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Cushion|Lab Grown|IGI

4.52ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG818674959

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

Certificate IGI LG818674959

Diamond specifications and retailer prices

From £520 GBP
$693 USD
As of October 29, 2026
Save £3,497 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,017 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.52ct lab-grown cushion diamond

This 4.52ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818674959 or 818674959. Listed at 17 retailers as of October 29, 2026, with prices from £520 to £4,017, a £3,497 spread on the same certified stone. Brilliant Earth lists it at £4,017. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.52
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818674959
Dimensions9.60 × 9.41 × 6.19 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.60 mm9.41 mm4.52 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818674959
Side View
Table 62.0%Crown 32.5°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 65.8%

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: Oct 29
Current: £4,017 GBP|Low: £468 GBP|High: £4,017 GBP|Avg: £1,640 GBP
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
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Retailer 17
October 30, 2026
Retailer 3£468 GBP
Retailer 4£520 GBP
Retailer 14£672 GBP
Retailer 5£884 GBP
Retailer 11£900 GBP
Retailer 10£904 GBP
Retailer 13£1,148 GBP
Retailer 2£1,156 GBP
Retailer 15£1,277 GBP
Retailer 17£1,461 GBP
Retailer 9£1,717 GBP
Retailer 7£1,784 GBP
Retailer 6£1,864 GBP
Retailer 12£2,285 GBP
Retailer 8£2,663 GBP
Retailer 16£3,109 GBP
Brilliant Earth£4,017 GBP

34 data points across 17 retailers

17 retailers£520 GBP to £4,017 GBP

Retailer 1
-
£468 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£520 GBP
$693 USD
View
Final sale: no returns
A
Retailer 3
-
£672 GBP
$895 USD
View
B+
Retailer 4
-
£884 GBP
$1,177 USD
View
A
Retailer 5
-
£900 GBP
€1,141 EUR
View
A
Retailer 6
-
£904 GBP
View
A
Retailer 7
-
£1,148 GBP
ZAR 24,708 ZAR
View
A
Retailer 8
-
£1,156 GBP
A$2,368 AUD
View
A
Retailer 9
-
£1,277 GBP
$1,700 USD
View
A
Retailer 10
-
£1,461 GBP
$1,946 USD
View
Retailer 11
-
£1,717 GBP
View
Price last confirmed 17 days ago
A
Retailer 12
-
£1,784 GBP
$2,376 USD
View
B+
Retailer 13
-
£1,864 GBP
$2,482 USD
View
B+
Retailer 14
-
£2,285 GBP
View
Retailer 15
-
£2,663 GBP
A$5,456 AUD
View
Price last confirmed 21 days ago
Retailer 16
-
£3,109 GBP
$4,140 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21057030A · Oct 29
£4,017 GBP
$5,350 USD
View
16 more retailers have this diamond
Prices start from £520 GBPSave up to £3,497 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
4.52ct Cushion
£520 GBP