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Princess|Natural|GIA

0.51ct D SI1 Princess Natural Diamond

EX • D/SI1 • GIA 5553251390

Certificate GIA 5553251390

Diamond specifications and retailer prices

From $1,050 NZD
As of November 4, 2026
Save $1,578 NZD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,574 NZD 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
Colour
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: $1,665 NZD|Low: $1,050 NZD|High: $2,663 NZD|Avg: $1,668 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$1,050 NZD
Retailer 2$1,389 NZD
Retailer 5$1,427 NZD
Retailer 6$1,468 NZD
Retailer 1$1,665 NZD
Retailer 8$1,713 NZD
Retailer 4$1,758 NZD
Retailer 3$2,627 NZD

46 data points across 8 retailers

14 retailers$1,050 NZD to $2,627 NZD

B+
Cheapest Retailer
-
$1,050 NZD
Final sale: no returns
Retailer 2
-
$1,138 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$1,227 NZD
View
Price last confirmed 29 days ago
Retailer 4
-
$1,227 NZD
View
Price last confirmed 38 days ago
Retailer 5
-
$1,315 NZD
View
Price last confirmed 66 days ago
Retailer 6
-
$1,315 NZD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$1,389 NZD
View
B+
Retailer 8
-
$1,427 NZD
View
B
Retailer 9
-
$1,468 NZD
View
B
Retailer 10
-
$1,665 NZD
View
Retailer 11
-
$1,713 NZD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$1,758 NZD
View
B
Retailer 13
-
$2,627 NZD
View
Most Expensive
NZ Jewellers
e2ce30f9-c38b-4233-9063-e8601873801b · Sep 30
$3,574 NZD
$2,009 USD
View
Price under review
13 more retailers have this diamond
Prices start from $1,050 NZDSave up to $1,578 NZD

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
$1,050 NZD