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Oval|Natural|GIA

1.20ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 2556450165

Certificate GIA 2556450165

Diamond specifications and retailer prices

From $4,605 NZD
As of November 6, 2026
Save $5,859 NZD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,464 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 I 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 2556450165. Listed at 20 retailers as of November 5, 2026, with prices from $4,605 to $10,464, a $5,859 spread on the same certified stone. NZ Jewellers lists it at $10,464. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle42.07°
Pavilion angle35.73°
OriginNatural
Grading LabGIA
CertificateGIA 2556450165
Dimensions8.07 × 5.76 × 3.67 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Pinpoint, Cloud
Top View
8.07 mm5.76 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556450165
Side View
Table 63.0%Crown 42.07°Girdle: THK-VTKPavilion 35.73°Culet: 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: $4,605 NZD|Low: $4,605 NZD|High: $10,098 NZD|Avg: $6,158 NZD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$4,605 NZD
Retailer 7$4,618 NZD
Retailer 5$5,276 NZD
Retailer 9$5,543 NZD
Retailer 8$5,731 NZD
Retailer 2$5,906 NZD
Retailer 4$6,214 NZD
Retailer 3$6,994 NZD
Retailer 6$10,017 NZD

28 data points across 9 retailers

20 retailers$4,605 NZD to $10,464 NZD

A
Cheapest Retailer
-
$4,605 NZD
A
Retailer 2
-
$4,618 NZD
View
B+
Retailer 3
-
$5,128 NZD
View
B+
Retailer 4
-
$5,276 NZD
View
B+
Retailer 5
-
$5,332 NZD
View
B+
Retailer 6
-
$5,543 NZD
View
Final sale: no returns
B+
Retailer 7
-
$5,731 NZD
View
B+
Retailer 8
-
$5,906 NZD
View
B+
Retailer 9
-
$6,007 NZD
View
Retailer 10
-
$6,007 NZD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$6,214 NZD
View
B
Retailer 12
-
$6,238 NZD
View
B
Retailer 13
-
$6,265 NZD
View
B
Retailer 14
-
$6,422 NZD
View
B
Retailer 15
-
$6,427 NZD
View
B
Retailer 16
-
$6,931 NZD
View
B+
Retailer 17
-
$6,994 NZD
View
B
Retailer 18
-
$8,933 NZD
View
B
Retailer 19
-
$10,017 NZD
View
Most Expensive
B
NZ Jewellers
a1294cdc-a426-4a6d-b4d7-04d2520b6c20 · Nov 5
$10,464 NZD
$5,801 USD
View
19 more retailers have this diamond
Prices start from $4,605 NZDSave up to $5,859 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
$4,605 NZD