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Cushion|Lab Grown|IGI

3.51ct G VS2 Cushion Lab Grown Diamond

VG • G/VS2 • IGI LG659428457

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

Certificate IGI LG659428457

Diamond specifications and retailer prices

From £444 GBP
$595 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £444 GBP at William & Sons Jewelers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at William & Sons Jewelers

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG659428457 or 659428457. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.51
Carat
G
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659428457
Dimensions8.60 × 8.42 × 5.93 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
8.60 mm8.42 mm3.51 ctG / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659428457
Side View
Table 63.0%Crown 41.3°Girdle: STK-VTKPavilion 36.9°Culet: NoneDepth 70.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £743 GBP|Low: £317 GBP|High: £2,718 GBP|Avg: £1,640 GBP|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
William & Sons Jewelers
September 24, 2026
William & Sons Jewelers£444 GBP
Retailer 7£741 GBP
Retailer 1£743 GBP
Retailer 3£907 GBP
Retailer 5£1,049 GBP
Retailer 2£1,245 GBP
Retailer 8£1,956 GBP
Retailer 4£2,045 GBP
Retailer 6£2,155 GBP

41 data points across 9 retailers

1 retailer

B+
William & Sons Jewelers
cert_LG659428457 · Oct 31
£444 GBP
$595 USD
View
Final sale: no returns

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.

B+
3.51ct Cushion
£444 GBP