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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1246015618

Certificate GIA 1246015618

Diamond specifications and retailer prices

From $4,729 SGD
$3,700 USD
As of October 30, 2026
Save $7,286 SGD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,016 SGD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1246015618. Listed at 17 retailers as of October 30, 2026, with prices from $4,729 to $12,016, a $7,286 spread on the same certified stone. NZ Jewellers lists it at $12,016. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 1246015618
Dimensions7.27 × 7.31 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.27 mm7.31 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1246015618
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $12,016 SGD|Low: $4,729 SGD|High: $12,016 SGD|Avg: $7,212 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
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 4$4,729 SGD
Retailer 5$5,676 SGD
Retailer 12$5,759 SGD
Retailer 6$5,867 SGD
Retailer 14$6,102 SGD
Retailer 15$6,223 SGD
Retailer 8$6,508 SGD
Retailer 13$6,508 SGD
Retailer 16$6,508 SGD
Retailer 3$6,857 SGD
Retailer 10$6,963 SGD
Retailer 9$7,511 SGD
Retailer 7$7,926 SGD
Retailer 2$8,096 SGD
Retailer 17$8,111 SGD
Retailer 11$11,505 SGD
NZ Jewellers$12,016 SGD

19 data points across 17 retailers

17 retailers$4,729 SGD to $12,016 SGD

A
Cheapest Retailer
-
$4,729 SGD
$3,700 USD
B+
Retailer 2
-
$5,676 SGD
$4,440 USD
View
Retailer 3
-
$5,759 SGD
$4,505 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$5,867 SGD
$4,589 USD
View
B+
Retailer 5
-
$6,102 SGD
CA$6,629 CAD
View
B+
Retailer 6
-
$6,223 SGD
$4,868 USD
View
B
Retailer 7
-
$6,508 SGD
$5,091 USD
View
B
Retailer 8
-
$6,508 SGD
$5,091 USD
View
B
Retailer 9
-
$6,508 SGD
$5,091 USD
View
B
Retailer 10
-
$6,857 SGD
$5,364 USD
View
B
Retailer 11
-
$6,963 SGD
£4,289 GBP
View
B
Retailer 12
-
$7,511 SGD
$5,875 USD
View
Retailer 13
-
$7,926 SGD
$6,200 USD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$8,096 SGD
€6,031 EUR
View
B
Retailer 15
-
$8,111 SGD
$6,345 USD
View
B
Retailer 16
-
$11,505 SGD
£7,086 GBP
View
Most Expensive
C
NZ Jewellers
539454d3-ef7b-4ddb-ab23-0a64fd815bbf · Oct 30
$12,016 SGD
$9,399 USD
View
16 more retailers have this diamond
Prices start from $4,729 SGDSave up to $7,286 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.

A
1.51ct Round
$4,729 SGD