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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 $3,238 SGD
As of November 5, 2026
Save $3,603 SGD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,841 SGD 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 $3,238 to $6,841, a $3,603 spread on the same certified stone. NZ Jewellers lists it at $6,841. 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
Colour
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: $6,841 SGD|Low: $3,238 SGD|High: $7,208 SGD|Avg: $4,362 SGD|-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$3,238 SGD
Retailer 6$3,272 SGD
Retailer 8$3,272 SGD
Retailer 7$3,423 SGD
Retailer 5$3,451 SGD
Retailer 10$3,776 SGD
Retailer 4$3,994 SGD
Retailer 2$4,055 SGD
Retailer 11$4,964 SGD
Retailer 3$6,025 SGD
NZ Jewellers$6,841 SGD

27 data points across 11 retailers

10 retailers$3,238 SGD to $6,841 SGD

B+
Cheapest Retailer
-
$3,238 SGD
B+
Retailer 2
-
$3,272 SGD
View
Retailer 3
-
$3,272 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$3,423 SGD
View
B+
Retailer 5
-
$3,451 SGD
View
B+
Retailer 6
-
$3,776 SGD
View
B+
Retailer 7
-
$3,994 SGD
View
B+
Retailer 8
-
$4,055 SGD
View
B
Retailer 9
-
$4,964 SGD
View
Most Expensive
C
NZ Jewellers
56d8278c-31ff-4446-a58b-c5b81d160973 · Nov 5
$6,841 SGD
$5,356 USD
View
9 more retailers have this diamond
Prices start from $3,238 SGDSave up to $3,603 SGD

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
$3,238 SGD