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Cushion|Lab Grown|IGI

3.51ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG747530629

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

Certificate IGI LG747530629

Diamond specifications and retailer prices

From £634 GBP
$850 USD
As of October 29, 2026
Save £2,427 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,061 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG747530629 or 747530629. Listed at 13 retailers as of October 29, 2026, with prices from £634 to £3,061, a £2,427 spread on the same certified stone. Frank Darling lists it at £3,061. 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

3.51
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747530629
Dimensions8.66 × 8.47 × 5.37 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.47 mm3.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747530629
Side View
Table 62.0%Crown 34.5°Girdle: MED-THKPavilion 33.5°Culet: NoneDepth 63.4%

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: £3,061 GBP|Low: £582 GBP|High: £3,911 GBP|Avg: £1,589 GBP|-5.4%
Frank Darling
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
October 30, 2026
Retailer 8£634 GBP
Retailer 12£697 GBP
Retailer 5£757 GBP
Retailer 2£774 GBP
Retailer 10£822 GBP
Retailer 7£863 GBP
Retailer 4£896 GBP
Retailer 14£1,289 GBP
Retailer 3£1,958 GBP
Retailer 9£2,014 GBP
Retailer 13£2,220 GBP
Retailer 11£2,347 GBP
Frank Darling£3,061 GBP
Retailer 6£3,523 GBP

36 data points across 14 retailers

13 retailers£634 GBP to £3,061 GBP

A
Cheapest Retailer
-
£634 GBP
$850 USD
A
Retailer 2
-
£697 GBP
HK$7,300 HKD
View
A
Retailer 3
-
£757 GBP
$1,014 USD
View
A
Retailer 4
-
£774 GBP
View
A
Retailer 5
-
£822 GBP
$1,102 USD
View
A
Retailer 6
-
£863 GBP
€1,101 EUR
View
A
Retailer 7
-
£896 GBP
$1,201 USD
View
B+
Retailer 8
-
£1,289 GBP
$1,727 USD
View
Retailer 9
-
£1,958 GBP
A$4,037 AUD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
£2,014 GBP
SGD 3,647 SGD
View
Retailer 11
-
£2,220 GBP
$2,975 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£2,347 GBP
View
Most Expensive
B
Frank Darling
129039-BBNG · Oct 29
£3,061 GBP
$4,102 USD
View
12 more retailers have this diamond
Prices start from £634 GBPSave up to £2,427 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
3.51ct Cushion
£634 GBP