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Radiant|Lab Grown|IGI

3.09ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG816626969

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG816626969

Diamond specifications and retailer prices

From £366 GBP
As of November 4, 2026
Save £1,525 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,891 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816626969 or 816626969. Listed at 13 retailers as of November 4, 2026, with prices from £366 to £1,891, a £1,525 spread on the same certified stone. MOH London lists it at £1,891. 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
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816626969
Dimensions10.42 × 7.06 × 4.97 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.42 mm7.06 mm3.09 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816626969
Side View
Table 65.0%Crown 47.2°Girdle: MediumPavilion 35.5°Culet: NoneDepth 70.4%

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: Nov 4
Current: £1,891 GBP|Low: £352 GBP|High: £1,918 GBP|Avg: £826 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6£366 GBP
Retailer 10£410 GBP
Retailer 7£454 GBP
Retailer 4£556 GBP
Retailer 3£680 GBP
Retailer 8£707 GBP
Retailer 9£729 GBP
Retailer 2£985 GBP
Retailer 5£1,221 GBP
MOH London£1,891 GBP

30 data points across 10 retailers

13 retailers£366 GBP to £1,891 GBP

A
Cheapest Retailer
-
£366 GBP
A
Retailer 2
-
£410 GBP
View
Final sale: no returns
A
Retailer 3
-
£410 GBP
View
A
Retailer 4
-
£454 GBP
View
Retailer 5
-
£454 GBP
View
Price last confirmed 20 days ago
A
Retailer 6
-
£556 GBP
View
A
Retailer 7
-
£680 GBP
View
A
Retailer 8
-
£707 GBP
View
A
Retailer 9
-
£729 GBP
View
A
Retailer 10
-
£985 GBP
View
B+
Retailer 11
-
£1,195 GBP
View
B+
Retailer 12
-
£1,221 GBP
View
Most Expensive
B
MOH London
LG816626969 · Nov 5
£1,891 GBP
View
12 more retailers have this diamond
Prices start from £366 GBPSave up to £1,525 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 Radiant
£366 GBP