CaratHunter
Plans
Cushion|Lab Grown|IGI

3.09ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG657418549

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG657418549

Diamond specifications and retailer prices

From £538 GBP
As of October 30, 2026
Save £2,836 GBP (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,373 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG657418549 or 657418549. Listed at 13 retailers as of October 30, 2026, with prices from £538 to £3,373, a £2,836 spread on the same certified stone. Brilliant Earth lists it at £3,373. 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

3.09
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657418549
Dimensions8.58 × 8.45 × 5.53 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm8.45 mm3.09 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657418549
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

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 30
Current: £3,373 GBP|Low: £386 GBP|High: £4,023 GBP|Avg: £1,163 GBP|-16.1%
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
October 30, 2026
Retailer 4£448 GBP
Retailer 2£538 GBP
Retailer 10£627 GBP
Retailer 7£647 GBP
Retailer 3£698 GBP
Retailer 11£725 GBP
Retailer 6£744 GBP
Retailer 12£922 GBP
Retailer 13£1,461 GBP
Retailer 5£1,676 GBP
Retailer 9£1,769 GBP
Retailer 8£1,872 GBP
Brilliant Earth£3,373 GBP

34 data points across 13 retailers

13 retailers£538 GBP to £3,373 GBP

Retailer 1
-
£448 GBP
$600 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£538 GBP
View
A
Retailer 3
-
£627 GBP
$840 USD
View
A
Retailer 4
-
£647 GBP
€826 EUR
View
A
Retailer 5
-
£698 GBP
$935 USD
View
A
Retailer 6
-
£725 GBP
$972 USD
View
A
Retailer 7
-
£744 GBP
View
A
Retailer 8
-
£922 GBP
$1,236 USD
View
Retailer 9
-
£1,461 GBP
$1,957 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£1,676 GBP
$2,246 USD
View
Retailer 11
-
£1,769 GBP
$2,370 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£1,872 GBP
View
Most Expensive
B
Brilliant Earth
11925065A · Oct 30
£3,373 GBP
$4,520 USD
View
12 more retailers have this diamond
Prices start from £538 GBPSave up to £2,836 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
3.09ct Cushion
£538 GBP