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Oval|Natural|GIA

0.50ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6551718567

Certificate GIA 6551718567

Diamond specifications and retailer prices

From $738 NZD
As of November 6, 2026
Save $1,566 NZD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,133 NZD 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $738 NZD|Low: $738 NZD|High: $2,334 NZD|Avg: $1,316 NZD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$738 NZD
Retailer 7$922 NZD
Retailer 3$1,052 NZD
Retailer 5$1,216 NZD
Retailer 2$1,219 NZD
Retailer 4$1,474 NZD
Retailer 6$2,304 NZD

30 data points across 7 retailers

13 retailers$738 NZD to $2,304 NZD

A
Cheapest Retailer
-
$738 NZD
A
Retailer 2
-
$853 NZD
View
A
Retailer 3
-
$922 NZD
View
Final sale: no returns
Retailer 4
-
$999 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$1,052 NZD
View
Retailer 6
-
$1,075 NZD
View
Price last confirmed 12 days ago
Retailer 7
-
$1,153 NZD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$1,216 NZD
View
A
Retailer 9
-
$1,219 NZD
View
A
Retailer 10
-
$1,241 NZD
View
B+
Retailer 11
-
$1,474 NZD
View
B
Retailer 12
-
$2,304 NZD
View
Most Expensive
NZ Jewellers
dff5174f-b7d5-4a14-9110-eabd59f24bfd · Oct 27
$3,133 NZD
$1,737 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $738 NZDSave up to $1,566 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
$738 NZD