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Oval|Natural|GIA

0.51ct J I1 Oval Natural Diamond

VG • J/I1 • GIA 6371043187

Certificate GIA 6371043187

Diamond specifications and retailer prices

From $590 NZD
HK$2,600 HKD
As of November 1, 2026
Save $531 NZD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,638 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J colour (near-colourless) and I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6371043187. Listed at 8 retailers as of November 1, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6371043187
Dimensions6.64 × 4.31 × 2.73 mm
L/W Ratio1.54
Top View
6.64 mm4.31 mm0.51 ctJ / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6371043187
Side View
Table 58.0%CrownGirdle: NULPavilionCulet: NoneDepth 63.3%

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: Nov 1
Current: $1,122 NZD|Low: $590 NZD|High: $1,122 NZD|Avg: $868 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$590 NZD
Retailer 4$688 NZD
Retailer 6$742 NZD
Retailer 2$750 NZD
Retailer 5$926 NZD
Retailer 3$960 NZD
Retailer 8$1,017 NZD
Retailer 9$1,034 NZD
Retailer 1$1,122 NZD

17 data points across 9 retailers

8 retailers$590 NZD to $1,122 NZD

B+
Cheapest Retailer
-
$590 NZD
HK$2,600 HKD
B+
Retailer 2
-
$688 NZD
$388 USD
View
B+
Retailer 3
-
$742 NZD
$418 USD
View
B+
Retailer 4
-
$768 NZD
$433 USD
View
B
Retailer 5
-
$926 NZD
$522 USD
View
B
Retailer 6
-
$960 NZD
$541 USD
View
B
Retailer 7
-
$1,122 NZD
€602 EUR
View
Most Expensive
NZ Jewellers
ec87aaea-d811-4a07-8b16-73bcf4321677 · Oct 30
$2,638 NZD
$1,487 USD
View
Price under review
7 more retailers have this diamond
Prices start from $590 NZDSave up to $531 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.

B+
0.51ct Oval
$590 NZD