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Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 6555315155

Certificate GIA 6555315155

Diamond specifications and retailer prices

From $5,763 NZD
As of November 6, 2026
Save $2,032 NZD (26%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,795 NZD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two 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 6555315155. Listed at 8 retailers as of November 6, 2026, with prices from $5,763 to $7,795, a $2,032 spread on the same certified stone. GemTrove lists it at $7,795. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555315155
Dimensions6.38 × 6.26 × 4.52 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.38 mm6.26 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555315155
Side View
Table 71.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 72.1%

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: $5,763 NZD|Low: $5,132 NZD|High: $7,582 NZD|Avg: $6,331 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$5,763 NZD
Retailer 3$5,843 NZD
Retailer 4$5,949 NZD
Retailer 7$6,045 NZD
Retailer 2$6,303 NZD
Retailer 6$6,858 NZD
Retailer 5$6,938 NZD

46 data points across 7 retailers

8 retailers$5,763 NZD to $7,795 NZD

A
Cheapest Retailer
-
$5,763 NZD
Retailer 2
-
$5,843 NZD
View
Price last confirmed 7 days ago
Retailer 3
-
$6,045 NZD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$6,303 NZD
View
B+
Retailer 5
-
$6,858 NZD
View
Retailer 6
-
$6,938 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$7,331 NZD
View
Most Expensive
B+
GemTrove
GT-N-01307688-98 · Nov 6
$7,795 NZD
A$6,648 AUD
View
7 more retailers have this diamond
Prices start from $5,763 NZDSave up to $2,032 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.

A
1.51ct Princess
$5,763 NZD