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Round|Natural|IGI

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 754512609

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512609

Diamond specifications and retailer prices

From $2,157 SGD
₹160,710 INR
As of October 31, 2026
Save $3,596 SGD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,753 SGD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 754512609. Listed at 21 retailers as of October 30, 2026, with prices from $2,157 to $5,753, a $3,596 spread on the same certified stone. NZ Jewellers lists it at $5,753. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 754512609
Dimensions6.49 × 6.53 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.49 mm6.53 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512609
Side View
Table 59.0%Crown 31.4°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.3%

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 31
Current: $5,753 SGD|Low: $2,157 SGD|High: $5,753 SGD|Avg: $3,087 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 16$2,157 SGD
Retailer 8$2,416 SGD
Retailer 7$2,485 SGD
Retailer 11$2,539 SGD
Retailer 10$2,551 SGD
Retailer 2$2,647 SGD
Retailer 3$2,751 SGD
Retailer 5$2,751 SGD
Retailer 18$2,774 SGD
Retailer 20$2,796 SGD
Retailer 4$2,879 SGD
Retailer 21$2,929 SGD
Retailer 6$3,022 SGD
Retailer 15$3,054 SGD
Retailer 9$3,158 SGD
Retailer 12$3,174 SGD
Retailer 17$3,382 SGD
Retailer 19$3,673 SGD
Retailer 14$4,131 SGD
Retailer 13$4,820 SGD
NZ Jewellers$5,753 SGD

23 data points across 21 retailers

21 retailers$2,157 SGD to $5,753 SGD

A
Cheapest Retailer
-
$2,157 SGD
₹160,710 INR
A
Retailer 2
-
$2,416 SGD
$1,890 USD
View
A
Retailer 3
-
$2,485 SGD
$1,944 USD
View
A
Retailer 4
-
$2,539 SGD
$1,986 USD
View
Final sale: no returns
A
Retailer 5
-
$2,551 SGD
View
A
Retailer 6
-
$2,647 SGD
£1,631 GBP
View
A
Retailer 7
-
$2,751 SGD
$2,152 USD
View
A
Retailer 8
-
$2,751 SGD
$2,152 USD
View
B+
Retailer 9
-
$2,774 SGD
$2,170 USD
View
A
Retailer 10
-
$2,796 SGD
$2,187 USD
View
A
Retailer 11
-
$2,879 SGD
$2,252 USD
View
B+
Retailer 12
-
$2,929 SGD
$2,291 USD
View
B+
Retailer 13
-
$3,022 SGD
$2,364 USD
View
A
Retailer 14
-
$3,054 SGD
£1,881 GBP
View
B+
Retailer 15
-
$3,158 SGD
£1,945 GBP
View
B+
Retailer 16
-
$3,174 SGD
$2,483 USD
View
B+
Retailer 17
-
$3,382 SGD
ZAR 42,738 ZAR
View
B+
Retailer 18
-
$3,673 SGD
€2,736 EUR
View
B
Retailer 19
-
$4,131 SGD
$3,231 USD
View
B
Retailer 20
-
$4,820 SGD
£2,969 GBP
View
Most Expensive
B
NZ Jewellers
8a27d3b3-6ae1-4384-927b-ca29b6703e37 · Oct 30
$5,753 SGD
$4,500 USD
View
20 more retailers have this diamond
Prices start from $2,157 SGDSave up to $3,596 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
$2,157 SGD