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Round|Natural|GIA

3.03ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2557379055

Certificate GIA 2557379055

Diamond specifications and retailer prices

From $36,609 AUD
$25,716 USD
As of October 31, 2026
Save $14,634 AUD (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $51,243 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 3.03ct natural round diamond

This 3.03ct 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 GIA 2557379055. Listed at 5 retailers as of October 31, 2026, with prices from $36,609 to $51,243, a $14,634 spread on the same certified stone. MOH London lists it at $51,243. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557379055
Dimensions9.32 × 9.36 × 5.65 mm
L/W Ratio1.00
Star length45%
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
9.32 mm9.36 mm3.03 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557379055
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $51,243 AUD|Low: $36,609 AUD|High: $53,666 AUD|Avg: $44,376 AUD|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$36,609 AUD
Retailer 3$39,674 AUD
Retailer 2$41,483 AUD
Retailer 5$46,482 AUD
MOH London$51,243 AUD

42 data points across 5 retailers

5 retailers$36,609 AUD to $51,243 AUD

A
Cheapest Retailer
-
$36,609 AUD
$25,716 USD
A
Retailer 2
-
$39,674 AUD
€26,542 EUR
View
A
Retailer 3
-
$41,483 AUD
£22,945 GBP
View
B+
Retailer 4
-
$46,482 AUD
$32,651 USD
View
Most Expensive
B
MOH London
7F4801932 · Nov 1
$51,243 AUD
£28,343 GBP
View
4 more retailers have this diamond
Prices start from $36,609 AUDSave up to $14,634 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
3.03ct Round
$36,609 AUD