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5.59ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2225330188

Certificate GIA 2225330188

Diamond specifications and retailer prices

From $222,806 NZD
$125,574 USD
As of October 30, 2026
Save $140,839 NZD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $363,645 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 5.59ct natural round diamond

This 5.59ct natural round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225330188. Listed at 7 retailers as of October 30, 2026, with prices from $222,806 to $363,645, a $140,839 spread on the same certified stone. MOH London lists it at $363,645. 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

5.59
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2225330188
Dimensions11.36 × 11.41 × 7.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
11.36 mm11.41 mm5.59 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2225330188
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $363,645 NZD|Low: $222,806 NZD|High: $458,734 NZD|Avg: $268,364 NZD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$222,806 NZD
Retailer 7$224,060 NZD
Retailer 2$229,195 NZD
Retailer 4$240,897 NZD
Retailer 6$242,545 NZD
Retailer 3$281,269 NZD
MOH London$363,645 NZD

16 data points across 7 retailers

7 retailers$222,806 NZD to $363,645 NZD

B+
Cheapest Retailer
-
$222,806 NZD
$125,574 USD
B+
Retailer 2
-
$224,060 NZD
$126,281 USD
View
B+
Retailer 3
-
$229,195 NZD
£101,712 GBP
View
B+
Retailer 4
-
$240,897 NZD
$135,770 USD
View
B+
Retailer 5
-
$242,545 NZD
$136,699 USD
View
B
Retailer 6
-
$281,269 NZD
€150,975 EUR
View
Most Expensive
B
MOH London
910A97658 · Nov 1
$363,645 NZD
£161,379 GBP
View
6 more retailers have this diamond
Prices start from $222,806 NZDSave up to $140,839 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.

B+
5.59ct Round
$222,806 NZD