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Cushion|Lab Grown|IGI

4.31ct H VS1 Cushion Lab Grown Diamond

VG • H/VS1 • IGI LG564385689

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG564385689

Diamond specifications and retailer prices

From £404 GBP
$541 USD
As of October 31, 2026
Save £2,111 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,515 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.31ct lab-grown cushion diamond

This 4.31ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG564385689 or 564385689. Listed at 11 retailers as of October 31, 2026, with prices from £404 to £2,515, a £2,111 spread on the same certified stone. Brilliant Earth lists it at £2,515. 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
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG564385689
Dimensions10.97 × 8.73 × 5.84 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.97 mm8.73 mm4.31 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG564385689
Side View
Table 65.5%Crown 29.3°Girdle: MED-THKPavilion 38°Culet: NoneDepth 66.9%

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: £2,515 GBP|Low: £293 GBP|High: £4,321 GBP|Avg: £1,270 GBP|-41.8%
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
October 31, 2026
Retailer 12£404 GBP
Retailer 3£447 GBP
Retailer 8£552 GBP
Retailer 7£571 GBP
Retailer 14£698 GBP
Retailer 2£704 GBP
Retailer 13£761 GBP
Retailer 11£890 GBP
Retailer 9£896 GBP
Retailer 4£1,028 GBP
Retailer 5£1,206 GBP
Retailer 15£1,459 GBP
Retailer 10£1,878 GBP
Retailer 6£2,464 GBP
Brilliant Earth£2,515 GBP

32 data points across 15 retailers

11 retailers£404 GBP to £2,515 GBP

A
Cheapest Retailer
-
£404 GBP
$541 USD
Final sale: no returns
A
Retailer 2
-
£552 GBP
$740 USD
View
B+
Retailer 3
-
£698 GBP
$935 USD
View
A
Retailer 4
-
£704 GBP
€898 EUR
View
A
Retailer 5
-
£761 GBP
$1,020 USD
View
A
Retailer 6
-
£890 GBP
ZAR 19,270 ZAR
View
A
Retailer 7
-
£896 GBP
A$1,848 AUD
View
A
Retailer 8
-
£1,028 GBP
$1,377 USD
View
A
Retailer 9
-
£1,459 GBP
$1,955 USD
View
B+
Retailer 10
-
£1,878 GBP
View
Most Expensive
B
Brilliant Earth
7628607A · Oct 31
£2,515 GBP
$3,370 USD
View
10 more retailers have this diamond
Prices start from £404 GBPSave up to £2,111 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
4.31ct Cushion
£404 GBP