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1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 772672908

Shape and cutting style on the report: Round brilliant

Certificate IGI 772672908

Diamond specifications and retailer prices

From $1,581 SGD
As of November 4, 2026
Save $3,553 SGD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,135 SGD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 772672908. Listed at 12 retailers as of November 2, 2026, with prices from $1,581 to $5,135, a $3,553 spread on the same certified stone. NZ Jewellers lists it at $5,135. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 772672908
Dimensions6.40 × 6.44 × 4.06 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.40 mm6.44 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 772672908
Side View
Table 56.0%Crown 36.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.2%

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: Nov 4
Current: $2,424 SGD|Low: $1,579 SGD|High: $3,732 SGD|Avg: $2,325 SGD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 5$1,581 SGD
Retailer 3$1,867 SGD
Retailer 12$1,950 SGD
Retailer 10$1,954 SGD
Retailer 11$2,105 SGD
Retailer 4$2,134 SGD
Retailer 2$2,279 SGD
Retailer 6$2,360 SGD
Retailer 1$2,424 SGD
Retailer 9$2,569 SGD
Retailer 7$2,862 SGD
Retailer 8$3,686 SGD

27 data points across 12 retailers

12 retailers$1,581 SGD to $5,135 SGD

A
Cheapest Retailer
-
$1,581 SGD
A
Retailer 2
-
$1,950 SGD
View
A
Retailer 3
-
$1,954 SGD
View
Retailer 4
-
$2,105 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,279 SGD
View
B+
Retailer 6
-
$2,360 SGD
View
B+
Retailer 7
-
$2,424 SGD
View
B+
Retailer 8
-
$2,428 SGD
View
B+
Retailer 9
-
$2,569 SGD
View
B+
Retailer 10
-
$2,862 SGD
View
B
Retailer 11
-
$3,686 SGD
View
Most Expensive
C
NZ Jewellers
f71f03d1-b2ee-4a47-833a-e6b693c13220 · Nov 2
$5,135 SGD
$4,020 USD
View
11 more retailers have this diamond
Prices start from $1,581 SGDSave up to $3,553 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
1.03ct Round
$1,581 SGD