Oval|Natural|GIA

0.50ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6551718567

Certificate GIA 6551718567

Diamond specifications and retailer prices

From $409 USD
As of November 6, 2026
Save $868 USD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,737 USD at NZ Jewellers · As of October 27, 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 E 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 6551718567. Listed at 13 retailers as of November 4, 2026, with a 212% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551718567
Dimensions6.70 × 4.24 × 2.63 mm
L/W Ratio1.58
Culet sizeNone
Key to symbols
Crystal
Top View
6.70 mm4.24 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551718567
Side View
Table 55.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $409 USD|Low: $409 USD|High: $1,294 USD|Avg: $730 USD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$409 USD
Retailer 7$511 USD
Retailer 3$583 USD
Retailer 5$674 USD
Retailer 2$676 USD
Retailer 4$817 USD
Retailer 6$1,277 USD

30 data points across 7 retailers

13 retailers$409 USD to $1,277 USD

A
Cheapest Retailer
-
$409 USD
A
Retailer 2
-
$473 USD
View
A
Retailer 3
-
$511 USD
View
Final sale: no returns
Retailer 4
-
$554 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$583 USD
View
Retailer 6
-
$596 USD
View
Price last confirmed 12 days ago
Retailer 7
-
$639 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$674 USD
View
A
Retailer 9
-
$676 USD
View
A
Retailer 10
-
$688 USD
View
B+
Retailer 11
-
$817 USD
View
B
Retailer 12
-
$1,277 USD
View
Most Expensive
NZ Jewellers
dff5174f-b7d5-4a14-9110-eabd59f24bfd · Oct 27
$1,737 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $409 USDSave up to $868 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.

A
0.50ct Oval
$409 USD