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Oval|Natural|GIA

2.50ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 2245044039

Certificate GIA 2245044039

Diamond specifications and retailer prices

From $15,882 AUD
£8,784 GBP
As of October 31, 2026
Save $7,201 AUD (31%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $26,038 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 2.5ct natural oval diamond

This 2.5ct natural oval sits in the two to three carat band, graded J 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 2245044039. Listed at 7 retailers as of October 29, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245044039
Dimensions10.60 × 7.58 × 4.71 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
10.60 mm7.58 mm2.50 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2245044039
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.1%

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 31
Current: $15,882 AUD|Low: $15,786 AUD|High: $24,691 AUD|Avg: $18,502 AUD|-6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 1$15,882 AUD
Retailer 3$16,001 AUD
Retailer 8$16,827 AUD
Retailer 5$17,073 AUD
Retailer 9$17,244 AUD
Retailer 7$18,393 AUD
Retailer 4$19,311 AUD
Retailer 6$21,199 AUD
Retailer 2$23,082 AUD

18 data points across 9 retailers

7 retailers$15,882 AUD to $23,082 AUD

A
Cheapest Retailer
-
$15,882 AUD
£8,784 GBP
A
Retailer 2
-
$16,001 AUD
$11,240 USD
View
Retailer 3
-
$17,073 AUD
View
Price last confirmed 30 days ago
Retailer 4
-
$18,680 AUD
$13,122 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$19,399 AUD
$13,627 USD
View
Price last confirmed 33 days ago
B
Retailer 6
-
$23,082 AUD
£12,767 GBP
View
Most Expensive
NZ Jewellers
6e39fd9f-7de7-4dcd-ab02-890231578f2c · Sep 30
$26,038 AUD
$18,290 USD
View
Price last confirmed 31 days ago
6 more retailers have this diamond
Prices start from $15,882 AUDSave up to $7,201 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 Oval
$15,882 AUD