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Round|Natural|GIA

3.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557312305

Certificate GIA 2557312305

Diamond specifications and retailer prices

From $40,642 AUD
$28,549 USD
As of October 30, 2026
Save $22,261 AUD (35%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $62,903 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557312305. Listed at 14 retailers as of October 30, 2026, with prices from $40,642 to $62,903, a $22,261 spread on the same certified stone. MOH London lists it at $62,903. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 2557312305
Dimensions9.05 × 9.12 × 5.78 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.05 mm9.12 mm3.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557312305
Side View
Table 55.0%Crown 36.5°Girdle: MediumPavilionCulet: NoneDepth 63.6%

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 30
Current: $62,903 AUD|Low: $40,378 AUD|High: $64,707 AUD|Avg: $47,698 AUD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$40,642 AUD
Retailer 6$40,752 AUD
Retailer 4$40,845 AUD
Retailer 11$42,127 AUD
Retailer 8$43,199 AUD
Retailer 2$44,744 AUD
Retailer 3$46,872 AUD
Retailer 9$48,360 AUD
Retailer 7$48,997 AUD
Retailer 12$50,220 AUD
Retailer 5$52,213 AUD
MOH London$62,903 AUD

41 data points across 12 retailers

14 retailers$40,642 AUD to $62,903 AUD

A
Cheapest Retailer
-
$40,642 AUD
$28,549 USD
A
Retailer 2
-
$40,752 AUD
$28,626 USD
View
Final sale: no returns
Retailer 3
-
$40,845 AUD
View
Price last confirmed 28 days ago
Retailer 4
-
$42,127 AUD
$29,592 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$42,701 AUD
$29,995 USD
View
Price last confirmed 44 days ago
B+
Retailer 6
-
$43,199 AUD
$30,345 USD
View
B+
Retailer 7
-
$44,744 AUD
£24,748 GBP
View
Retailer 8
-
$46,872 AUD
$32,925 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$48,360 AUD
$33,970 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$48,997 AUD
€32,779 EUR
View
Retailer 11
-
$50,220 AUD
$35,277 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$50,905 AUD
$35,758 USD
View
Price last confirmed 44 days ago
B
Retailer 13
-
$52,213 AUD
ZAR 592,514 ZAR
View
Most Expensive
B
MOH London
31F277C67 · Nov 1
$62,903 AUD
£34,792 GBP
View
13 more retailers have this diamond
Prices start from $40,642 AUDSave up to $22,261 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
$40,642 AUD