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Princess|Natural|GIA

0.51ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 1328318877

Certificate GIA 1328318877

Diamond specifications and retailer prices

From $626 CAD
As of November 6, 2026
Save $529 CAD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,729 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct natural princess diamond

This 0.51ct natural princess 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 stated by the retailer rather than the lab and certified by GIA 1328318877. Listed at 17 retailers as of November 4, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1328318877
Dimensions4.52 × 4.31 × 3.15 mm
L/W Ratio1.05
Key to symbols
Crystal, Feather
Top View
4.52 mm4.31 mm0.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1328318877
Side View
Table 74.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 73.1%

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: $1,729 CAD|Low: $626 CAD|High: $2,349 CAD|Avg: $978 CAD|-0.6%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9$626 CAD
Retailer 7$668 CAD
Retailer 8$670 CAD
Retailer 4$690 CAD
Retailer 18$749 CAD
Retailer 11$781 CAD
Retailer 15$807 CAD
Retailer 16$807 CAD
Retailer 10$832 CAD
Retailer 3$864 CAD
Retailer 2$913 CAD
Retailer 13$930 CAD
Retailer 5$945 CAD
Retailer 6$1,027 CAD
Retailer 12$1,109 CAD
Retailer 14$1,155 CAD
MOH London$1,729 CAD
Retailer 17$2,349 CAD

30 data points across 18 retailers

17 retailers$626 CAD to $1,155 CAD

A
Cheapest Retailer
-
$626 CAD
A
Retailer 2
-
$670 CAD
View
B+
Retailer 3
-
$690 CAD
View
Final sale: no returns
B+
Retailer 4
-
$749 CAD
View
B+
Retailer 5
-
$781 CAD
View
Retailer 6
-
$807 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$807 CAD
View
B
Retailer 8
-
$864 CAD
View
B+
Retailer 9
-
$913 CAD
View
B
Retailer 10
-
$930 CAD
View
B
Retailer 11
-
$932 CAD
View
B
Retailer 12
-
$945 CAD
View
B
Retailer 13
-
$1,027 CAD
View
B
Retailer 14
-
$1,109 CAD
View
B
Retailer 15
-
$1,155 CAD
View
Most Expensive
MOH London
A33FE9304 · Nov 1
$1,729 CAD
£975 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $626 CADSave up to $529 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.

A
0.51ct Princess
$626 CAD