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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

ID • I/SI1 • GIA 6541152972

Certificate GIA 6541152972

Diamond specifications and retailer prices

From $3,612 AUD
As of November 6, 2026
Save $4,554 AUD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,166 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541152972. Listed at 25 retailers as of November 5, 2026, with prices from $3,612 to $8,166, a $4,554 spread on the same certified stone. NZ Jewellers lists it at $8,166. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.43°
Pavilion angle35.92°
OriginNatural
Grading LabGIA
CertificateGIA 6541152972
Dimensions8.12 × 5.80 × 3.69 mm
L/W Ratio1.40
Top View
8.12 mm5.80 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541152972
Side View
Table 63.0%Crown 41.43°Girdle: THK-VTKPavilion 35.92°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: $3,612 AUD|Low: $3,612 AUD|High: $7,923 AUD|Avg: $4,990 AUD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$3,612 AUD
Retailer 8$3,633 AUD
Retailer 5$4,141 AUD
Retailer 9$4,509 AUD
Retailer 2$4,547 AUD
Retailer 3$4,820 AUD
Retailer 7$5,485 AUD
Retailer 4$5,721 AUD
Retailer 6$7,818 AUD

26 data points across 9 retailers

25 retailers$3,612 AUD to $8,166 AUD

A
Cheapest Retailer
-
$3,612 AUD
A
Retailer 2
-
$3,633 AUD
View
B+
Retailer 3
-
$4,002 AUD
View
B+
Retailer 4
-
$4,141 AUD
View
B+
Retailer 5
-
$4,161 AUD
View
B+
Retailer 6
-
$4,325 AUD
View
Final sale: no returns
B+
Retailer 7
-
$4,509 AUD
View
B+
Retailer 8
-
$4,541 AUD
View
B+
Retailer 9
-
$4,547 AUD
View
B+
Retailer 10
-
$4,647 AUD
View
B+
Retailer 11
-
$4,688 AUD
View
Retailer 12
-
$4,688 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$4,820 AUD
View
B+
Retailer 14
-
$4,868 AUD
View
B+
Retailer 15
-
$4,896 AUD
View
Retailer 16
-
$5,025 AUD
View
Price last confirmed 33 days ago
B
Retailer 17
-
$5,040 AUD
View
B
Retailer 18
-
$5,050 AUD
View
B+
Retailer 19
-
$5,408 AUD
View
B+
Retailer 20
-
$5,485 AUD
View
B+
Retailer 21
-
$5,721 AUD
View
B
Retailer 22
-
$6,817 AUD
View
B
Retailer 23
-
$7,008 AUD
View
B
Retailer 24
-
$7,818 AUD
View
Most Expensive
B
NZ Jewellers
8faaa497-440b-47f0-80c3-a48d16237cf2 · Nov 5
$8,166 AUD
$5,611 USD
View
24 more retailers have this diamond
Prices start from $3,612 AUDSave up to $4,554 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
$3,612 AUD