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Cushion|Lab Grown|IGI

4.00ct G VVS2 Cushion Lab Grown Diamond

ID • G/VVS2 • IGI LG830643227

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830643227

Diamond specifications and retailer prices

From £500 GBP
As of October 27, 2026
Save £3,067 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,567 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown cushion diamond

This 4ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830643227 or 830643227. Listed at 20 retailers as of October 27, 2026, with prices from £500 to £3,567, a £3,067 spread on the same certified stone. Brilliant Earth lists it at £3,567. 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

4.00
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830643227
Dimensions10.63 × 8.24 × 5.20 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.63 mm8.24 mm4.00 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830643227
Side View
Table 64.0%Crown 34.3°Girdle: MED-THKPavilion 31.9°Culet: NoneDepth 63.1%

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 27
Current: £3,567 GBP|Low: £437 GBP|High: £3,985 GBP|Avg: £1,329 GBP|-10.5%
Brilliant Earth
Retailer 2
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October 29, 2026
Retailer 7£437 GBP
Retailer 16£500 GBP
Retailer 21£525 GBP
Retailer 19£560 GBP
Retailer 2£702 GBP
Retailer 8£722 GBP
Retailer 17£746 GBP
Retailer 9£749 GBP
Retailer 20£955 GBP
Retailer 5£978 GBP
Retailer 3£1,102 GBP
Retailer 6£1,129 GBP
Retailer 14£1,410 GBP
Retailer 15£1,515 GBP
Retailer 12£1,574 GBP
Retailer 10£1,583 GBP
Retailer 4£1,796 GBP
Retailer 18£2,024 GBP
Retailer 13£2,095 GBP
Retailer 11£2,269 GBP
Brilliant Earth£3,567 GBP

25 data points across 21 retailers

20 retailers£500 GBP to £3,567 GBP

A
Cheapest Retailer
-
£500 GBP
A
Retailer 2
-
£525 GBP
HK$5,500 HKD
View
A
Retailer 3
-
£560 GBP
$750 USD
View
A
Retailer 4
-
£702 GBP
€896 EUR
View
A
Retailer 5
-
£722 GBP
$968 USD
View
A
Retailer 6
-
£746 GBP
View
B+
Retailer 7
-
£749 GBP
$1,004 USD
View
A
Retailer 8
-
£955 GBP
ZAR 20,669 ZAR
View
Retailer 9
-
£978 GBP
A$2,015 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
£1,102 GBP
$1,477 USD
View
A
Retailer 11
-
£1,129 GBP
$1,513 USD
View
A
Retailer 12
-
£1,410 GBP
View
B+
Retailer 13
-
£1,515 GBP
SGD 2,743 SGD
View
B+
Retailer 14
-
£1,574 GBP
$2,109 USD
View
B+
Retailer 15
-
£1,583 GBP
$2,121 USD
View
B+
Retailer 16
-
£1,796 GBP
$2,406 USD
View
B+
Retailer 17
-
£2,024 GBP
View
B+
Retailer 18
-
£2,095 GBP
$2,807 USD
View
Retailer 19
-
£2,269 GBP
$3,040 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21273841A · Oct 29
£3,567 GBP
$4,780 USD
View
19 more retailers have this diamond
Prices start from £500 GBPSave up to £3,067 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
4.00ct Cushion
£500 GBP