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Radiant|Lab Grown|IGI

3.09ct F VVS1 Radiant Lab Grown Diamond

VG • F/VVS1 • IGI LG850604917

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

Certificate IGI LG850604917

Diamond specifications and retailer prices

From £428 GBP
As of November 4, 2026
Save £2,068 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,496 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG850604917 or 850604917. Listed at 21 retailers as of November 1, 2026, with prices from £428 to £2,496, a £2,068 spread on the same certified stone. Rare Carat lists it at £2,496. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.09
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850604917
Dimensions10.87 × 7.18 × 4.55 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.87 mm7.18 mm3.09 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850604917
Side View
Table 65.0%Crown 40.9°Girdle: MediumPavilion 30.8°Culet: NoneDepth 63.4%

Caratlytics Score

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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 4
Current: £2,496 GBP|Low: £428 GBP|High: £2,496 GBP|Avg: £1,156 GBP
Rare Carat
Retailer 2
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November 5, 2026
Retailer 7£428 GBP
Retailer 5£479 GBP
Retailer 17£480 GBP
Retailer 9£531 GBP
Retailer 13£575 GBP
Retailer 3£630 GBP
Retailer 10£713 GBP
Retailer 11£791 GBP
Retailer 20£807 GBP
Retailer 2£822 GBP
Retailer 6£1,121 GBP
Retailer 4£1,125 GBP
Retailer 16£1,153 GBP
Retailer 12£1,330 GBP
Retailer 19£1,397 GBP
Retailer 15£1,610 GBP
Retailer 14£1,720 GBP
Retailer 8£1,779 GBP
Retailer 21£1,975 GBP
Retailer 18£2,307 GBP
Rare Carat£2,496 GBP

13 data points across 21 retailers

21 retailers£428 GBP to £2,496 GBP

A
Cheapest Retailer
-
£428 GBP
A
Retailer 2
-
£479 GBP
View
Final sale: no returns
A
Retailer 3
-
£480 GBP
View
A
Retailer 4
-
£531 GBP
View
A
Retailer 5
-
£575 GBP
View
A
Retailer 6
-
£630 GBP
View
A
Retailer 7
-
£713 GBP
View
A
Retailer 8
-
£791 GBP
View
A
Retailer 9
-
£807 GBP
View
A
Retailer 10
-
£822 GBP
View
B+
Retailer 11
-
£1,121 GBP
View
B+
Retailer 12
-
£1,125 GBP
View
B+
Retailer 13
-
£1,153 GBP
View
B+
Retailer 14
-
£1,330 GBP
View
B
Retailer 15
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£1,397 GBP
View
B+
Retailer 16
-
£1,610 GBP
View
B
Retailer 17
-
£1,720 GBP
View
B
Retailer 18
-
£1,779 GBP
View
B
Retailer 19
-
£1,975 GBP
View
B
Retailer 20
-
£2,307 GBP
View
Most Expensive
B
Rare Carat
JRN-257_l_850604917 · Nov 1
£2,496 GBP
$3,370 USD
View
20 more retailers have this diamond
Prices start from £428 GBPSave up to £2,068 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
£428 GBP