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Cushion|Lab Grown|IGI

4.00ct G VVS2 Cushion Lab Grown Diamond

ID • G/VVS2 • IGI LG812617917

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812617917

Diamond specifications and retailer prices

From £411 GBP
$551 USD
As of October 29, 2026
Save £3,164 GBP (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,576 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

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 LG812617917 or 812617917. Listed at 6 retailers as of October 29, 2026, with prices from £411 to £3,576, a £3,164 spread on the same certified stone. Frank Darling lists it at £3,576. 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 angle35.4°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812617917
Dimensions11.01 × 8.27 × 5.55 mm
L/W Ratio1.33
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.01 mm8.27 mm4.00 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812617917
Side View
Table 61.0%Crown 35.4°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 67.1%

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 29
Current: £3,576 GBP|Low: £411 GBP|High: £3,576 GBP|Avg: £1,409 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 2£411 GBP
Retailer 10£507 GBP
Retailer 3£573 GBP
Retailer 9£669 GBP
Retailer 8£747 GBP
Retailer 6£855 GBP
Retailer 5£1,548 GBP
Retailer 4£2,228 GBP
Retailer 7£3,202 GBP
Frank Darling£3,576 GBP

18 data points across 10 retailers

6 retailers£411 GBP to £3,576 GBP

A
Cheapest Retailer
-
£411 GBP
$551 USD
Final sale: no returns
B+
Retailer 2
-
£573 GBP
$768 USD
View
Retailer 3
-
£855 GBP
$1,145 USD
View
Price last confirmed 17 days ago
B+
Retailer 4
-
£1,548 GBP
$2,074 USD
View
Retailer 5
-
£2,228 GBP
$2,985 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Frank Darling
100759895192KD · Oct 29
£3,576 GBP
$4,791 USD
View
5 more retailers have this diamond
Prices start from £411 GBPSave up to £3,164 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
£411 GBP