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Round|Natural|GIA

1.51ct N SI1 Round Natural Diamond

EX • N/SI1 • GIA 1465591279

Certificate GIA 1465591279

Diamond specifications and retailer prices

From $2,535 USD
As of November 5, 2026
Save $2,821 USD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,356 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded N colour (tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1465591279. Listed at 10 retailers as of November 5, 2026, with prices from $2,535 to $5,356, a $2,821 spread on the same certified stone. NZ Jewellers lists it at $5,356. 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
N
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1465591279
Dimensions7.32 × 7.37 × 4.55 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Cert comments
Pinpoints are not shown.
Key to symbols
Crystal
Top View
7.32 mm7.37 mm1.51 ctN / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1465591279
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.0%

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 5
Current: $5,356 USD|Low: $2,535 USD|High: $5,643 USD|Avg: $3,415 USD|-5.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9$2,535 USD
Retailer 6$2,562 USD
Retailer 8$2,562 USD
Retailer 7$2,680 USD
Retailer 5$2,702 USD
Retailer 10$2,956 USD
Retailer 4$3,127 USD
Retailer 2$3,175 USD
Retailer 11$3,886 USD
Retailer 3$4,717 USD
NZ Jewellers$5,356 USD

27 data points across 11 retailers

10 retailers$2,535 USD to $5,356 USD

B+
Cheapest Retailer
-
$2,535 USD
B+
Retailer 2
-
$2,562 USD
View
Retailer 3
-
$2,562 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,680 USD
View
B+
Retailer 5
-
$2,702 USD
View
B+
Retailer 6
-
$2,956 USD
View
B+
Retailer 7
-
$3,127 USD
View
B+
Retailer 8
-
$3,175 USD
View
B
Retailer 9
-
$3,886 USD
View
Most Expensive
C
NZ Jewellers
56d8278c-31ff-4446-a58b-c5b81d160973 · Nov 5
$5,356 USD
View
9 more retailers have this diamond
Prices start from $2,535 USDSave up to $2,821 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+
1.51ct Round
$2,535 USD