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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 $51,067 SGD
₹3,804,404 INR
As of October 31, 2026
Save $37,920 SGD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $88,988 SGD 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 $51,067 to $88,988, a $37,920 spread on the same certified stone. MOH London lists it at $88,988. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $88,988 SGD|Low: $50,951 SGD|High: $89,580 SGD|Avg: $63,542 SGD|-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$51,067 SGD
Retailer 14$55,316 SGD
Retailer 4$55,998 SGD
Retailer 6$57,345 SGD
Retailer 13$59,037 SGD
Retailer 15$60,364 SGD
Retailer 3$60,537 SGD
Retailer 7$60,806 SGD
Retailer 9$62,559 SGD
Retailer 10$65,165 SGD
Retailer 11$67,772 SGD
Retailer 8$68,946 SGD
Retailer 5$69,678 SGD
Retailer 12$70,378 SGD
MOH London$88,988 SGD

36 data points across 15 retailers

15 retailers$51,067 SGD to $88,988 SGD

A
Cheapest Retailer
-
$51,067 SGD
₹3,804,404 INR
Retailer 2
-
$55,316 SGD
$43,270 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$55,998 SGD
$43,803 USD
View
A
Retailer 4
-
$57,345 SGD
$44,857 USD
View
Final sale: no returns
A
Retailer 5
-
$59,037 SGD
$46,180 USD
View
A
Retailer 6
-
$60,364 SGD
View
Retailer 7
-
$60,537 SGD
£37,286 GBP
View
Price last confirmed 31 days ago
A
Retailer 8
-
$60,806 SGD
$47,564 USD
View
A
Retailer 9
-
$62,559 SGD
$48,935 USD
View
B+
Retailer 10
-
$65,165 SGD
$50,974 USD
View
B+
Retailer 11
-
$67,772 SGD
$53,013 USD
View
A
Retailer 12
-
$68,946 SGD
€51,363 EUR
View
B+
Retailer 13
-
$69,678 SGD
$54,504 USD
View
B+
Retailer 14
-
$70,378 SGD
$55,052 USD
View
Most Expensive
B+
MOH London
02C834C4E · Oct 29
$88,988 SGD
£54,810 GBP
View
14 more retailers have this diamond
Prices start from $51,067 SGDSave up to $37,920 SGD

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
$51,067 SGD