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1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 2428630036

Certificate GIA 2428630036

Diamond specifications and retailer prices

From $4,164 SGD
As of November 5, 2026
Save $5,031 SGD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,195 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2428630036. Listed at 11 retailers as of November 5, 2026, with prices from $4,164 to $9,195, a $5,031 spread on the same certified stone. NZ Jewellers lists it at $9,195. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2428630036
Dimensions7.29 × 7.32 × 4.58 mm
L/W Ratio1.00
Top View
7.29 mm7.32 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2428630036
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.6%

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: $9,195 SGD|Low: $4,164 SGD|High: $9,195 SGD|Avg: $5,518 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14$4,164 SGD
Retailer 3$4,276 SGD
Retailer 5$4,580 SGD
Retailer 12$4,644 SGD
Retailer 6$5,266 SGD
Retailer 8$5,278 SGD
Retailer 9$5,278 SGD
Retailer 10$5,278 SGD
Retailer 13$5,466 SGD
Retailer 7$5,924 SGD
Retailer 11$6,090 SGD
Retailer 4$6,279 SGD
Retailer 2$6,799 SGD
NZ Jewellers$9,195 SGD

34 data points across 14 retailers

11 retailers$4,164 SGD to $9,195 SGD

B+
Cheapest Retailer
-
$4,164 SGD
B
Retailer 2
-
$4,580 SGD
View
B
Retailer 3
-
$4,644 SGD
View
B
Retailer 4
-
$5,278 SGD
View
Retailer 5
-
$5,278 SGD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$5,278 SGD
View
B
Retailer 7
-
$5,466 SGD
View
B
Retailer 8
-
$5,924 SGD
View
B
Retailer 9
-
$6,090 SGD
View
B
Retailer 10
-
$6,799 SGD
View
Most Expensive
C
NZ Jewellers
78ce4ef3-6b18-4628-9613-46d7894a51ad · Nov 5
$9,195 SGD
$7,199 USD
View
10 more retailers have this diamond
Prices start from $4,164 SGDSave up to $5,031 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
$4,164 SGD