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Round|Natural|IGI

1.60ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 803629002

Shape and cutting style on the report: Round brilliant

Certificate IGI 803629002

Diamond specifications and retailer prices

From $3,306 AUD
As of November 6, 2026
Save $4,345 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,651 AUD at NZ Jewellers · As of November 5, 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 803629002. Listed at 12 retailers as of November 5, 2026, with prices from $3,306 to $7,651, a $4,345 spread on the same certified stone. NZ Jewellers lists it at $7,651. 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 angle35.4°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 803629002
Dimensions7.46 × 7.52 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.46 mm7.52 mm1.60 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629002
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.5%

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: $7,651 AUD|Low: $3,293 AUD|High: $8,088 AUD|Avg: $4,509 AUD|-5.4%
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
November 6, 2026
Retailer 13$3,306 AUD
Retailer 11$3,573 AUD
Retailer 12$3,660 AUD
Retailer 4$3,773 AUD
Retailer 6$3,807 AUD
Retailer 9$3,828 AUD
Retailer 3$3,853 AUD
Retailer 7$4,161 AUD
Retailer 10$4,550 AUD
Retailer 5$4,603 AUD
Retailer 2$4,760 AUD
Retailer 8$6,394 AUD
NZ Jewellers$7,651 AUD

41 data points across 13 retailers

12 retailers$3,306 AUD to $7,651 AUD

A
Cheapest Retailer
-
$3,306 AUD
A
Retailer 2
-
$3,573 AUD
View
A
Retailer 3
-
$3,660 AUD
View
Retailer 4
-
$3,773 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$3,807 AUD
View
A
Retailer 6
-
$3,828 AUD
View
A
Retailer 7
-
$3,853 AUD
View
A
Retailer 8
-
$4,161 AUD
View
B+
Retailer 9
-
$4,550 AUD
View
A
Retailer 10
-
$4,760 AUD
View
B+
Retailer 11
-
$6,394 AUD
View
Most Expensive
B
NZ Jewellers
723c1512-1343-4772-9bcd-4106ee9d679e · Nov 5
$7,651 AUD
$5,356 USD
View
11 more retailers have this diamond
Prices start from $3,306 AUDSave up to $4,345 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
$3,306 AUD