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Round|Natural|IGI

3.00ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 819641799

Shape and cutting style on the report: Round brilliant

Certificate IGI 819641799

Diamond specifications and retailer prices

From $15,155 AUD
As of November 5, 2026
Save $5,817 AUD (28%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $31,506 AUD at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 819641799. Listed at 8 retailers as of November 5, 2026, with a 38% 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

3.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 819641799
Dimensions9.15 × 9.22 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeVery Small
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.15 mm9.22 mm3.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819641799
Side View
Table 54.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: Very SmallDepth 61.9%

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: $17,413 AUD|Low: $13,536 AUD|High: $31,506 AUD|Avg: $19,776 AUD|-3.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9$13,536 AUD
Retailer 2$15,155 AUD
Rare Carat$17,413 AUD
Retailer 4$17,802 AUD
Retailer 5$20,386 AUD
Retailer 3$20,509 AUD
Retailer 8$20,972 AUD
Retailer 6$21,905 AUD
Retailer 7$22,937 AUD

31 data points across 9 retailers

8 retailers$15,155 AUD to $20,972 AUD

A
Cheapest Retailer
-
$15,155 AUD
A
Retailer 2
-
$17,413 AUD
View
A
Retailer 3
-
$17,802 AUD
View
A
Retailer 4
-
$20,386 AUD
View
A
Retailer 5
-
$20,509 AUD
View
A
Retailer 6
-
$20,972 AUD
View
Retailer 7
-
$21,905 AUD
View
Price last confirmed 11 days ago
Most Expensive
Rare Carat
BSD03677052_803677052 · Oct 7
$31,506 AUD
$22,055 USD
View
Price last confirmed 30 days ago
7 more retailers have this diamond
Prices start from $15,155 AUDSave up to $5,817 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
3.00ct Round
$15,155 AUD