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Round|Natural|IGI

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 813687916

Shape and cutting style on the report: Round brilliant

Certificate IGI 813687916

Diamond specifications and retailer prices

From $243 AUD
As of November 6, 2026
Save $1,348 AUD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,591 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 813687916. Listed at 14 retailers as of November 4, 2026, with prices from $243 to $1,591, a $1,348 spread on the same certified stone. NZ Jewellers lists it at $1,591. 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

0.45
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 813687916
Dimensions4.94 × 4.99 × 3.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.94 mm4.99 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 813687916
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.9%

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 6
Current: $1,591 AUD|Low: $243 AUD|High: $1,611 AUD|Avg: $584 AUD|-1.3%
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 6, 2026
Retailer 2$243 AUD
Retailer 5$351 AUD
Retailer 6$392 AUD
Retailer 12$393 AUD
Retailer 11$410 AUD
Retailer 3$453 AUD
Retailer 14$473 AUD
Retailer 10$508 AUD
Retailer 8$563 AUD
Retailer 9$604 AUD
Retailer 7$706 AUD
Retailer 4$795 AUD
Retailer 13$809 AUD
NZ Jewellers$1,591 AUD

23 data points across 14 retailers

14 retailers$243 AUD to $1,591 AUD

A
Cheapest Retailer
-
$243 AUD
A
Retailer 2
-
$351 AUD
View
A
Retailer 3
-
$392 AUD
View
A
Retailer 4
-
$393 AUD
View
A
Retailer 5
-
$410 AUD
View
A
Retailer 6
-
$453 AUD
View
A
Retailer 7
-
$473 AUD
View
B+
Retailer 8
-
$508 AUD
View
B+
Retailer 9
-
$563 AUD
View
A
Retailer 10
-
$604 AUD
View
B+
Retailer 11
-
$706 AUD
View
B
Retailer 12
-
$795 AUD
View
B+
Retailer 13
-
$809 AUD
View
Most Expensive
B
NZ Jewellers
ad866bcd-340a-4b6b-b2f6-6286ce64cc9e · Nov 4
$1,591 AUD
$1,093 USD
View
13 more retailers have this diamond
Prices start from $243 AUDSave up to $1,348 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
0.45ct Round
$243 AUD