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Round|Natural|IGI

1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 530289660

Shape and cutting style on the report: Round brilliant

Certificate IGI 530289660

Diamond specifications and retailer prices

From $1,660 AUD
As of November 4, 2026
Save $2,726 AUD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,385 AUD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 530289660. Listed at 11 retailers as of November 4, 2026, with prices from $1,660 to $4,385, a $2,726 spread on the same certified stone. NZ Jewellers lists it at $4,385. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.1°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 530289660
Dimensions6.33 × 6.38 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.33 mm6.38 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 530289660
Side View
Table 59.5%Crown 36.1°Girdle: UNDPavilion 41.2°Culet: NoneDepth 63.4%

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: $4,385 AUD|Low: $1,383 AUD|High: $4,800 AUD|Avg: $2,247 AUD
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 5, 2026
Retailer 11$1,660 AUD
Retailer 6$1,721 AUD
Retailer 3$1,798 AUD
Retailer 14$1,798 AUD
Retailer 12$1,867 AUD
Retailer 4$1,900 AUD
Retailer 13$1,910 AUD
Retailer 10$1,990 AUD
Retailer 9$2,074 AUD
Retailer 5$2,138 AUD
Retailer 2$2,367 AUD
Retailer 7$2,548 AUD
Retailer 8$3,283 AUD
NZ Jewellers$4,385 AUD

29 data points across 14 retailers

11 retailers$1,660 AUD to $4,385 AUD

A
Cheapest Retailer
-
$1,660 AUD
Final sale: no returns
A
Retailer 2
-
$1,798 AUD
View
Retailer 3
-
$1,798 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,867 AUD
View
B+
Retailer 5
-
$1,910 AUD
View
A
Retailer 6
-
$1,990 AUD
View
A
Retailer 7
-
$2,074 AUD
View
A
Retailer 8
-
$2,367 AUD
View
B+
Retailer 9
-
$2,548 AUD
View
B+
Retailer 10
-
$3,283 AUD
View
Most Expensive
B
NZ Jewellers
775f44b5-3c46-4a1b-9b70-505a2bea8f94 · Nov 5
$4,385 AUD
$3,070 USD
View
10 more retailers have this diamond
Prices start from $1,660 AUDSave up to $2,726 AUD

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
$1,660 AUD