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Round|Natural|IGI

2.10ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 731581885

Shape and cutting style on the report: Round brilliant

Certificate IGI 731581885

Diamond specifications and retailer prices

From $10,078 AUD
As of November 4, 2026
Save $9,424 AUD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $19,502 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.1ct natural round diamond

This 2.1ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 731581885. Listed at 13 retailers as of November 4, 2026, with prices from $10,078 to $19,502, a $9,424 spread on the same certified stone. NZ Jewellers lists it at $19,502. 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

2.10
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 731581885
Dimensions8.26 × 8.21 × 5.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.26 mm8.21 mm2.10 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 731581885
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.2%

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 4
Current: $10,898 AUD|Low: $10,078 AUD|High: $16,062 AUD|Avg: $12,046 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$10,078 AUD
Retailer 7$10,735 AUD
Retailer 1$10,898 AUD
Retailer 4$10,965 AUD
Retailer 8$11,839 AUD
Retailer 2$12,002 AUD
Retailer 3$13,388 AUD
Retailer 5$15,828 AUD

40 data points across 8 retailers

13 retailers$10,078 AUD to $19,502 AUD

A
Cheapest Retailer
-
$10,078 AUD
A
Retailer 2
-
$10,735 AUD
View
Retailer 3
-
$10,762 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$10,898 AUD
View
A
Retailer 5
-
$10,965 AUD
View
B+
Retailer 6
-
$11,659 AUD
View
B+
Retailer 7
-
$11,839 AUD
View
B+
Retailer 8
-
$11,907 AUD
View
B+
Retailer 9
-
$12,002 AUD
View
B+
Retailer 10
-
$13,388 AUD
View
B+
Retailer 11
-
$13,454 AUD
View
B
Retailer 12
-
$15,828 AUD
View
Most Expensive
B
NZ Jewellers
bd0dc02f-bb55-4897-9f7b-387aad5f15dd · Nov 5
$19,502 AUD
$13,652 USD
View
12 more retailers have this diamond
Prices start from $10,078 AUDSave up to $9,424 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
2.10ct Round
$10,078 AUD