CaratHunter
Plans
Cushion|Natural|GIA

2.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1242047745

Certificate GIA 1242047745

Diamond specifications and retailer prices

From $13,120 AUD
HK$72,000 HKD
As of November 1, 2026
Save $10,245 AUD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $23,364 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 2.5ct natural cushion diamond

This 2.5ct natural cushion sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242047745. Listed at 6 retailers as of November 1, 2026, with prices from $13,120 to $23,364, a $10,245 spread on the same certified stone. MOH London lists it at $23,364. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle36.65°
OriginNatural
Grading LabGIA
CertificateGIA 1242047745
Dimensions7.84 × 7.47 × 5.13 mm
L/W Ratio1.05
Key to symbols
Crystal, Cloud, Needle
Top View
7.84 mm7.47 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1242047745
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 36.65°Culet: NoneDepth 68.7%

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: Nov 1
Current: $23,364 AUD|Low: $13,120 AUD|High: $26,342 AUD|Avg: $17,820 AUD|-11.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 3$13,120 AUD
Retailer 4$14,408 AUD
Retailer 5$15,564 AUD
Retailer 6$15,611 AUD
Retailer 2$19,186 AUD
MOH London$23,364 AUD

39 data points across 6 retailers

6 retailers$13,120 AUD to $23,364 AUD

A
Cheapest Retailer
-
$13,120 AUD
HK$72,000 HKD
A
Retailer 2
-
$14,408 AUD
€9,639 EUR
View
A
Retailer 3
-
$15,564 AUD
$10,933 USD
View
Retailer 4
-
$15,611 AUD
SGD 14,819 SGD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$19,186 AUD
€12,835 EUR
View
Most Expensive
A
MOH London
6AF3D21D8 · Nov 1
$23,364 AUD
£12,923 GBP
View
5 more retailers have this diamond
Prices start from $13,120 AUDSave up to $10,245 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 Cushion
$13,120 AUD