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Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 7508361844

Certificate GIA 7508361844

Diamond specifications and retailer prices

From $3,440 SGD
As of November 4, 2026
Save $4,591 SGD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,030 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 7508361844. Listed at 13 retailers as of November 4, 2026, with prices from $3,440 to $8,030, a $4,591 spread on the same certified stone. NZ Jewellers lists it at $8,030. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7508361844
Dimensions7.30 × 7.35 × 4.62 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Feather, Twinning Wisp, Crystal, Needle
Top View
7.30 mm7.35 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7508361844
Side View
Table 56.0%Crown 34.5°Girdle: STK-MEDPavilion 41.6°Culet: NoneDepth 63.0%

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 4
Current: $8,030 SGD|Low: $3,440 SGD|High: $8,030 SGD|Avg: $4,476 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
November 6, 2026
Retailer 7$3,440 SGD
Retailer 9$3,547 SGD
Retailer 11$3,841 SGD
Retailer 12$3,841 SGD
Retailer 6$3,989 SGD
Retailer 4$4,022 SGD
Retailer 5$4,206 SGD
Retailer 8$4,389 SGD
Retailer 10$4,432 SGD
Retailer 3$4,570 SGD
Retailer 2$5,070 SGD
NZ Jewellers$8,030 SGD

35 data points across 12 retailers

13 retailers$3,440 SGD to $8,030 SGD

B+
Cheapest Retailer
-
$3,440 SGD
B+
Retailer 2
-
$3,547 SGD
View
Retailer 3
-
$3,841 SGD
View
Price last confirmed 60 days ago
Retailer 4
-
$3,841 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$3,841 SGD
View
B+
Retailer 6
-
$3,989 SGD
View
B+
Retailer 7
-
$4,022 SGD
View
B+
Retailer 8
-
$4,206 SGD
View
B
Retailer 9
-
$4,389 SGD
View
Retailer 10
-
$4,432 SGD
View
Price last confirmed 60 days ago
B
Retailer 11
-
$4,432 SGD
View
B
Retailer 12
-
$5,070 SGD
View
Most Expensive
C
NZ Jewellers
c14ff665-9328-4d6b-9dba-aea7e48398d8 · Nov 5
$8,030 SGD
$6,287 USD
View
12 more retailers have this diamond
Prices start from $3,440 SGDSave up to $4,591 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
$3,440 SGD