Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 1563662165

Certificate GIA 1563662165

Diamond specifications and retailer prices

From $515 USD
As of November 4, 2026
Save $346 USD (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,292 USD 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
Color
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: $1,292 USD|Low: $515 USD|High: $1,754 USD|Avg: $785 USD|-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$515 USD
Retailer 9$558 USD
Retailer 13$601 USD
Retailer 6$602 USD
Retailer 12$644 USD
Retailer 14$644 USD
Retailer 2$681 USD
Retailer 3$699 USD
Retailer 4$703 USD
Retailer 5$755 USD
Retailer 7$824 USD
Retailer 10$861 USD
MOH London$1,292 USD
Retailer 8$1,751 USD

9 data points across 14 retailers

14 retailers$515 USD to $861 USD

B+
Cheapest Retailer
-
$515 USD
Final sale: no returns
B
Retailer 2
-
$558 USD
View
B
Retailer 3
-
$601 USD
View
Retailer 4
-
$602 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$644 USD
View
B
Retailer 6
-
$644 USD
View
B
Retailer 7
-
$681 USD
View
B
Retailer 8
-
$699 USD
View
B
Retailer 9
-
$703 USD
View
C
Retailer 10
-
$755 USD
View
C
Retailer 11
-
$824 USD
View
C
Retailer 12
-
$861 USD
View
Most Expensive
MOH London
CA0F46325 · Nov 2
$1,292 USD
£1,017 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $515 USDSave up to $346 USD

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
$515 USD