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Radiant|Lab Grown|IGI

4.91ct F VS2 Radiant Lab Grown Diamond

F/VS2 • IGI LG685530136

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

Certificate IGI LG685530136

Diamond specifications and retailer prices

From £1,375 GBP
As of October 31, 2026
Save £1,534 GBP (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,909 GBP at Diamond Exchange Canada · As of October 27, 2026
View at Diamond Exchange Canada

About this 4.91ct lab-grown radiant diamond

This 4.91ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included) and certified by IGI LG685530136 or 685530136. Listed at 2 retailers as of October 27, 2026, with prices from £1,375 to £2,909, a £1,534 spread on the same certified stone. Diamond Exchange Canada lists it at £2,909. 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

4.91
Carat
F
Colour
VS2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685530136
Dimensions12.00 × 8.25 × 5.60 mm
L/W Ratio1.45
Culet sizePointed
Top View
12.00 mm8.25 mm4.91 ctF / VS2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685530136
Side View
Table 66.0%Crown 46.2°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £2,909 GBP|Low: £2,826 GBP|High: £2,909 GBP|Avg: £2,862 GBP|+2.9%
June 15, 2026
Diamond Exchange Canada£2,909 GBP

11 data points across 1 retailer

2 retailers£1,375 GBP to £2,909 GBP

B+
Cheapest Retailer
-
£1,375 GBP
Most Expensive
C
Diamond Exchange Canada
1859747317 · Oct 27
£2,909 GBP
CA$5,414 CAD
View
1 more retailer has this diamond
Prices start from £1,375 GBPSave up to £1,534 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.

B+
4.91ct Radiant
£1,375 GBP