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Oval|Natural|GIA

1.20ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 1539005392

Certificate GIA 1539005392

Diamond specifications and retailer prices

From $3,540 AUD
As of November 6, 2026
Save $4,484 AUD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,863 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539005392. Listed at 19 retailers as of November 5, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539005392
Dimensions8.51 × 5.72 × 3.67 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Indented Natural
Top View
8.51 mm5.72 mm1.20 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1539005392
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.2%

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: $8,863 AUD|Low: $3,540 AUD|High: $8,891 AUD|Avg: $5,565 AUD|-0.3%
Queensmith
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 5$3,540 AUD
Retailer 2$3,679 AUD
Retailer 13$4,210 AUD
Retailer 8$4,251 AUD
Retailer 10$4,528 AUD
Retailer 15$4,606 AUD
Retailer 9$4,649 AUD
Retailer 12$4,737 AUD
Retailer 17$4,782 AUD
Retailer 6$4,813 AUD
Retailer 11$4,927 AUD
Retailer 3$4,963 AUD
Retailer 4$5,314 AUD
Retailer 7$5,389 AUD
Retailer 14$7,682 AUD
Retailer 16$8,024 AUD
Queensmith$8,863 AUD

23 data points across 17 retailers

19 retailers$3,540 AUD to $8,024 AUD

A
Cheapest Retailer
-
$3,540 AUD
A
Retailer 2
-
$3,679 AUD
View
A
Retailer 3
-
$4,210 AUD
View
A
Retailer 4
-
$4,251 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,432 AUD
View
B+
Retailer 6
-
$4,528 AUD
View
B+
Retailer 7
-
$4,606 AUD
View
B+
Retailer 8
-
$4,633 AUD
View
Retailer 9
-
$4,649 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,737 AUD
View
B+
Retailer 11
-
$4,782 AUD
View
B+
Retailer 12
-
$4,813 AUD
View
B+
Retailer 13
-
$4,927 AUD
View
B+
Retailer 14
-
$4,963 AUD
View
B+
Retailer 15
-
$5,314 AUD
View
B+
Retailer 16
-
$5,389 AUD
View
B
Retailer 17
-
$7,682 AUD
View
B
Retailer 18
-
$8,024 AUD
View
Most Expensive
Queensmith
1539005392 · Oct 28
$8,863 AUD
£4,795 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $3,540 AUDSave up to $4,484 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
$3,540 AUD