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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG621488045

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

Certificate IGI LG621488045

Diamond specifications and retailer prices

From £523 GBP
As of November 2, 2026
Save £2,527 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,050 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG621488045 or 621488045. Listed at 14 retailers as of November 2, 2026, with prices from £523 to £3,050, a £2,527 spread on the same certified stone. Do Amore Diamonds lists it at £3,050. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621488045
Dimensions8.68 × 8.34 × 5.46 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.68 mm8.34 mm3.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621488045
Side View
Table 58.0%Crown 39.1°Girdle: MED-THKPavilion 37.3°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
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: Nov 2
Current: £3,050 GBP|Low: £523 GBP|High: £3,050 GBP|Avg: £1,223 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 7£523 GBP
Retailer 10£585 GBP
Retailer 4£649 GBP
Retailer 12£666 GBP
Retailer 2£783 GBP
Retailer 8£993 GBP
Retailer 6£1,021 GBP
Retailer 3£1,375 GBP
Retailer 9£1,551 GBP
Retailer 11£1,593 GBP
Retailer 5£1,962 GBP
Do Amore Diamonds£3,050 GBP

43 data points across 12 retailers

14 retailers£523 GBP to £3,050 GBP

A
Cheapest Retailer
-
£523 GBP
A
Retailer 2
-
£585 GBP
$785 USD
View
A
Retailer 3
-
£629 GBP
$843 USD
View
A
Retailer 4
-
£649 GBP
$871 USD
View
B+
Retailer 5
-
£666 GBP
$893 USD
View
A
Retailer 6
-
£783 GBP
View
A
Retailer 7
-
£993 GBP
A$2,048 AUD
View
A
Retailer 8
-
£1,021 GBP
ZAR 22,111 ZAR
View
B+
Retailer 9
-
£1,375 GBP
View
B+
Retailer 10
-
£1,551 GBP
$2,080 USD
View
B
Retailer 11
-
£1,593 GBP
$2,137 USD
View
B
Retailer 12
-
£1,617 GBP
$2,169 USD
View
B
Retailer 13
-
£1,962 GBP
View
Most Expensive
B
Do Amore Diamonds
27-AF7763797 · Nov 2
£3,050 GBP
$4,090 USD
View
13 more retailers have this diamond
Prices start from £523 GBPSave up to £2,527 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
£523 GBP