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Round|Natural|IGI

0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 630424737

Shape and cutting style on the report: Round brilliant

Certificate IGI 630424737

Diamond specifications and retailer prices

From $860 AUD
As of November 5, 2026
Save $1,837 AUD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,697 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 630424737. Listed at 11 retailers as of November 5, 2026, with prices from $860 to $2,697, a $1,837 spread on the same certified stone. NZ Jewellers lists it at $2,697. 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

0.81
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 630424737
Dimensions5.90 × 5.92 × 3.74 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
5.90 mm5.92 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 630424737
Side View
Table 58.0%Crown 36.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.3%

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 5
Current: $2,697 AUD|Low: $860 AUD|High: $2,697 AUD|Avg: $1,299 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 7$860 AUD
Retailer 5$926 AUD
Retailer 10$939 AUD
Retailer 8$993 AUD
Retailer 9$1,047 AUD
Retailer 6$1,110 AUD
Retailer 3$1,139 AUD
Retailer 2$1,260 AUD
Retailer 4$1,983 AUD
NZ Jewellers$2,697 AUD

38 data points across 10 retailers

11 retailers$860 AUD to $2,697 AUD

A
Cheapest Retailer
-
$860 AUD
Retailer 2
-
$926 AUD
View
Price last confirmed 8 days ago
Retailer 3
-
$993 AUD
View
Price last confirmed 60 days ago
A
Retailer 4
-
$993 AUD
View
B+
Retailer 5
-
$1,047 AUD
View
B+
Retailer 6
-
$1,110 AUD
View
A
Retailer 7
-
$1,139 AUD
View
A
Retailer 8
-
$1,260 AUD
View
B
Retailer 9
-
$1,983 AUD
View
Retailer 10
-
$2,697 AUD
View
Price last confirmed 66 days ago
Most Expensive
B
NZ Jewellers
aa7f5bd2-b465-44ac-9b85-4991bb5bb6e6 · Nov 5
$2,697 AUD
$1,888 USD
View
10 more retailers have this diamond
Prices start from $860 AUDSave up to $1,837 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
0.81ct Round
$860 AUD