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Round|Natural|IGI

5.51ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 774673280

Shape and cutting style on the report: Round brilliant

Certificate IGI 774673280

Diamond specifications and retailer prices

From £29,813 GBP
₹3,804,404 INR
As of October 31, 2026
Save £22,138 GBP (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £51,951 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct natural round diamond

This 5.51ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 774673280. Listed at 15 retailers as of October 29, 2026, with prices from £29,813 to £51,951, a £22,138 spread on the same certified stone. MOH London lists it at £51,951. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 774673280
Dimensions11.24 × 11.30 × 7.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
11.24 mm11.30 mm5.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 774673280
Side View
Table 57.0%Crown 36.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 31
Current: £51,951 GBP|Low: £29,745 GBP|High: £52,297 GBP|Avg: £37,096 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 2£29,813 GBP
Retailer 14£32,294 GBP
Retailer 4£32,691 GBP
Retailer 6£33,478 GBP
Retailer 13£34,466 GBP
Retailer 15£35,241 GBP
Retailer 3£35,341 GBP
Retailer 7£35,498 GBP
Retailer 9£36,522 GBP
Retailer 10£38,043 GBP
Retailer 11£39,565 GBP
Retailer 8£40,250 GBP
Retailer 5£40,678 GBP
Retailer 12£41,087 GBP
MOH London£51,951 GBP

36 data points across 15 retailers

15 retailers£29,813 GBP to £51,951 GBP

A
Cheapest Retailer
-
£29,813 GBP
₹3,804,404 INR
Retailer 2
-
£32,294 GBP
$43,270 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£32,691 GBP
$43,803 USD
View
A
Retailer 4
-
£33,478 GBP
$44,857 USD
View
Final sale: no returns
A
Retailer 5
-
£34,466 GBP
$46,180 USD
View
A
Retailer 6
-
£35,241 GBP
SGD 63,809 SGD
View
Retailer 7
-
£35,341 GBP
View
Price last confirmed 31 days ago
A
Retailer 8
-
£35,498 GBP
$47,564 USD
View
A
Retailer 9
-
£36,522 GBP
$48,935 USD
View
B+
Retailer 10
-
£38,043 GBP
$50,974 USD
View
B+
Retailer 11
-
£39,565 GBP
$53,013 USD
View
A
Retailer 12
-
£40,250 GBP
€51,363 EUR
View
B+
Retailer 13
-
£40,678 GBP
$54,504 USD
View
B+
Retailer 14
-
£41,087 GBP
$55,052 USD
View
Most Expensive
B+
MOH London
02C834C4E · Oct 29
£51,951 GBP
View
14 more retailers have this diamond
Prices start from £29,813 GBPSave up to £22,138 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
5.51ct Round
£29,813 GBP