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Round|Natural|GIA

2.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6555825565

Certificate GIA 6555825565

Diamond specifications and retailer prices

From $14,691 AUD
As of November 5, 2026
Save $5,784 AUD (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $20,475 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555825565. Listed at 6 retailers as of November 5, 2026, with prices from $14,691 to $20,475, a $5,784 spread on the same certified stone. NZ Jewellers lists it at $20,475. 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

2.50
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555825565
Dimensions8.63 × 8.56 × 5.46 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Needle, Pinpoint, Natural
Top View
8.63 mm8.56 mm2.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555825565
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $20,475 AUD|Low: $13,561 AUD|High: $20,475 AUD|Avg: $16,021 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7$13,561 AUD
Retailer 5$14,691 AUD
Retailer 3$14,916 AUD
Retailer 4$15,426 AUD
Retailer 2$15,985 AUD
Retailer 6$16,951 AUD
NZ Jewellers$20,475 AUD

9 data points across 7 retailers

6 retailers$14,691 AUD to $20,475 AUD

B+
Cheapest Retailer
-
$14,691 AUD
B+
Retailer 2
-
$14,916 AUD
View
B+
Retailer 3
-
$15,426 AUD
View
B
Retailer 4
-
$15,985 AUD
View
B
Retailer 5
-
$16,951 AUD
View
Most Expensive
B
NZ Jewellers
a59c1c8e-dda5-4954-9c28-1b5cd78a0508 · Nov 5
$20,475 AUD
$14,333 USD
View
5 more retailers have this diamond
Prices start from $14,691 AUDSave up to $5,784 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+
2.50ct Round
$14,691 AUD