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Radiant|Natural|IGI

0.51ct H SI2 Radiant Natural Diamond

VG • H/SI2 • IGI 741596999

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

Certificate IGI 741596999

Diamond specifications and retailer prices

From £209 GBP
₹26,688 INR
As of October 30, 2026
Save £449 GBP (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £658 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 741596999. Listed at 6 retailers as of October 26, 2026, with prices from £209 to £658, a £449 spread on the same certified stone. MOH London lists it at £658. 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

0.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle43.9°
Pavilion angle32.2°
OriginNatural
Grading LabIGI
CertificateIGI 741596999
Dimensions5.08 × 3.96 × 2.72 mm
L/W Ratio1.28
Culet sizePointed
Top View
5.08 mm3.96 mm0.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 741596999
Side View
Table 68.0%Crown 43.9°Girdle: ThickPavilion 32.2°Culet: NoneDepth 68.7%

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 30
Current: £658 GBP|Low: £208 GBP|High: £683 GBP|Avg: £422 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3£209 GBP
Retailer 4£356 GBP
Retailer 5£382 GBP
Retailer 6£394 GBP
Retailer 2£520 GBP
MOH London£658 GBP

44 data points across 6 retailers

6 retailers£209 GBP to £658 GBP

A
Cheapest Retailer
-
£209 GBP
₹26,688 INR
B+
Retailer 2
-
£356 GBP
View
B+
Retailer 3
-
£382 GBP
$512 USD
View
B+
Retailer 4
-
£394 GBP
$528 USD
View
B+
Retailer 5
-
£520 GBP
€663 EUR
View
Most Expensive
B
MOH London
BA1162924 · Oct 26
£658 GBP
View
5 more retailers have this diamond
Prices start from £209 GBPSave up to £449 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
0.51ct Radiant
£209 GBP