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Cushion|Lab Grown|IGI

3.09ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG843690392

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843690392

Diamond specifications and retailer prices

From £676 GBP
€863 EUR
As of October 29, 2026
Save £1,322 GBP (66%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,998 GBP at With Clarity · As of October 30, 2026
View at With Clarity

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 LG843690392 or 843690392. Listed at 6 retailers as of October 29, 2026, with prices from £676 to £1,998, a £1,322 spread on the same certified stone. With Clarity lists it at £1,998. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843690392
Dimensions10.30 × 7.40 × 5.06 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.30 mm7.40 mm3.09 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843690392
Side View
Table 60.0%Crown 37.7°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.4%

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 29
Current: £676 GBP|Low: £669 GBP|High: £2,019 GBP|Avg: £1,351 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
With Clarity
October 29, 2026
Retailer 1£676 GBP
Retailer 4£723 GBP
Retailer 3£1,532 GBP
Retailer 2£1,869 GBP
With Clarity£1,998 GBP

7 data points across 5 retailers

6 retailers£676 GBP to £1,998 GBP

A
Cheapest Retailer
-
£676 GBP
€863 EUR
A
Retailer 2
-
£723 GBP
$969 USD
View
B+
Retailer 3
-
£1,519 GBP
$2,035 USD
View
B+
Retailer 4
-
£1,532 GBP
$2,053 USD
View
B+
Retailer 5
-
£1,869 GBP
View
Most Expensive
B
With Clarity
843690392 · Oct 30
£1,998 GBP
$2,677 USD
View
5 more retailers have this diamond
Prices start from £676 GBPSave up to £1,322 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
£676 GBP