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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1555796892

Certificate GIA 1555796892

Diamond specifications and retailer prices

From $21,794 AUD
HK$119,600 HKD
As of October 30, 2026
Save $17,570 AUD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $39,363 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 1555796892. Listed at 15 retailers as of October 29, 2026, with prices from $21,794 to $39,363, a $17,570 spread on the same certified stone. MOH London lists it at $39,363. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555796892
Dimensions8.57 × 8.61 × 5.39 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
8.57 mm8.61 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555796892
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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: $39,363 AUD|Low: $21,794 AUD|High: $40,994 AUD|Avg: $28,051 AUD|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 5$21,794 AUD
Retailer 15$23,270 AUD
Retailer 3$23,376 AUD
Retailer 7$24,025 AUD
Retailer 4$24,235 AUD
Retailer 12$24,278 AUD
Retailer 2$24,346 AUD
Retailer 6$24,785 AUD
Retailer 10$25,893 AUD
Retailer 11$27,436 AUD
Retailer 8$30,419 AUD
Retailer 9$30,927 AUD
Retailer 14$31,458 AUD
Retailer 13$35,516 AUD
MOH London$39,363 AUD

24 data points across 15 retailers

15 retailers$21,794 AUD to $39,363 AUD

A
Cheapest Retailer
-
$21,794 AUD
HK$119,600 HKD
A
Retailer 2
-
$23,270 AUD
$16,346 USD
View
A
Retailer 3
-
$23,376 AUD
$16,420 USD
View
A
Retailer 4
-
$24,025 AUD
$16,876 USD
View
Final sale: no returns
A
Retailer 5
-
$24,235 AUD
$17,024 USD
View
A
Retailer 6
-
$24,278 AUD
$17,054 USD
View
A
Retailer 7
-
$24,346 AUD
₹1,628,702 INR
View
A
Retailer 8
-
$24,785 AUD
$17,410 USD
View
A
Retailer 9
-
$25,893 AUD
£14,321 GBP
View
B+
Retailer 10
-
$27,436 AUD
$19,272 USD
View
B+
Retailer 11
-
$30,419 AUD
€20,350 EUR
View
B+
Retailer 12
-
$30,927 AUD
£17,106 GBP
View
B+
Retailer 13
-
$31,458 AUD
$22,098 USD
View
B
Retailer 14
-
$35,516 AUD
$24,948 USD
View
Most Expensive
B
MOH London
A38ADCC24 · Oct 29
$39,363 AUD
£21,772 GBP
View
14 more retailers have this diamond
Prices start from $21,794 AUDSave up to $17,570 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
$21,794 AUD