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Cushion|Lab Grown|IGI

3.09ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG711522980

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG711522980

Diamond specifications and retailer prices

From £911 GBP
$1,213 USD
As of October 23, 2026
Save £3,137 GBP (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,048 GBP at Brilliant Earth · As of October 23, 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 LG711522980 or 711522980. Listed at 12 retailers as of October 23, 2026, with prices from £911 to £4,048, a £3,137 spread on the same certified stone. Brilliant Earth lists it at £4,048. 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 angle35.7°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG711522980
Dimensions8.55 × 8.39 × 5.52 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
8.55 mm8.39 mm3.09 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG711522980
Side View
Table 61.0%Crown 35.7°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 65.8%

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 23
Current: £4,048 GBP|Low: £384 GBP|High: £4,168 GBP|Avg: £1,218 GBP|-2.9%
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 22, 2026
Retailer 5£384 GBP
Retailer 9£462 GBP
Retailer 10£582 GBP
Retailer 12£607 GBP
Retailer 2£624 GBP
Retailer 7£657 GBP
Retailer 11£669 GBP
Retailer 3£911 GBP
Retailer 4£1,261 GBP
Retailer 8£1,419 GBP
Retailer 13£1,438 GBP
Retailer 6£1,780 GBP
Brilliant Earth£4,048 GBP

28 data points across 13 retailers

12 retailers£911 GBP to £4,048 GBP

Retailer 1
-
£384 GBP
$512 USD
Price last confirmed 18 days ago
Retailer 2
-
£462 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
£582 GBP
$775 USD
View
Price last confirmed 7 days ago
Retailer 4
-
£607 GBP
$808 USD
View
Price last confirmed 9 days ago
Retailer 5
-
£624 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£669 GBP
$891 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
£911 GBP
$1,213 USD
View
Retailer 8
-
£1,261 GBP
$1,679 USD
View
Price last confirmed 12 days ago
Retailer 9
-
£1,419 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
£1,438 GBP
$1,915 USD
View
Price last confirmed 8 days ago
Retailer 11
-
£1,780 GBP
$2,370 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
14871648A · Oct 23
£4,048 GBP
$5,390 USD
View
11 more retailers have this diamond
Prices start from £911 GBPSave up to £3,137 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
£911 GBP