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Oval|Natural|GIA

0.50ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1545851428

Certificate GIA 1545851428

Diamond specifications and retailer prices

From $940 NZD
As of November 6, 2026
Save $1,957 NZD (68%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,934 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural oval diamond

This 0.5ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545851428. Listed at 23 retailers as of November 2, 2026, with a 208% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.11°
Pavilion angle33.32°
OriginNatural
Grading LabGIA
CertificateGIA 1545851428
Dimensions6.81 × 4.40 × 2.54 mm
L/W Ratio1.55
Key to symbols
Feather
Top View
6.81 mm4.40 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545851428
Side View
Table 59.0%Crown 37.11°Girdle: MED-THKPavilion 33.32°Culet: NoneDepth 57.8%

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: $3,934 NZD|Low: $940 NZD|High: $3,934 NZD|Avg: $1,612 NZD
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 2$940 NZD
Retailer 11$1,084 NZD
Retailer 10$1,158 NZD
Retailer 5$1,187 NZD
Retailer 17$1,232 NZD
Retailer 3$1,256 NZD
Retailer 12$1,256 NZD
Retailer 4$1,302 NZD
Retailer 6$1,306 NZD
Retailer 13$1,328 NZD
Retailer 7$1,449 NZD
Retailer 22$1,492 NZD
Retailer 16$1,524 NZD
Retailer 21$1,553 NZD
Retailer 8$1,578 NZD
Retailer 14$1,721 NZD
Retailer 9$1,737 NZD
Retailer 19$1,782 NZD
Retailer 15$1,786 NZD
Retailer 18$1,936 NZD
Retailer 20$2,897 NZD
NZ Jewellers$3,934 NZD

27 data points across 22 retailers

23 retailers$940 NZD to $2,897 NZD

A
Cheapest Retailer
-
$940 NZD
A
Retailer 2
-
$1,084 NZD
View
A
Retailer 3
-
$1,158 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,187 NZD
View
A
Retailer 5
-
$1,232 NZD
View
B+
Retailer 6
-
$1,256 NZD
View
Retailer 7
-
$1,256 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$1,302 NZD
View
B+
Retailer 9
-
$1,306 NZD
View
B+
Retailer 10
-
$1,328 NZD
View
B+
Retailer 11
-
$1,449 NZD
View
B+
Retailer 12
-
$1,492 NZD
View
B+
Retailer 13
-
$1,524 NZD
View
B+
Retailer 14
-
$1,553 NZD
View
B
Retailer 15
-
$1,578 NZD
View
B+
Retailer 16
-
$1,721 NZD
View
B+
Retailer 17
-
$1,737 NZD
View
B+
Retailer 18
-
$1,782 NZD
View
B+
Retailer 19
-
$1,786 NZD
View
B+
Retailer 20
-
$1,936 NZD
View
Retailer 21
-
$1,959 NZD
View
Price last confirmed 34 days ago
B
Retailer 22
-
$2,897 NZD
View
Most Expensive
NZ Jewellers
d8920225-8815-402e-9035-e44a7c586bdc · Nov 5
$3,934 NZD
$2,181 USD
View
Price under review
22 more retailers have this diamond
Prices start from $940 NZDSave up to $1,957 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
$940 NZD