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Oval|Natural|GIA

1.20ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 5426502642

Certificate GIA 5426502642

Diamond specifications and retailer prices

From $2,978 NZD
As of November 6, 2026
Save $5,377 NZD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,356 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-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 5426502642. Listed at 17 retailers as of November 5, 2026, with prices from $2,978 to $8,356, a $5,377 spread on the same certified stone. NZ Jewellers lists it at $8,356. 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5426502642
Dimensions8.25 × 5.58 × 3.92 mm
L/W Ratio1.48
Top View
8.25 mm5.58 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5426502642
Side View
Table 60.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 70.3%

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: $8,356 NZD|Low: $2,931 NZD|High: $8,397 NZD|Avg: $4,520 NZD|-0.5%
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
November 6, 2026
Retailer 12$2,978 NZD
Retailer 6$3,536 NZD
Retailer 7$3,628 NZD
Retailer 3$3,689 NZD
Retailer 2$3,983 NZD
Retailer 13$3,997 NZD
Retailer 15$3,997 NZD
Retailer 8$4,127 NZD
Retailer 5$4,181 NZD
Retailer 14$4,246 NZD
Retailer 10$4,342 NZD
Retailer 4$4,613 NZD
Retailer 9$4,963 NZD
Retailer 11$7,003 NZD
NZ Jewellers$8,356 NZD

30 data points across 15 retailers

17 retailers$2,978 NZD to $8,356 NZD

A
Cheapest Retailer
-
$2,978 NZD
B+
Retailer 2
-
$3,536 NZD
View
B+
Retailer 3
-
$3,628 NZD
View
B+
Retailer 4
-
$3,689 NZD
View
Final sale: no returns
Retailer 5
-
$3,943 NZD
View
Price last confirmed 117 days ago
B+
Retailer 6
-
$3,972 NZD
View
B+
Retailer 7
-
$3,983 NZD
View
B+
Retailer 8
-
$3,997 NZD
View
Retailer 9
-
$3,997 NZD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,127 NZD
View
B+
Retailer 11
-
$4,181 NZD
View
B+
Retailer 12
-
$4,246 NZD
View
B+
Retailer 13
-
$4,342 NZD
View
B
Retailer 14
-
$4,613 NZD
View
B+
Retailer 15
-
$4,963 NZD
View
B
Retailer 16
-
$7,003 NZD
View
Most Expensive
B
NZ Jewellers
6b445b4d-fc17-40f2-a953-984a79f3d77b · Nov 5
$8,356 NZD
$4,632 USD
View
16 more retailers have this diamond
Prices start from $2,978 NZDSave up to $5,377 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
1.20ct Oval
$2,978 NZD