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Oval|Natural|GIA

0.50ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2558961283

Certificate GIA 2558961283

Diamond specifications and retailer prices

From $635 NZD
As of November 6, 2026
Save $1,379 NZD (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,014 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 0.5ct natural oval diamond

This 0.5ct natural oval sits in the half to three-quarter 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 2558961283. Listed at 20 retailers as of November 4, 2026, with prices from $635 to $2,014, a $1,379 spread on the same certified stone. MOH London lists it at $2,014. 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2558961283
Dimensions6.28 × 4.38 × 2.79 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.28 mm4.38 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558961283
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.7%

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 6
Current: $2,014 NZD|Low: $635 NZD|High: $2,082 NZD|Avg: $1,116 NZD|-3.3%
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
November 6, 2026
Retailer 2$635 NZD
Retailer 12$738 NZD
Retailer 6$805 NZD
Retailer 14$891 NZD
Retailer 13$940 NZD
Retailer 3$1,008 NZD
Retailer 7$1,066 NZD
Retailer 8$1,073 NZD
Retailer 11$1,109 NZD
Retailer 5$1,230 NZD
Retailer 4$1,245 NZD
Retailer 10$1,311 NZD
Retailer 9$1,353 NZD
MOH London$2,014 NZD

25 data points across 14 retailers

20 retailers$635 NZD to $2,014 NZD

A
Cheapest Retailer
-
$635 NZD
A
Retailer 2
-
$738 NZD
View
A
Retailer 3
-
$805 NZD
View
Final sale: no returns
A
Retailer 4
-
$873 NZD
View
A
Retailer 5
-
$891 NZD
View
Retailer 6
-
$940 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$940 NZD
View
A
Retailer 8
-
$940 NZD
View
Retailer 9
-
$1,008 NZD
View
Price last confirmed 16 days ago
A
Retailer 10
-
$1,008 NZD
View
Retailer 11
-
$1,030 NZD
View
Price last confirmed 24 days ago
A
Retailer 12
-
$1,066 NZD
View
B+
Retailer 13
-
$1,073 NZD
View
B+
Retailer 14
-
$1,109 NZD
View
B+
Retailer 15
-
$1,230 NZD
View
B+
Retailer 16
-
$1,245 NZD
View
B+
Retailer 17
-
$1,311 NZD
View
B+
Retailer 18
-
$1,353 NZD
View
Retailer 19
-
$1,429 NZD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
74A3430AE · Nov 4
$2,014 NZD
£879 GBP
View
19 more retailers have this diamond
Prices start from $635 NZDSave up to $1,379 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
0.50ct Oval
$635 NZD