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Cushion|Lab Grown|IGI

4.31ct F VVS2 Cushion Lab Grown Diamond

VG • F/VVS2 • IGI LG851619134

Certificate IGI LG851619134

Diamond specifications and retailer prices

From £1,506 GBP
As of November 2, 2026
Save £2,131 GBP (59%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,637 GBP at Taylor and Hart · As of November 1, 2026
View at Taylor and Hart

About this 4.31ct lab-grown cushion diamond

This 4.31ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG851619134 or 851619134. Listed at 2 retailers as of November 1, 2026, with prices from £1,506 to £3,637, a £2,131 spread on the same certified stone. Taylor and Hart lists it at £3,637. 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

4.31
Carat
F
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG851619134
Dimensions11.99 × 7.48 × 4.88 mm
L/W Ratio1.60
Top View
11.99 mm7.48 mm4.31 ctF / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851619134
Side View
Table 67.0%CrownGirdle: MED-STKPavilionCulet: LargeDepth 65.2%

Caratlytics Score

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

Last verified: Nov 2
Current: £1,506 GBP|Low: £1,506 GBP|High: £3,637 GBP|Avg: £2,927 GBP
Retailer 1
Taylor and Hart
November 2, 2026
Retailer 1£1,506 GBP
Taylor and Hart£3,637 GBP

2 data points across 2 retailers

2 retailers£1,506 GBP to £3,637 GBP

B+
Cheapest Retailer
-
£1,506 GBP
Most Expensive
B
Taylor and Hart
4BKPMKN · Nov 1
£3,637 GBP
$4,873 USD
View
1 more retailer has this diamond
Prices start from £1,506 GBPSave up to £2,131 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.

B+
4.31ct Cushion
£1,506 GBP