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Cushion|Lab Grown|IGI

4.00ct G VVS2 Cushion Lab Grown Diamond

ID • G/VVS2 • IGI LG817634491

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG817634491

Diamond specifications and retailer prices

From £488 GBP
As of October 27, 2026
Save £2,922 GBP (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,411 GBP at Brilliant Earth · As of October 30, 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 LG817634491 or 817634491. Listed at 20 retailers as of October 27, 2026, with prices from £488 to £3,411, a £2,922 spread on the same certified stone. Brilliant Earth lists it at £3,411. 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 angle35.5°
Pavilion angle28.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817634491
Dimensions10.68 × 7.98 × 5.10 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.68 mm7.98 mm4.00 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817634491
Side View
Table 61.0%Crown 35.5°Girdle: MED-THKPavilion 28.1°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
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 27
Current: £3,411 GBP|Low: £426 GBP|High: £3,851 GBP|Avg: £1,248 GBP|-11.4%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 7£426 GBP
Retailer 18£488 GBP
Retailer 21£516 GBP
Retailer 17£545 GBP
Retailer 16£694 GBP
Retailer 8£712 GBP
Retailer 19£728 GBP
Retailer 9£734 GBP
Retailer 20£933 GBP
Retailer 5£955 GBP
Retailer 6£1,103 GBP
Retailer 2£1,114 GBP
Retailer 14£1,376 GBP
Retailer 13£1,497 GBP
Retailer 12£1,539 GBP
Retailer 10£1,556 GBP
Retailer 4£1,755 GBP
Retailer 3£1,985 GBP
Retailer 15£2,069 GBP
Retailer 11£2,269 GBP
Brilliant Earth£3,411 GBP

26 data points across 21 retailers

20 retailers£488 GBP to £3,411 GBP

A
Cheapest Retailer
-
£488 GBP
A
Retailer 2
-
£516 GBP
HK$5,400 HKD
View
A
Retailer 3
-
£545 GBP
$730 USD
View
A
Retailer 4
-
£694 GBP
€885 EUR
View
A
Retailer 5
-
£712 GBP
$954 USD
View
A
Retailer 6
-
£728 GBP
View
B+
Retailer 7
-
£734 GBP
$984 USD
View
A
Retailer 8
-
£933 GBP
ZAR 20,191 ZAR
View
Retailer 9
-
£955 GBP
A$1,968 AUD
View
Price last confirmed 11 days ago
A
Retailer 10
-
£1,103 GBP
$1,478 USD
View
A
Retailer 11
-
£1,114 GBP
$1,492 USD
View
A
Retailer 12
-
£1,376 GBP
View
B+
Retailer 13
-
£1,497 GBP
SGD 2,711 SGD
View
B+
Retailer 14
-
£1,539 GBP
$2,062 USD
View
B+
Retailer 15
-
£1,556 GBP
$2,084 USD
View
B+
Retailer 16
-
£1,755 GBP
$2,351 USD
View
Retailer 17
-
£1,985 GBP
View
Price last confirmed 9 days ago
B+
Retailer 18
-
£2,069 GBP
$2,772 USD
View
Retailer 19
-
£2,269 GBP
$3,040 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20781844A · Oct 30
£3,411 GBP
$4,570 USD
View
19 more retailers have this diamond
Prices start from £488 GBPSave up to £2,922 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
£488 GBP