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Cushion|Lab Grown|IGI

3.09ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG821643794

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821643794

Diamond specifications and retailer prices

From £563 GBP
$755 USD
As of October 31, 2026
Save £2,339 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,094 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG821643794 or 821643794. Listed at 16 retailers as of October 31, 2026, with a 415% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821643794
Dimensions10.41 × 7.42 × 4.79 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.41 mm7.42 mm3.09 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821643794
Side View
Table 66.0%Crown 40.4°Girdle: MED-THKPavilion 35.6°Culet: NoneDepth 64.6%

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 31
Current: £3,094 GBP|Low: £563 GBP|High: £3,094 GBP|Avg: £1,570 GBP
Rare Carat
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 3£563 GBP
Retailer 4£716 GBP
Retailer 9£836 GBP
Retailer 15£904 GBP
Retailer 10£934 GBP
Retailer 6£1,322 GBP
Retailer 8£1,359 GBP
Retailer 12£1,523 GBP
Retailer 7£1,820 GBP
Retailer 13£1,990 GBP
Retailer 14£2,013 GBP
Retailer 11£2,076 GBP
Retailer 5£2,400 GBP
Retailer 2£2,458 GBP
Retailer 16£2,903 GBP
Rare Carat£3,094 GBP

19 data points across 16 retailers

16 retailers£563 GBP to £2,903 GBP

A
Cheapest Retailer
-
£563 GBP
$755 USD
Final sale: no returns
A
Retailer 2
-
£716 GBP
$960 USD
View
A
Retailer 3
-
£836 GBP
$1,120 USD
View
A
Retailer 4
-
£904 GBP
€1,154 EUR
View
A
Retailer 5
-
£934 GBP
View
A
Retailer 6
-
£1,322 GBP
A$2,726 AUD
View
A
Retailer 7
-
£1,359 GBP
ZAR 29,427 ZAR
View
A
Retailer 8
-
£1,523 GBP
$2,041 USD
View
B+
Retailer 9
-
£1,820 GBP
View
B+
Retailer 10
-
£1,990 GBP
$2,667 USD
View
B+
Retailer 11
-
£2,013 GBP
$2,697 USD
View
B+
Retailer 12
-
£2,076 GBP
$2,781 USD
View
B+
Retailer 13
-
£2,400 GBP
SGD 4,346 SGD
View
B
Retailer 14
-
£2,458 GBP
View
B
Retailer 15
-
£2,903 GBP
A$5,984 AUD
View
Most Expensive
Rare Carat
CN200-28A · Oct 21
£3,094 GBP
$4,145 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from £563 GBPSave up to £2,339 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
£563 GBP