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Oval|Natural|GIA

0.51ct J SI2 Oval Natural Diamond

ID • J/SI2 • GIA 3445802867

Certificate GIA 3445802867

Diamond specifications and retailer prices

From $926 NZD
$522 USD
As of November 2, 2026
Save $1,393 NZD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,148 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3445802867. Listed at 13 retailers as of November 1, 2026, with a 150% 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

0.51
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3445802867
Dimensions6.23 × 4.47 × 2.85 mm
L/W Ratio1.39
Top View
6.23 mm4.47 mm0.51 ctJ / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3445802867
Side View
Table 60.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 63.7%

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 2
Current: $3,148 NZD|Low: $848 NZD|High: $3,148 NZD|Avg: $1,349 NZD
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 16$926 NZD
Retailer 6$1,002 NZD
Retailer 14$1,004 NZD
Retailer 12$1,081 NZD
Retailer 13$1,081 NZD
Retailer 5$1,113 NZD
Retailer 7$1,119 NZD
Retailer 15$1,159 NZD
Retailer 9$1,199 NZD
Retailer 2$1,220 NZD
Retailer 4$1,224 NZD
Retailer 3$1,237 NZD
Retailer 11$1,490 NZD
Retailer 8$1,522 NZD
Retailer 10$2,319 NZD
NZ Jewellers$3,148 NZD

26 data points across 16 retailers

13 retailers$926 NZD to $2,319 NZD

B+
Cheapest Retailer
-
$926 NZD
$522 USD
Final sale: no returns
B+
Retailer 2
-
$1,004 NZD
$566 USD
View
B+
Retailer 3
-
$1,081 NZD
$609 USD
View
B+
Retailer 4
-
$1,081 NZD
$609 USD
View
B+
Retailer 5
-
$1,113 NZD
HK$4,900 HKD
View
B
Retailer 6
-
$1,159 NZD
$653 USD
View
B
Retailer 7
-
$1,199 NZD
£532 GBP
View
B
Retailer 8
-
$1,220 NZD
£541 GBP
View
B
Retailer 9
-
$1,224 NZD
$690 USD
View
B
Retailer 10
-
$1,237 NZD
$697 USD
View
B
Retailer 11
-
$1,490 NZD
€800 EUR
View
B
Retailer 12
-
$2,319 NZD
£1,029 GBP
View
Most Expensive
NZ Jewellers
1ce62622-6afd-47a9-a0a1-a32fa7210877 · Oct 30
$3,148 NZD
$1,774 USD
View
Price under review
12 more retailers have this diamond
Prices start from $926 NZDSave up to $1,393 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
$926 NZD