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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG528235321

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG528235321

Diamond specifications and retailer prices

From £478 GBP
$641 USD
As of November 3, 2026
Save £1,825 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,303 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG528235321 or 528235321. Listed at 14 retailers as of November 3, 2026, with prices from £478 to £2,303, a £1,825 spread on the same certified stone. MOH London lists it at £2,303. 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528235321
Dimensions8.65 × 8.34 × 5.65 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Top View
8.65 mm8.34 mm3.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG528235321
Side View
Table 63.5%Crown 33.2°Girdle: THK-VTKPavilion 42.3°Culet: NoneDepth 67.7%

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: Nov 3
Current: £2,303 GBP|Low: £452 GBP|High: £2,331 GBP|Avg: £1,192 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 3£478 GBP
Retailer 10£530 GBP
Retailer 7£611 GBP
Retailer 13£737 GBP
Retailer 9£817 GBP
Retailer 2£828 GBP
Retailer 11£841 GBP
Retailer 6£1,152 GBP
Retailer 12£1,546 GBP
Retailer 5£1,718 GBP
Retailer 4£1,779 GBP
Retailer 8£2,058 GBP
MOH London£2,303 GBP

42 data points across 13 retailers

14 retailers£478 GBP to £2,303 GBP

A
Cheapest Retailer
-
£478 GBP
$641 USD
Final sale: no returns
Retailer 2
-
£530 GBP
$711 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£611 GBP
$820 USD
View
A
Retailer 4
-
£737 GBP
$988 USD
View
A
Retailer 5
-
£817 GBP
$1,095 USD
View
A
Retailer 6
-
£828 GBP
View
A
Retailer 7
-
£841 GBP
$1,128 USD
View
A
Retailer 8
-
£1,152 GBP
ZAR 24,951 ZAR
View
B
Retailer 9
-
£1,546 GBP
View
B+
Retailer 10
-
£1,718 GBP
$2,305 USD
View
B+
Retailer 11
-
£1,747 GBP
HK$18,300 HKD
View
B
Retailer 12
-
£1,779 GBP
$2,386 USD
View
B
Retailer 13
-
£2,058 GBP
$2,760 USD
View
Most Expensive
B
MOH London
LG528235321 · Nov 3
£2,303 GBP
View
13 more retailers have this diamond
Prices start from £478 GBPSave up to £1,825 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
£478 GBP