Cushion|Lab Grown|IGI

3.53ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG641472925

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG641472925

Diamond specifications and retailer prices

From £424 GBP
$568 USD
As of October 31, 2026
Save £2,942 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,232 GBP at Brilliant Earth · As of October 2, 2026
View at Brilliant Earth

About this 3.53ct lab-grown cushion diamond

This 3.53ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG641472925 or 641472925. Listed at 21 retailers as of October 29, 2026, with a 694% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.53
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641472925
Dimensions9.17 × 8.74 × 5.94 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.17 mm8.74 mm3.53 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641472925
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,232 GBP|Low: £424 GBP|High: £5,127 GBP|Avg: £1,706 GBP
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 20£424 GBP
Retailer 10£578 GBP
Retailer 15£579 GBP
Retailer 5£622 GBP
Retailer 13£623 GBP
Retailer 6£714 GBP
Retailer 16£1,096 GBP
Retailer 2£1,136 GBP
Retailer 7£1,513 GBP
Retailer 17£1,716 GBP
Retailer 9£1,726 GBP
Retailer 14£1,743 GBP
Retailer 3£1,770 GBP
Retailer 4£1,873 GBP
Retailer 12£1,886 GBP
Retailer 11£2,464 GBP
Retailer 8£2,635 GBP
Retailer 18£2,786 GBP
Retailer 19£3,366 GBP
Brilliant Earth£4,232 GBP

37 data points across 20 retailers

21 retailers£424 GBP to £3,366 GBP

A
Cheapest Retailer
-
£424 GBP
$568 USD
Final sale: no returns
Retailer 2
-
£578 GBP
$774 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£579 GBP
View
B+
Retailer 4
-
£622 GBP
$834 USD
View
A
Retailer 5
-
£623 GBP
$835 USD
View
A
Retailer 6
-
£714 GBP
$957 USD
View
A
Retailer 7
-
£1,096 GBP
A$2,259 AUD
View
B+
Retailer 8
-
£1,136 GBP
View
Retailer 9
-
£1,513 GBP
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£1,716 GBP
ZAR 37,152 ZAR
View
B+
Retailer 11
-
£1,726 GBP
$2,312 USD
View
B+
Retailer 12
-
£1,743 GBP
$2,336 USD
View
B+
Retailer 13
-
£1,770 GBP
$2,372 USD
View
Retailer 14
-
£1,873 GBP
$2,510 USD
View
Price last confirmed 10 days ago
Retailer 15
-
£1,886 GBP
$2,527 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
£1,972 GBP
CA$3,669 CAD
View
B
Retailer 17
-
£2,464 GBP
$3,302 USD
View
B
Retailer 18
-
£2,635 GBP
SGD 4,771 SGD
View
B
Retailer 19
-
£2,786 GBP
View
B
Retailer 20
-
£3,366 GBP
$4,510 USD
View
Most Expensive
Brilliant Earth
15669629Y · Oct 2
£4,232 GBP
$5,670 USD
View
Price last confirmed 29 days ago
20 more retailers have this diamond
Prices start from £424 GBPSave up to £2,942 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
3.53ct Cushion
£424 GBP