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3.51ct J IF Round Natural Diamond

EX • J/IF • IGI 623473637

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473637

Diamond specifications and retailer prices

From £19,543 GBP
As of November 5, 2026
Save £10,448 GBP (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £29,991 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.51ct natural round diamond

This 3.51ct natural round sits in the three to five carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 623473637. Listed at 10 retailers as of November 4, 2026, with prices from £19,543 to £29,991, a £10,448 spread on the same certified stone. MOH London lists it at £29,991. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

3.51
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 623473637
Dimensions9.85 × 9.93 × 5.89 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.85 mm9.93 mm3.51 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473637
Side View
Table 59.0%Crown 32.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.7%

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: Nov 5
Current: £29,991 GBP|Low: £19,543 GBP|High: £33,147 GBP|Avg: £23,233 GBP|-9.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£19,543 GBP
Retailer 3£19,649 GBP
Retailer 6£20,057 GBP
Retailer 4£20,285 GBP
Retailer 2£20,431 GBP
Retailer 9£22,316 GBP
Retailer 7£23,025 GBP
Retailer 10£23,520 GBP
Retailer 5£23,814 GBP
MOH London£29,991 GBP

21 data points across 10 retailers

10 retailers£19,543 GBP to £29,991 GBP

A
Cheapest Retailer
-
£19,543 GBP
A
Retailer 2
-
£19,649 GBP
View
A
Retailer 3
-
£20,057 GBP
View
A
Retailer 4
-
£20,285 GBP
View
Final sale: no returns
A
Retailer 5
-
£20,431 GBP
View
A
Retailer 6
-
£22,316 GBP
View
A
Retailer 7
-
£23,025 GBP
View
A
Retailer 8
-
£23,520 GBP
View
A
Retailer 9
-
£23,814 GBP
View
Most Expensive
B+
MOH London
0AB07119A · Nov 4
£29,991 GBP
View
9 more retailers have this diamond
Prices start from £19,543 GBPSave up to £10,448 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
3.51ct Round
£19,543 GBP