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Round|Natural|IGI

0.91ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 815674379

Shape and cutting style on the report: Round brilliant

Certificate IGI 815674379

Diamond specifications and retailer prices

From $766 AUD
As of November 5, 2026
Save $2,403 AUD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,168 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.91ct natural round diamond

This 0.91ct 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 815674379. Listed at 12 retailers as of November 5, 2026, with prices from $766 to $3,168, a $2,403 spread on the same certified stone. NZ Jewellers lists it at $3,168. 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

0.91
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 815674379
Dimensions6.16 × 6.19 × 3.88 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeMedium
Top View
6.16 mm6.19 mm0.91 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815674379
Side View
Table 57.0%Crown 35.8°Girdle: MediumPavilion 41.2°Culet: MediumDepth 63.0%

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: $3,168 AUD|Low: $766 AUD|High: $3,294 AUD|Avg: $1,358 AUD|-3.8%
NZ Jewellers
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 8$766 AUD
Retailer 9$1,010 AUD
Retailer 3$1,040 AUD
Retailer 10$1,049 AUD
Retailer 4$1,074 AUD
Retailer 7$1,166 AUD
Retailer 2$1,199 AUD
Retailer 6$1,224 AUD
Retailer 12$1,259 AUD
Retailer 5$1,346 AUD
Retailer 11$1,873 AUD
NZ Jewellers$3,168 AUD

23 data points across 12 retailers

12 retailers$766 AUD to $3,168 AUD

A
Cheapest Retailer
-
$766 AUD
A
Retailer 2
-
$1,010 AUD
View
Retailer 3
-
$1,040 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,049 AUD
View
Retailer 5
-
$1,074 AUD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$1,166 AUD
View
A
Retailer 7
-
$1,199 AUD
View
A
Retailer 8
-
$1,224 AUD
View
A
Retailer 9
-
$1,259 AUD
View
A
Retailer 10
-
$1,346 AUD
View
B+
Retailer 11
-
$1,873 AUD
View
Most Expensive
B
NZ Jewellers
73dd6ff7-f892-4d8f-b344-4a756050168b · Nov 5
$3,168 AUD
$2,218 USD
View
11 more retailers have this diamond
Prices start from $766 AUDSave up to $2,403 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
0.91ct Round
$766 AUD