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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6561273899

Certificate GIA 6561273899

Diamond specifications and retailer prices

From $23,304 AUD
$16,370 USD
As of October 25, 2026
Save $13,656 AUD (37%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $36,960 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561273899. Listed at 15 retailers as of October 25, 2026, with prices from $23,304 to $36,960, a $13,656 spread on the same certified stone. MOH London lists it at $36,960. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6561273899
Dimensions8.59 × 8.63 × 5.44 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.59 mm8.63 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561273899
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

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 25
Current: $36,960 AUD|Low: $23,304 AUD|High: $37,206 AUD|Avg: $28,549 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7$23,304 AUD
Retailer 2$24,100 AUD
Retailer 10$24,902 AUD
Retailer 9$25,984 AUD
Retailer 8$27,283 AUD
Retailer 6$27,556 AUD
Retailer 11$28,149 AUD
Retailer 5$29,040 AUD
Retailer 3$29,232 AUD
Retailer 4$30,419 AUD
Retailer 12$33,348 AUD
MOH London$36,960 AUD

35 data points across 12 retailers

15 retailers$23,304 AUD to $36,960 AUD

A
Cheapest Retailer
-
$23,304 AUD
$16,370 USD
A
Retailer 2
-
$23,536 AUD
$16,533 USD
View
A
Retailer 3
-
$23,887 AUD
$16,779 USD
View
A
Retailer 4
-
$24,100 AUD
£13,330 GBP
View
A
Retailer 5
-
$24,902 AUD
$17,492 USD
View
Final sale: no returns
B+
Retailer 6
-
$25,984 AUD
$18,252 USD
View
B+
Retailer 7
-
$27,283 AUD
$19,165 USD
View
B+
Retailer 8
-
$27,556 AUD
€18,435 EUR
View
B+
Retailer 9
-
$28,149 AUD
$19,773 USD
View
B+
Retailer 10
-
$28,881 AUD
$20,287 USD
View
B+
Retailer 11
-
$29,040 AUD
£16,062 GBP
View
B+
Retailer 12
-
$29,232 AUD
$20,534 USD
View
B+
Retailer 13
-
$30,419 AUD
$21,368 USD
View
B
Retailer 14
-
$33,348 AUD
$23,425 USD
View
Most Expensive
B
MOH London
F455A4935 · Oct 29
$36,960 AUD
£20,443 GBP
View
14 more retailers have this diamond
Prices start from $23,304 AUDSave up to $13,656 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
2.50ct Round
$23,304 AUD