Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 6522970143

Certificate GIA 6522970143

Diamond specifications and retailer prices

From $4,415 USD
As of November 5, 2026
Save $5,038 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,453 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 6522970143. Listed at 20 retailers as of November 5, 2026, with prices from $4,415 to $9,453, a $5,038 spread on the same certified stone. NZ Jewellers lists it at $9,453. 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
SymmetryExcellent
FluorescenceNone
Crown angle23.6°
Pavilion angle39.98°
OriginNatural
Grading LabGIA
CertificateGIA 6522970143
Dimensions6.29 × 6.28 × 4.51 mm
L/W Ratio1.00
Top View
6.29 mm6.28 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522970143
Side View
Table 74.0%Crown 23.6°Girdle: STK-THKPavilion 39.98°Culet: NoneDepth 71.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,298 USD|Low: $4,094 USD|High: $9,109 USD|Avg: $5,981 USD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$4,465 USD
Retailer 2$4,726 USD
Retailer 9$4,809 USD
Retailer 3$5,120 USD
Retailer 4$5,459 USD
Retailer 10$5,682 USD
Retailer 6$5,851 USD
Retailer 8$6,236 USD
Retailer 1$6,298 USD
Retailer 5$6,895 USD
Retailer 7$8,977 USD

46 data points across 11 retailers

20 retailers$4,415 USD to $9,453 USD

A
Cheapest Retailer
-
$4,415 USD
A
Retailer 2
-
$4,465 USD
View
B+
Retailer 3
-
$4,658 USD
View
B+
Retailer 4
-
$4,726 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,809 USD
View
B+
Retailer 6
-
$4,810 USD
View
B+
Retailer 7
-
$5,069 USD
View
Retailer 8
-
$5,120 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$5,120 USD
View
B+
Retailer 10
-
$5,120 USD
View
B+
Retailer 11
-
$5,257 USD
View
B+
Retailer 12
-
$5,459 USD
View
B+
Retailer 13
-
$5,612 USD
View
Retailer 14
-
$5,682 USD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$5,851 USD
View
B
Retailer 16
-
$6,260 USD
View
B+
Retailer 17
-
$6,298 USD
View
B+
Retailer 18
-
$6,895 USD
View
B
Retailer 19
-
$8,977 USD
View
Most Expensive
B
NZ Jewellers
5274aeab-c718-48bf-9f4e-8a8ecabfa146 · Nov 5
$9,453 USD
View
19 more retailers have this diamond
Prices start from $4,415 USDSave up to $5,038 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
$4,415 USD