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Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 1563662165

Certificate GIA 1563662165

Diamond specifications and retailer prices

From $736 AUD
As of November 4, 2026
Save $494 AUD (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,845 AUD at MOH London · As of November 2, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1563662165. Listed at 14 retailers as of November 4, 2026, with a 67% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1563662165
Dimensions4.40 × 4.19 × 3.23 mm
L/W Ratio1.05
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.40 mm4.19 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceStrong
CertificateGIA 1563662165
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.0%

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: Nov 4
Current: $1,845 AUD|Low: $736 AUD|High: $2,506 AUD|Avg: $1,121 AUD|-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
November 6, 2026
Retailer 11$736 AUD
Retailer 9$797 AUD
Retailer 13$859 AUD
Retailer 6$860 AUD
Retailer 12$920 AUD
Retailer 14$920 AUD
Retailer 2$973 AUD
Retailer 3$999 AUD
Retailer 4$1,004 AUD
Retailer 5$1,079 AUD
Retailer 7$1,177 AUD
Retailer 10$1,230 AUD
MOH London$1,845 AUD
Retailer 8$2,501 AUD

9 data points across 14 retailers

14 retailers$736 AUD to $1,230 AUD

B+
Cheapest Retailer
-
$736 AUD
Final sale: no returns
B
Retailer 2
-
$797 AUD
View
B
Retailer 3
-
$859 AUD
View
Retailer 4
-
$860 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$920 AUD
View
B
Retailer 6
-
$920 AUD
View
B
Retailer 7
-
$973 AUD
View
B
Retailer 8
-
$999 AUD
View
B
Retailer 9
-
$1,004 AUD
View
C
Retailer 10
-
$1,079 AUD
View
C
Retailer 11
-
$1,177 AUD
View
C
Retailer 12
-
$1,230 AUD
View
Most Expensive
MOH London
CA0F46325 · Nov 2
$1,845 AUD
£1,017 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $736 AUDSave up to $494 AUD

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+
0.51ct Princess
$736 AUD