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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 $3,716 AUD
As of November 6, 2026
Save $4,727 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,443 AUD 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 $3,716 to $8,443, a $4,727 spread on the same certified stone. NZ Jewellers lists it at $8,443. 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: $3,716 AUD|Low: $3,716 AUD|High: $8,147 AUD|Avg: $4,968 AUD|-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$3,716 AUD
Retailer 7$3,726 AUD
Retailer 5$4,257 AUD
Retailer 9$4,472 AUD
Retailer 8$4,624 AUD
Retailer 2$4,765 AUD
Retailer 4$5,014 AUD
Retailer 3$5,643 AUD
Retailer 6$8,082 AUD

28 data points across 9 retailers

20 retailers$3,716 AUD to $8,443 AUD

A
Cheapest Retailer
-
$3,716 AUD
A
Retailer 2
-
$3,726 AUD
View
B+
Retailer 3
-
$4,138 AUD
View
B+
Retailer 4
-
$4,257 AUD
View
B+
Retailer 5
-
$4,302 AUD
View
B+
Retailer 6
-
$4,472 AUD
View
Final sale: no returns
B+
Retailer 7
-
$4,624 AUD
View
B+
Retailer 8
-
$4,765 AUD
View
B+
Retailer 9
-
$4,846 AUD
View
Retailer 10
-
$4,846 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$5,014 AUD
View
B
Retailer 12
-
$5,033 AUD
View
B
Retailer 13
-
$5,055 AUD
View
B
Retailer 14
-
$5,181 AUD
View
B
Retailer 15
-
$5,186 AUD
View
B
Retailer 16
-
$5,592 AUD
View
B+
Retailer 17
-
$5,643 AUD
View
B
Retailer 18
-
$7,207 AUD
View
B
Retailer 19
-
$8,082 AUD
View
Most Expensive
B
NZ Jewellers
a1294cdc-a426-4a6d-b4d7-04d2520b6c20 · Nov 5
$8,443 AUD
$5,801 USD
View
19 more retailers have this diamond
Prices start from $3,716 AUDSave up to $4,727 AUD

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
$3,716 AUD