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Round|Natural|GIA

3.05ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2556676435

Certificate GIA 2556676435

Diamond specifications and retailer prices

From $18,426 AUD
As of November 5, 2026
Save $11,561 AUD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $29,987 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 3.05ct natural round diamond

This 3.05ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556676435. Listed at 14 retailers as of November 5, 2026, with prices from $18,426 to $29,987, a $11,561 spread on the same certified stone. NZ Jewellers lists it at $29,987. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556676435
Dimensions9.23 × 9.18 × 5.78 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
9.23 mm9.18 mm3.05 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556676435
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: 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: Nov 5
Current: $29,987 AUD|Low: $18,426 AUD|High: $29,987 AUD|Avg: $22,212 AUD|+15.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$18,426 AUD
Retailer 2$19,453 AUD
Retailer 6$19,499 AUD
Retailer 3$19,860 AUD
Retailer 11$21,185 AUD
Retailer 9$21,516 AUD
Retailer 4$22,052 AUD
Retailer 7$22,343 AUD
Retailer 8$22,523 AUD
Retailer 5$23,162 AUD
NZ Jewellers$29,987 AUD

35 data points across 11 retailers

14 retailers$18,426 AUD to $29,987 AUD

A
Cheapest Retailer
-
$18,426 AUD
A
Retailer 2
-
$19,453 AUD
View
A
Retailer 3
-
$19,499 AUD
View
Retailer 4
-
$19,860 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$21,185 AUD
View
A
Retailer 6
-
$21,516 AUD
View
B+
Retailer 7
-
$22,052 AUD
View
B+
Retailer 8
-
$22,343 AUD
View
B+
Retailer 9
-
$22,523 AUD
View
B+
Retailer 10
-
$23,162 AUD
View
Retailer 11
-
$23,343 AUD
View
Price last confirmed 56 days ago
Retailer 12
-
$23,443 AUD
View
Price last confirmed 54 days ago
Retailer 13
-
$27,773 AUD
View
Price last confirmed 54 days ago
Most Expensive
B
NZ Jewellers
dca08b1c-8522-4a21-8973-c38683a9371b · Nov 5
$29,987 AUD
$20,992 USD
View
13 more retailers have this diamond
Prices start from $18,426 AUDSave up to $11,561 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
$18,426 AUD