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Cushion|Lab Grown|IGI

3.09ct E VVS2 Cushion Lab Grown Diamond

EX • E/VVS2 • IGI LG825687390

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825687390

Diamond specifications and retailer prices

From £405 GBP
$538 USD
As of October 27, 2026
Save £4,750 GBP (92%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,155 GBP at Brilliant Earth · As of October 28, 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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825687390 or 825687390. Listed at 20 retailers as of October 27, 2026, with prices from £405 to £5,155, a £4,750 spread on the same certified stone. Brilliant Earth lists it at £5,155. 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
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687390
Dimensions9.63 × 7.37 × 4.88 mm
L/W Ratio1.31
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.63 mm7.37 mm3.09 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687390
Side View
Table 65.0%Crown 33.9°Girdle: MED-THKPavilion 31.2°Culet: NoneDepth 66.2%

Caratlytics Score

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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: £5,155 GBP|Low: £396 GBP|High: £5,155 GBP|Avg: £1,285 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 12
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Retailer 20
October 29, 2026
Retailer 11£405 GBP
Retailer 6£491 GBP
Retailer 15£501 GBP
Retailer 17£538 GBP
Retailer 2£658 GBP
Retailer 7£698 GBP
Retailer 16£740 GBP
Retailer 3£954 GBP
Retailer 20£965 GBP
Retailer 5£1,042 GBP
Retailer 19£1,071 GBP
Retailer 14£1,409 GBP
Retailer 10£1,463 GBP
Retailer 8£1,572 GBP
Retailer 18£1,649 GBP
Retailer 9£1,678 GBP
Retailer 12£1,776 GBP
Retailer 13£1,934 GBP
Retailer 4£2,254 GBP
Brilliant Earth£5,155 GBP

31 data points across 20 retailers

20 retailers£405 GBP to £5,155 GBP

A
Cheapest Retailer
-
£405 GBP
$538 USD
Final sale: no returns
A
Retailer 2
-
£491 GBP
HK$5,100 HKD
View
A
Retailer 3
-
£501 GBP
View
A
Retailer 4
-
£538 GBP
$715 USD
View
A
Retailer 5
-
£658 GBP
€833 EUR
View
A
Retailer 6
-
£698 GBP
$928 USD
View
A
Retailer 7
-
£740 GBP
View
A
Retailer 8
-
£954 GBP
A$1,950 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
£965 GBP
ZAR 20,707 ZAR
View
A
Retailer 10
-
£1,042 GBP
$1,384 USD
View
A
Retailer 11
-
£1,071 GBP
$1,423 USD
View
A
Retailer 12
-
£1,409 GBP
SGD 2,530 SGD
View
A
Retailer 13
-
£1,463 GBP
$1,944 USD
View
B+
Retailer 14
-
£1,572 GBP
$2,089 USD
View
B+
Retailer 15
-
£1,649 GBP
View
B+
Retailer 16
-
£1,678 GBP
$2,230 USD
View
B+
Retailer 17
-
£1,776 GBP
A$3,630 AUD
View
Price last confirmed 21 days ago
B+
Retailer 18
-
£1,934 GBP
$2,570 USD
View
B+
Retailer 19
-
£2,254 GBP
$2,995 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20891777A · Oct 28
£5,155 GBP
$6,850 USD
View
19 more retailers have this diamond
Prices start from £405 GBPSave up to £4,750 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
£405 GBP