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Round|Natural|IGI

1.60ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 572330913

Shape and cutting style on the report: Round brilliant

Certificate IGI 572330913

Diamond specifications and retailer prices

From $3,286 AUD
As of November 6, 2026
Save $3,123 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,922 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 572330913. Listed at 14 retailers as of November 4, 2026, with a 95% 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

1.60
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 572330913
Dimensions7.62 × 7.59 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.62 mm7.59 mm1.60 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 572330913
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.5%

Caratlytics Score

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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: $4,841 AUD|Low: $3,286 AUD|High: $6,717 AUD|Avg: $4,224 AUD|-4.9%
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 6, 2026
Retailer 12$3,286 AUD
Retailer 7$3,336 AUD
Retailer 2$3,457 AUD
Retailer 9$3,668 AUD
Retailer 11$3,668 AUD
Retailer 10$3,837 AUD
Retailer 8$3,868 AUD
Retailer 3$4,233 AUD
Retailer 4$4,508 AUD
Retailer 5$4,550 AUD
Retailer 1$4,841 AUD
Retailer 6$6,408 AUD

30 data points across 12 retailers

14 retailers$3,286 AUD to $6,408 AUD

A
Cheapest Retailer
-
$3,286 AUD
A
Retailer 2
-
$3,336 AUD
View
A
Retailer 3
-
$3,457 AUD
View
A
Retailer 4
-
$3,668 AUD
View
Retailer 5
-
$3,668 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$3,790 AUD
View
Price last confirmed 42 days ago
A
Retailer 7
-
$3,837 AUD
View
A
Retailer 8
-
$3,868 AUD
View
A
Retailer 9
-
$4,233 AUD
View
Retailer 10
-
$4,373 AUD
View
Price last confirmed 45 days ago
A
Retailer 11
-
$4,550 AUD
View
A
Retailer 12
-
$4,841 AUD
View
B+
Retailer 13
-
$6,408 AUD
View
Most Expensive
NZ Jewellers
94bafca9-eb32-4367-82f1-4883e889e0c6 · Sep 25
$7,922 AUD
$5,546 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $3,286 AUDSave up to $3,123 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
1.60ct Round
$3,286 AUD