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Round|Natural|IGI

0.75ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 809631466

Shape and cutting style on the report: Round brilliant

Certificate IGI 809631466

Diamond specifications and retailer prices

From $456 AUD
As of November 2, 2026
Save $557 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,722 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.75ct natural round diamond

This 0.75ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 809631466. Listed at 12 retailers as of November 2, 2026, with a 122% 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

0.75
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 809631466
Dimensions5.78 × 5.81 × 3.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.78 mm5.81 mm0.75 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 809631466
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 63.1%

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 2
Current: $917 AUD|Low: $456 AUD|High: $1,659 AUD|Avg: $918 AUD|+7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 5$456 AUD
Retailer 2$757 AUD
Retailer 4$768 AUD
Retailer 7$812 AUD
Retailer 1$917 AUD
Retailer 6$927 AUD
Retailer 3$1,013 AUD
Retailer 8$1,438 AUD

34 data points across 8 retailers

12 retailers$456 AUD to $1,013 AUD

A
Cheapest Retailer
-
$456 AUD
Retailer 2
-
$710 AUD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$757 AUD
View
A
Retailer 4
-
$768 AUD
View
Retailer 5
-
$782 AUD
View
Price last confirmed 38 days ago
Retailer 6
-
$812 AUD
View
Price last confirmed 11 days ago
Retailer 7
-
$819 AUD
View
Price last confirmed 35 days ago
B+
Retailer 8
-
$917 AUD
View
Retailer 9
-
$927 AUD
View
Price last confirmed 12 days ago
A
Retailer 10
-
$1,013 AUD
View
Retailer 11
-
$1,438 AUD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
d5d20561-cedc-4242-9399-d44206557526 · Oct 3
$2,722 AUD
$1,870 USD
View
Price last confirmed 34 days ago
11 more retailers have this diamond
Prices start from $456 AUDSave up to $557 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
0.75ct Round
$456 AUD