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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

ID • J/SI1 • GIA 2517859105

Certificate GIA 2517859105

Diamond specifications and retailer prices

From $5,763 NZD
As of November 6, 2026
Save $6,723 NZD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,487 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2517859105. Listed at 21 retailers as of November 5, 2026, with prices from $5,763 to $12,487, a $6,723 spread on the same certified stone. NZ Jewellers lists it at $12,487. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2517859105
Dimensions8.50 × 5.91 × 3.73 mm
L/W Ratio1.44
Top View
8.50 mm5.91 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2517859105
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,065 NZD|Low: $5,993 NZD|High: $12,129 NZD|Avg: $8,093 NZD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$5,993 NZD
Retailer 7$6,241 NZD
Retailer 2$6,624 NZD
Retailer 6$7,677 NZD
Retailer 1$8,065 NZD
Retailer 3$8,749 NZD
Retailer 4$11,985 NZD

44 data points across 7 retailers

21 retailers$5,763 NZD to $12,487 NZD

B
Cheapest Retailer
-
$5,763 NZD
B
Retailer 2
-
$5,993 NZD
View
Final sale: no returns
B
Retailer 3
-
$6,099 NZD
View
B
Retailer 4
-
$6,103 NZD
View
B
Retailer 5
-
$6,241 NZD
View
B
Retailer 6
-
$6,494 NZD
View
Retailer 7
-
$6,494 NZD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$6,499 NZD
View
B
Retailer 9
-
$6,624 NZD
View
B
Retailer 10
-
$6,743 NZD
View
B
Retailer 11
-
$7,071 NZD
View
B
Retailer 12
-
$7,071 NZD
View
B
Retailer 13
-
$7,306 NZD
View
B
Retailer 14
-
$7,364 NZD
View
B
Retailer 15
-
$7,492 NZD
View
B
Retailer 16
-
$7,672 NZD
View
Retailer 17
-
$7,677 NZD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$8,065 NZD
View
B
Retailer 19
-
$8,749 NZD
View
B
Retailer 20
-
$11,985 NZD
View
Most Expensive
B
NZ Jewellers
94f23248-e435-4f68-8375-fba0ae641fd8 · Nov 5
$12,487 NZD
$6,922 USD
View
20 more retailers have this diamond
Prices start from $5,763 NZDSave up to $6,723 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
1.20ct Oval
$5,763 NZD