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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 $574 SGD
As of November 6, 2026
Save $486 SGD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,587 SGD 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
Colour
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: $1,587 SGD|Low: $574 SGD|High: $2,156 SGD|Avg: $897 SGD|-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$574 SGD
Retailer 7$613 SGD
Retailer 8$615 SGD
Retailer 4$633 SGD
Retailer 18$687 SGD
Retailer 11$716 SGD
Retailer 15$741 SGD
Retailer 16$741 SGD
Retailer 10$764 SGD
Retailer 3$793 SGD
Retailer 2$838 SGD
Retailer 13$854 SGD
Retailer 5$868 SGD
Retailer 6$942 SGD
Retailer 12$1,018 SGD
Retailer 14$1,060 SGD
MOH London$1,587 SGD
Retailer 17$2,156 SGD

30 data points across 18 retailers

17 retailers$574 SGD to $1,060 SGD

A
Cheapest Retailer
-
$574 SGD
A
Retailer 2
-
$615 SGD
View
B+
Retailer 3
-
$633 SGD
View
Final sale: no returns
B+
Retailer 4
-
$687 SGD
View
B+
Retailer 5
-
$716 SGD
View
Retailer 6
-
$741 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$741 SGD
View
B
Retailer 8
-
$793 SGD
View
B+
Retailer 9
-
$838 SGD
View
B
Retailer 10
-
$854 SGD
View
B
Retailer 11
-
$855 SGD
View
B
Retailer 12
-
$868 SGD
View
B
Retailer 13
-
$942 SGD
View
B
Retailer 14
-
$1,018 SGD
View
B
Retailer 15
-
$1,060 SGD
View
Most Expensive
MOH London
A33FE9304 · Nov 1
$1,587 SGD
£975 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $574 SGDSave up to $486 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
0.51ct Princess
$574 SGD