Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 1555935332

Certificate GIA 1555935332

Diamond specifications and retailer prices

From $3,077 USD
As of November 6, 2026
Save $1,127 USD (27%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,204 USD 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 1555935332. Listed at 7 retailers as of November 6, 2026, with prices from $3,077 to $4,204, a $1,127 spread on the same certified stone. GemTrove lists it at $4,204. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555935332
Dimensions6.24 × 6.18 × 4.61 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.24 mm6.18 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555935332
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.5%

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: $3,077 USD|Low: $3,077 USD|High: $4,170 USD|Avg: $3,555 USD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$3,077 USD
Retailer 5$3,325 USD
Retailer 2$3,556 USD
Retailer 4$3,870 USD
Retailer 3$3,911 USD

46 data points across 5 retailers

7 retailers$3,077 USD to $4,204 USD

A
Cheapest Retailer
-
$3,077 USD
Retailer 2
-
$3,325 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$3,556 USD
View
B+
Retailer 4
-
$3,870 USD
View
Retailer 5
-
$3,911 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,916 USD
View
Most Expensive
B+
GemTrove
GT-N-01307717-98 · Nov 6
$4,204 USD
A$6,468 AUD
View
6 more retailers have this diamond
Prices start from $3,077 USDSave up to $1,127 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.

A
1.51ct Princess
$3,077 USD