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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 HK$5,602 HKD
$714 USD
As of October 30, 2026
Save HK$5,638 HKD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$19,677 HKD 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: HK$19,677 HKD|Low: HK$4,856 HKD|High: HK$19,677 HKD|Avg: HK$9,108 HKD|+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 4HK$5,602 HKD
Retailer 6HK$5,743 HKD
Retailer 10HK$5,790 HKD
Retailer 11HK$6,277 HKD
Retailer 12HK$6,363 HKD
Retailer 3HK$6,520 HKD
Retailer 14HK$7,242 HKD
Retailer 13HK$7,336 HKD
Retailer 7HK$7,343 HKD
Retailer 8HK$7,548 HKD
Retailer 2HK$8,881 HKD
Retailer 9HK$11,239 HKD
Retailer 5HK$15,046 HKD
NZ JewellersHK$19,677 HKD

42 data points across 14 retailers

17 retailersHK$5,602 HKD to HK$11,239 HKD

Retailer 1
-
HK$4,336 HKD
A$850 AUD
Price last confirmed 173 days ago
B+
Retailer 2
-
HK$5,602 HKD
$714 USD
View
Retailer 3
-
HK$5,743 HKD
$732 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
HK$5,790 HKD
$738 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$6,277 HKD
$800 USD
View
B+
Retailer 6
-
HK$6,363 HKD
$811 USD
View
B+
Retailer 7
-
HK$6,520 HKD
$831 USD
View
Retailer 8
-
HK$6,781 HKD
$864 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
HK$7,242 HKD
$923 USD
View
B+
Retailer 10
-
HK$7,336 HKD
$935 USD
View
B+
Retailer 11
-
HK$7,343 HKD
£737 GBP
View
B
Retailer 12
-
HK$7,548 HKD
£758 GBP
View
B
Retailer 13
-
HK$8,881 HKD
€1,078 EUR
View
B
Retailer 14
-
HK$11,239 HKD
£1,128 GBP
View
Retailer 15
-
HK$15,046 HKD
£1,510 GBP
View
Price last confirmed 12 days ago
Retailer 16
-
HK$18,006 HKD
$2,295 USD
View
Price under review
Most Expensive
NZ Jewellers
4d6437fd-a68e-4bed-ae1e-170769d86bdc · Oct 30
HK$19,677 HKD
$2,508 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$5,602 HKDSave up to HK$5,638 HKD

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
HK$5,602 HKD