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Cushion|Lab Grown|IGI

1.52ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG830669830

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

Certificate IGI LG830669830

Diamond specifications and retailer prices

From £404 GBP
As of November 4, 2026
Save £2,870 GBP (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,274 GBP at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG830669830 or 830669830. Listed at 20 retailers as of November 4, 2026, with prices from £404 to £3,274, a £2,870 spread on the same certified stone. Brilliant Earth lists it at £3,274. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.52
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830669830
Dimensions6.47 × 6.45 × 4.40 mm
L/W Ratio1.00
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
6.47 mm6.45 mm1.52 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830669830
Side View
Table 63.0%Crown 35.4°Girdle: MED-THKPavilion 37.7°Culet: NoneDepth 68.2%

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: £3,274 GBP|Low: £404 GBP|High: £3,274 GBP|Avg: £1,205 GBP
Brilliant Earth
Retailer 2
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Retailer 19
November 5, 2026
Retailer 18£404 GBP
Retailer 13£472 GBP
Retailer 11£501 GBP
Retailer 7£578 GBP
Retailer 3£600 GBP
Retailer 5£652 GBP
Retailer 12£736 GBP
Retailer 16£772 GBP
Retailer 17£804 GBP
Retailer 15£1,053 GBP
Retailer 14£1,141 GBP
Retailer 9£1,167 GBP
Retailer 6£1,390 GBP
Retailer 10£1,456 GBP
Retailer 19£1,459 GBP
Retailer 4£1,563 GBP
Retailer 8£1,806 GBP
Retailer 2£1,863 GBP
Brilliant Earth£3,274 GBP

34 data points across 19 retailers

20 retailers£404 GBP to £3,274 GBP

A
Cheapest Retailer
-
£404 GBP
Final sale: no returns
A
Retailer 2
-
£472 GBP
View
Retailer 3
-
£501 GBP
View
Price last confirmed 20 days ago
A
Retailer 4
-
£578 GBP
View
A
Retailer 5
-
£600 GBP
View
A
Retailer 6
-
£652 GBP
View
A
Retailer 7
-
£736 GBP
View
A
Retailer 8
-
£772 GBP
View
A
Retailer 9
-
£804 GBP
View
B+
Retailer 10
-
£1,053 GBP
View
B+
Retailer 11
-
£1,141 GBP
View
B+
Retailer 12
-
£1,167 GBP
View
B+
Retailer 13
-
£1,390 GBP
View
B+
Retailer 14
-
£1,456 GBP
View
B+
Retailer 15
-
£1,459 GBP
View
B+
Retailer 16
-
£1,563 GBP
View
B
Retailer 17
-
£1,806 GBP
View
B
Retailer 18
-
£1,863 GBP
View
Retailer 19
-
£2,107 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21271804A · Nov 4
£3,274 GBP
$4,420 USD
View
19 more retailers have this diamond
Prices start from £404 GBPSave up to £2,870 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
£404 GBP