CaratHunter
Plans
Oval|Natural|GIA

0.50ct D I1 Oval Natural Diamond

ID • D/I1 • GIA 1518653857

Certificate GIA 1518653857

Diamond specifications and retailer prices

From $1,198 NZD
$675 USD
As of October 31, 2026
Save $507 NZD (30%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,758 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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518653857. Listed at 6 retailers as of October 31, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.50
Carat
D
Colour
I1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1518653857
Dimensions6.65 × 4.39 × 2.67 mm
L/W Ratio1.51
Key to symbols
Feather, Crystal
Top View
6.65 mm4.39 mm0.50 ctD / I1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518653857
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.8%

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: Oct 31
Current: $3,758 NZD|Low: $1,198 NZD|High: $3,758 NZD|Avg: $1,728 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$1,198 NZD
Retailer 7$1,198 NZD
Retailer 5$1,244 NZD
Retailer 3$1,382 NZD
Retailer 6$1,425 NZD
Retailer 10$1,482 NZD
Retailer 2$1,705 NZD
Retailer 8$1,803 NZD
Retailer 9$1,936 NZD
NZ Jewellers$3,758 NZD

31 data points across 10 retailers

6 retailers$1,198 NZD to $1,705 NZD

A
Cheapest Retailer
-
$1,198 NZD
$675 USD
A
Retailer 2
-
$1,244 NZD
$701 USD
View
B+
Retailer 3
-
$1,382 NZD
$779 USD
View
B+
Retailer 4
-
$1,425 NZD
$803 USD
View
B+
Retailer 5
-
$1,705 NZD
€915 EUR
View
Most Expensive
NZ Jewellers
b50c4d9c-a29f-4aed-af33-983fc0bf53b8 · Oct 30
$3,758 NZD
$2,118 USD
View
Price under review
5 more retailers have this diamond
Prices start from $1,198 NZDSave up to $507 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
$1,198 NZD