,174 GBP
View
B+
Retailer 12
-
£1,204 GBP
View
B+
Retailer 13
-
£1,501 GBP
View
B+
Retailer 14
-
£1,664 GBP
View
B+
Retailer 15
-
£1,675 GBP
View
B+
Retailer 16
-
£1,741 GBP
View
B+
Retailer 17
-
£1,799 GBP
View
Retailer 18
-
£1,853 GBP
View
Price last confirmed 28 days ago
Retailer 19
-
£1,963 GBP
View
Price last confirmed 17 days ago
B+
Retailer 20
-
£2,243 GBP
View
Most Expensive
B
Brilliant Earth
16392325A · Nov 4
£3,319 GBP
$4,480 USD
View
20 more retailers have this diamond
Prices start from £467 GBPSave up to £2,852 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
1.54ct Cushion
£467 GBP