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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 $714 USD
As of October 30, 2026
Save $719 USD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,508 USD 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
Color
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: $2,508 USD|Low: $619 USD|High: $2,508 USD|Avg: $1,165 USD|+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 30, 2026
Retailer 4$714 USD
Retailer 6$732 USD
Retailer 10$738 USD
Retailer 11$800 USD
Retailer 12$811 USD
Retailer 3$831 USD
Retailer 14$923 USD
Retailer 13$935 USD
Retailer 2$936 USD
Retailer 7$962 USD
Retailer 8$1,131 USD
Retailer 9$1,433 USD
Retailer 5$1,918 USD
NZ Jewellers$2,508 USD

42 data points across 14 retailers

17 retailers$714 USD to $1,433 USD

Retailer 1
-
$553 USD
A$850 AUD
Price last confirmed 172 days ago
B+
Retailer 2
-
$714 USD
View
Retailer 3
-
$732 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$738 USD
View
Final sale: no returns
B+
Retailer 5
-
$800 USD
View
B+
Retailer 6
-
$811 USD
View
B+
Retailer 7
-
$831 USD
View
Retailer 8
-
$864 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$923 USD
View
B+
Retailer 10
-
$935 USD
View
B+
Retailer 11
-
$936 USD
£737 GBP
View
B
Retailer 12
-
$962 USD
£758 GBP
View
B
Retailer 13
-
$1,131 USD
€1,077 EUR
View
B
Retailer 14
-
$1,433 USD
£1,128 GBP
View
Retailer 15
-
$1,918 USD
£1,510 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
$2,295 USD
View
Price under review
Most Expensive
NZ Jewellers
4d6437fd-a68e-4bed-ae1e-170769d86bdc · Oct 30
$2,508 USD
View
Price under review
16 more retailers have this diamond
Prices start from $714 USDSave up to $719 USD

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
$714 USD