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Radiant|Lab Grown|IGI

4.51ct H VS1 Radiant Lab Grown Diamond

GD • H/VS1 • IGI LG685593187

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

Certificate IGI LG685593187

Diamond specifications and retailer prices

From £813 GBP
$1,090 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £813 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG685593187 or 685593187. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.51
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685593187
Dimensions12.11 × 8.10 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.11 mm8.10 mm4.51 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685593187
Side View
Table 67.0%Crown 43.1°Girdle: MediumPavilion 35°Culet: NoneDepth 66.4%

Caratlytics Score

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

Last verified: Nov 2
Current: £813 GBP|Low: £784 GBP|High: £1,296 GBP|Avg: £972 GBP|-37.2%
September 23, 2026
B2C Jewels£813 GBP

4 data points across 1 retailer

1 retailer

B+
B2C Jewels
27804951 · Nov 2
£813 GBP
$1,090 USD
View

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B+
4.51ct Radiant
£813 GBP