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Oval|Natural|GIA

0.50ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 1557137309

Certificate GIA 1557137309

Diamond specifications and retailer prices

From $1,267 NZD
$714 USD
As of October 30, 2026
Save $1,275 NZD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,450 NZD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557137309. Listed at 17 retailers as of October 26, 2026, with a 101% 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557137309
Dimensions6.53 × 4.30 × 2.68 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.53 mm4.30 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557137309
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,450 NZD|Low: $1,098 NZD|High: $4,450 NZD|Avg: $2,060 NZD|+9.3%
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
October 31, 2026
Retailer 4$1,267 NZD
Retailer 6$1,299 NZD
Retailer 10$1,309 NZD
Retailer 11$1,419 NZD
Retailer 12$1,439 NZD
Retailer 3$1,474 NZD
Retailer 14$1,638 NZD
Retailer 13$1,659 NZD
Retailer 7$1,661 NZD
Retailer 8$1,707 NZD
Retailer 2$2,008 NZD
Retailer 9$2,542 NZD
Retailer 5$3,403 NZD
NZ Jewellers$4,450 NZD

42 data points across 14 retailers

17 retailers$1,267 NZD to $2,542 NZD

Retailer 1
-
$980 NZD
A$850 AUD
Price last confirmed 173 days ago
B+
Retailer 2
-
$1,267 NZD
$714 USD
View
Retailer 3
-
$1,299 NZD
$732 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$1,309 NZD
$738 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,419 NZD
$800 USD
View
B+
Retailer 6
-
$1,439 NZD
$811 USD
View
B+
Retailer 7
-
$1,474 NZD
$831 USD
View
Retailer 8
-
$1,533 NZD
$864 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
$1,638 NZD
$923 USD
View
B+
Retailer 10
-
$1,659 NZD
$935 USD
View
B+
Retailer 11
-
$1,661 NZD
£737 GBP
View
B
Retailer 12
-
$1,707 NZD
£758 GBP
View
B
Retailer 13
-
$2,008 NZD
€1,078 EUR
View
B
Retailer 14
-
$2,542 NZD
£1,128 GBP
View
Retailer 15
-
$3,403 NZD
£1,510 GBP
View
Price last confirmed 12 days ago
Retailer 16
-
$4,072 NZD
$2,295 USD
View
Price under review
Most Expensive
NZ Jewellers
4d6437fd-a68e-4bed-ae1e-170769d86bdc · Oct 30
$4,450 NZD
$2,508 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,267 NZDSave up to $1,275 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.

B+
0.50ct Oval
$1,267 NZD