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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 $19,794 NZD
£8,784 GBP
As of November 1, 2026
Save $8,821 NZD (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $32,452 NZD 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 8 retailers as of November 1, 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: Nov 1
Current: $28,615 NZD|Low: $19,674 NZD|High: $30,774 NZD|Avg: $23,030 NZD|-6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$19,794 NZD
Retailer 4$19,943 NZD
Retailer 8$20,972 NZD
Retailer 6$21,279 NZD
Retailer 9$21,492 NZD
Retailer 7$22,924 NZD
Retailer 5$24,068 NZD
Retailer 3$25,334 NZD
Retailer 1$28,615 NZD

19 data points across 9 retailers

8 retailers$19,794 NZD to $28,615 NZD

A
Cheapest Retailer
-
$19,794 NZD
£8,784 GBP
A
Retailer 2
-
$19,943 NZD
$11,240 USD
View
Retailer 3
-
$21,279 NZD
A$18,450 AUD
View
Price last confirmed 31 days ago
Retailer 4
-
$23,282 NZD
$13,122 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$24,178 NZD
$13,627 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
$25,334 NZD
ZAR 230,664 ZAR
View
B
Retailer 7
-
$28,615 NZD
£12,699 GBP
View
Most Expensive
NZ Jewellers
6e39fd9f-7de7-4dcd-ab02-890231578f2c · Sep 30
$32,452 NZD
$18,290 USD
View
Price last confirmed 32 days ago
7 more retailers have this diamond
Prices start from $19,794 NZDSave up to $8,821 NZD

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
$19,794 NZD