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0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 839658048

Shape and cutting style on the report: Round brilliant

Certificate IGI 839658048

Diamond specifications and retailer prices

From $801 NZD
As of November 6, 2026
Save $1,197 NZD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,998 NZD at MOH London · As of November 7, 2026
View at MOH London

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 839658048. Listed at 14 retailers as of November 6, 2026, with prices from $801 to $1,998, a $1,197 spread on the same certified stone. MOH London lists it at $1,998. 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

0.55
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 839658048
Dimensions5.20 × 5.24 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.20 mm5.24 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI 839658048
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.1%

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 6
Current: $1,998 NZD|Low: $653 NZD|High: $2,064 NZD|Avg: $1,198 NZD|-3.2%
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
November 7, 2026
Retailer 6$655 NZD
Retailer 4$801 NZD
Retailer 9$936 NZD
Retailer 14$936 NZD
Retailer 7$1,014 NZD
Retailer 11$1,099 NZD
Retailer 10$1,111 NZD
Retailer 8$1,126 NZD
Retailer 2$1,212 NZD
Retailer 3$1,236 NZD
Retailer 12$1,301 NZD
Retailer 5$1,331 NZD
Retailer 13$1,349 NZD
MOH London$1,998 NZD

19 data points across 14 retailers

14 retailers$801 NZD to $1,998 NZD

Retailer 1
-
$655 NZD
Price last confirmed 14 days ago
A
Retailer 2
-
$801 NZD
View
Final sale: no returns
A
Retailer 3
-
$936 NZD
View
A
Retailer 4
-
$936 NZD
View
A
Retailer 5
-
$1,014 NZD
View
B+
Retailer 6
-
$1,099 NZD
View
A
Retailer 7
-
$1,111 NZD
View
A
Retailer 8
-
$1,126 NZD
View
B+
Retailer 9
-
$1,212 NZD
View
B+
Retailer 10
-
$1,236 NZD
View
B+
Retailer 11
-
$1,301 NZD
View
B+
Retailer 12
-
$1,331 NZD
View
B+
Retailer 13
-
$1,349 NZD
View
Most Expensive
B
MOH London
3ECBB47B5 · Nov 7
$1,998 NZD
£872 GBP
View
13 more retailers have this diamond
Prices start from $801 NZDSave up to $1,197 NZD

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
0.55ct Round
$801 NZD