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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6565801280

Certificate GIA 6565801280

Diamond specifications and retailer prices

From $577 NZD
As of November 6, 2026
Save $2,396 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,973 NZD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565801280. Listed at 16 retailers as of November 5, 2026, with prices from $577 to $2,973, a $2,396 spread on the same certified stone. NZ Jewellers lists it at $2,973. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565801280
Dimensions6.32 × 4.47 × 2.85 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot
Top View
6.32 mm4.47 mm0.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565801280
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.7%

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: $2,973 NZD|Low: $577 NZD|High: $2,973 NZD|Avg: $1,136 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 6, 2026
Retailer 10$577 NZD
Retailer 2$709 NZD
Retailer 7$776 NZD
Retailer 9$797 NZD
Retailer 8$835 NZD
Retailer 15$886 NZD
Retailer 11$936 NZD
Retailer 4$938 NZD
Retailer 14$942 NZD
Retailer 16$976 NZD
Retailer 12$1,003 NZD
Retailer 13$1,095 NZD
Retailer 5$1,154 NZD
Retailer 3$1,201 NZD
Retailer 6$1,788 NZD
NZ Jewellers$2,973 NZD

5 data points across 16 retailers

16 retailers$577 NZD to $2,973 NZD

A
Cheapest Retailer
-
$577 NZD
A
Retailer 2
-
$709 NZD
View
Final sale: no returns
A
Retailer 3
-
$776 NZD
View
A
Retailer 4
-
$797 NZD
View
A
Retailer 5
-
$835 NZD
View
A
Retailer 6
-
$886 NZD
View
A
Retailer 7
-
$936 NZD
View
B+
Retailer 8
-
$938 NZD
View
A
Retailer 9
-
$942 NZD
View
B+
Retailer 10
-
$976 NZD
View
B+
Retailer 11
-
$1,003 NZD
View
B+
Retailer 12
-
$1,095 NZD
View
B+
Retailer 13
-
$1,154 NZD
View
B
Retailer 14
-
$1,201 NZD
View
B
Retailer 15
-
$1,788 NZD
View
Most Expensive
B
NZ Jewellers
9a4e8a39-a3b4-4111-8165-27ef4de888cb · Nov 5
$2,973 NZD
$1,648 USD
View
15 more retailers have this diamond
Prices start from $577 NZDSave up to $2,396 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
0.51ct Oval
$577 NZD