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Heart|Natural|GIA

3.03ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 609

Certificate GIA 609

Diamond specifications and retailer prices

From $39,603 AUD
As of November 6, 2026
Save $6,693 AUD (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $46,296 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 3.03ct natural heart diamond

This 3.03ct natural heart sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from $39,603 to $46,296, a $6,693 spread on the same certified stone. Blue Nile lists it at $46,296. 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

3.03
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 609
Dimensions8.92 × 10.28 × 5.75 mm
L/W Ratio1.15
Top View
8.92 mm10.28 mm3.03 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 609
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $46,296 AUD|Low: $39,603 AUD|High: $46,296 AUD|Avg: $42,119 AUD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$39,603 AUD
Retailer 3$42,546 AUD
Blue Nile$46,296 AUD

2 data points across 3 retailers

3 retailers$39,603 AUD to $46,296 AUD

B+
Cheapest Retailer
-
$39,603 AUD
B
Retailer 2
-
$42,546 AUD
View
Most Expensive
B
Blue Nile
18833566 · Nov 5
$46,296 AUD
$31,810 USD
View
2 more retailers have this diamond
Prices start from $39,603 AUDSave up to $6,693 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.

B+
3.03ct Heart
$39,603 AUD