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Round|Natural|GIA

3.05ct H SI2 Round Natural Diamond

EX • H/SI2

Diamond specifications and retailer prices

From $30,197 AUD
$21,212 USD
As of October 31, 2026
Save $10,593 AUD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $43,063 AUD at Moon Ocean · As of September 30, 2026
View at Moon Ocean

About this 3.05ct natural round diamond

This 3.05ct 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. Listed at 5 retailers as of October 31, 2026, with a 35% 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

3.05
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions9.18 × 9.24 × 5.78 mm
L/W Ratio1.01
Top View
9.18 mm9.24 mm3.05 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.8%

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: $43,063 AUD|Low: $29,900 AUD|High: $47,476 AUD|Avg: $37,585 AUD|+2.4%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 9, 2026
Retailer 2$30,197 AUD
Retailer 9$32,894 AUD
Retailer 4$34,789 AUD
Retailer 3$35,189 AUD
Retailer 7$36,306 AUD
Retailer 6$36,571 AUD
Retailer 8$37,701 AUD
Retailer 10$40,790 AUD
Moon Ocean$43,063 AUD
Retailer 5$47,476 AUD

10 data points across 10 retailers

5 retailers$30,197 AUD to $40,790 AUD

A
Cheapest Retailer
-
$30,197 AUD
$21,212 USD
A
Retailer 2
-
$32,894 AUD
CA$32,092 CAD
View
B+
Retailer 3
-
$36,571 AUD
$25,689 USD
View
B+
Retailer 4
-
$40,790 AUD
$28,653 USD
View
Most Expensive
Moon Ocean
NVN-46240AD38-639 · Sep 30
$43,063 AUD
£23,818 GBP
View
Price last confirmed 32 days ago
4 more retailers have this diamond
Prices start from $30,197 AUDSave up to $10,593 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
3.05ct Round
$30,197 AUD