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Cushion|Lab Grown|IGI

3.09ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG797608377

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG797608377

Diamond specifications and retailer prices

From £594 GBP
$791 USD
As of October 30, 2026
Save £3,649 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,243 GBP at Brilliant Earth · As of October 29, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG797608377 or 797608377. Listed at 12 retailers as of October 29, 2026, with prices from £594 to £4,243, a £3,649 spread on the same certified stone. Brilliant Earth lists it at £4,243. 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
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797608377
Dimensions9.84 × 7.67 × 5.12 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.84 mm7.67 mm3.09 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797608377
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 66.8%

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: £4,243 GBP|Low: £259 GBP|High: £4,280 GBP|Avg: £1,361 GBP|+12.5%
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
Retailer 14
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Retailer 17
October 29, 2026
Retailer 7£259 GBP
Retailer 16£594 GBP
Retailer 13£610 GBP
Retailer 10£612 GBP
Retailer 5£640 GBP
Retailer 12£671 GBP
Retailer 2£745 GBP
Retailer 4£753 GBP
Retailer 15£772 GBP
Retailer 3£1,428 GBP
Retailer 6£1,444 GBP
Retailer 9£1,691 GBP
Retailer 8£1,814 GBP
Retailer 17£2,061 GBP
Retailer 11£2,132 GBP
Retailer 14£3,297 GBP
Brilliant Earth£4,243 GBP

21 data points across 17 retailers

12 retailers£594 GBP to £4,243 GBP

A
Cheapest Retailer
-
£594 GBP
$791 USD
B+
Retailer 2
-
£610 GBP
$812 USD
View
A
Retailer 3
-
£612 GBP
$815 USD
View
Retailer 4
-
£671 GBP
View
Price last confirmed 14 days ago
A
Retailer 5
-
£745 GBP
€945 EUR
View
A
Retailer 6
-
£772 GBP
$1,028 USD
View
B+
Retailer 7
-
£1,428 GBP
CA$2,640 CAD
View
Retailer 8
-
£1,691 GBP
A$3,465 AUD
View
Price last confirmed 118 days ago
B
Retailer 9
-
£2,061 GBP
$2,744 USD
View
Retailer 10
-
£2,132 GBP
View
Price last confirmed 9 days ago
B
Retailer 11
-
£3,297 GBP
$4,390 USD
View
Most Expensive
B
Brilliant Earth
21657390A · Oct 29
£4,243 GBP
$5,650 USD
View
11 more retailers have this diamond
Prices start from £594 GBPSave up to £3,649 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
£594 GBP