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Round|Natural|IGI

1.02ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 623455487

Shape and cutting style on the report: Round brilliant

Certificate IGI 623455487

Diamond specifications and retailer prices

From $1,237 AUD
As of November 6, 2026
Save $1,798 AUD (59%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,054 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623455487. Listed at 21 retailers as of November 4, 2026, with a 145% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 623455487
Dimensions6.50 × 6.47 × 3.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.50 mm6.47 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623455487
Side View
Table 59.0%Crown 31.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,237 AUD|Low: $1,237 AUD|High: $3,060 AUD|Avg: $1,902 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$1,237 AUD
Retailer 9$1,561 AUD
Retailer 5$1,643 AUD
Retailer 8$1,733 AUD
Retailer 7$1,853 AUD
Retailer 6$1,857 AUD
Retailer 3$2,028 AUD
Retailer 2$2,147 AUD
Retailer 4$3,036 AUD

43 data points across 9 retailers

21 retailers$1,237 AUD to $3,036 AUD

A
Cheapest Retailer
-
$1,237 AUD
Retailer 2
-
$1,496 AUD
View
Price last confirmed 13 days ago
Retailer 3
-
$1,514 AUD
View
Price last confirmed 16 days ago
Retailer 4
-
$1,561 AUD
View
Price last confirmed 14 days ago
Retailer 5
-
$1,561 AUD
View
Price last confirmed 50 days ago
Retailer 6
-
$1,561 AUD
View
Price last confirmed 15 days ago
Retailer 7
-
$1,621 AUD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$1,643 AUD
View
Retailer 9
-
$1,733 AUD
View
Price last confirmed 13 days ago
Retailer 10
-
$1,801 AUD
View
Price last confirmed 14 days ago
Retailer 11
-
$1,801 AUD
View
Price last confirmed 45 days ago
B+
Retailer 12
-
$1,853 AUD
View
B+
Retailer 13
-
$1,857 AUD
View
Retailer 14
-
$1,918 AUD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
$1,918 AUD
View
B+
Retailer 16
-
$2,028 AUD
View
A
Retailer 17
-
$2,147 AUD
View
B
Retailer 18
-
$3,036 AUD
View
Retailer 19
-
$3,807 AUD
View
Price last confirmed 14 days ago
Retailer 20
-
$3,807 AUD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
2863cce1-2ee1-434b-b7f9-9a7a1c7f525a · Oct 30
$4,054 AUD
$2,838 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $1,237 AUDSave up to $1,798 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
1.02ct Round
$1,237 AUD