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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 $175,414 CAD
$125,574 USD
As of October 30, 2026
Save $112,415 CAD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $287,829 CAD at MOH London · As of October 29, 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 29, 2026, with prices from $175,414 to $287,829, a $112,415 spread on the same certified stone. MOH London lists it at $287,829. 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
Color
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: $287,829 CAD|Low: $175,414 CAD|High: $361,160 CAD|Avg: $212,623 CAD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5$175,414 CAD
Retailer 7$176,402 CAD
Retailer 2$178,945 CAD
Retailer 4$189,657 CAD
Retailer 6$190,955 CAD
Retailer 3$222,430 CAD
MOH London$287,829 CAD

14 data points across 7 retailers

7 retailers$175,414 CAD to $287,829 CAD

B+
Cheapest Retailer
-
$175,414 CAD
$125,574 USD
B+
Retailer 2
-
$176,402 CAD
$126,281 USD
View
B+
Retailer 3
-
$178,945 CAD
£100,867 GBP
View
B+
Retailer 4
-
$189,657 CAD
$135,770 USD
View
B+
Retailer 5
-
$190,955 CAD
$136,699 USD
View
B
Retailer 6
-
$222,430 CAD
€151,649 EUR
View
Most Expensive
B
MOH London
910A97658 · Oct 29
$287,829 CAD
£162,243 GBP
View
6 more retailers have this diamond
Prices start from $175,414 CADSave up to $112,415 CAD

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
$175,414 CAD