Princess|Natural|GIA

0.51ct D SI1 Princess Natural Diamond

EX • D/SI1 • GIA 5553251390

Certificate GIA 5553251390

Diamond specifications and retailer prices

From $590 USD
As of November 4, 2026
Save $887 USD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,009 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.51ct natural princess diamond

This 0.51ct natural princess sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553251390. Listed at 14 retailers as of November 4, 2026, with a 150% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553251390
Dimensions4.62 × 4.43 × 3.18 mm
L/W Ratio1.04
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
4.62 mm4.43 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553251390
Side View
Table 72.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 71.8%

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: $936 USD|Low: $590 USD|High: $1,497 USD|Avg: $938 USD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$590 USD
Retailer 2$781 USD
Retailer 5$802 USD
Retailer 6$825 USD
Retailer 1$936 USD
Retailer 8$963 USD
Retailer 4$988 USD
Retailer 3$1,477 USD

46 data points across 8 retailers

14 retailers$590 USD to $1,477 USD

B+
Cheapest Retailer
-
$590 USD
Final sale: no returns
Retailer 2
-
$640 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$690 USD
View
Price last confirmed 29 days ago
Retailer 4
-
$690 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$739 USD
View
Price last confirmed 66 days ago
Retailer 6
-
$739 USD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$781 USD
View
B+
Retailer 8
-
$802 USD
View
B
Retailer 9
-
$825 USD
View
B
Retailer 10
-
$936 USD
View
Retailer 11
-
$963 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$988 USD
View
B
Retailer 13
-
$1,477 USD
View
Most Expensive
NZ Jewellers
e2ce30f9-c38b-4233-9063-e8601873801b · Sep 30
$2,009 USD
View
Price under review
13 more retailers have this diamond
Prices start from $590 USDSave up to $887 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
$590 USD