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Oval|Natural|GIA

1.20ct D SI2 Oval Natural Diamond

ID • D/SI2 • GIA 2566223748

Certificate GIA 2566223748

Diamond specifications and retailer prices

From $3,912 AUD
As of November 6, 2026
Save $5,119 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,297 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 D 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 2566223748. Listed at 20 retailers as of November 5, 2026, with a 131% 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566223748
Dimensions8.22 × 5.95 × 3.79 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Natural
Top View
8.22 mm5.95 mm1.20 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566223748
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.6%

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: $9,297 AUD|Low: $3,874 AUD|High: $9,371 AUD|Avg: $5,811 AUD|-0.8%
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 18$3,912 AUD
Retailer 2$4,058 AUD
Retailer 15$4,603 AUD
Retailer 10$4,686 AUD
Retailer 8$4,699 AUD
Retailer 7$4,784 AUD
Retailer 12$5,097 AUD
Retailer 6$5,184 AUD
Retailer 19$5,184 AUD
Retailer 14$5,365 AUD
Retailer 3$5,384 AUD
Retailer 11$5,394 AUD
Retailer 13$5,437 AUD
Retailer 9$5,501 AUD
Retailer 4$5,982 AUD
Retailer 17$6,066 AUD
Retailer 16$8,647 AUD
Retailer 5$9,031 AUD
Queensmith$9,297 AUD

23 data points across 19 retailers

20 retailers$3,912 AUD to $9,031 AUD

A
Cheapest Retailer
-
$3,912 AUD
A
Retailer 2
-
$4,058 AUD
View
A
Retailer 3
-
$4,603 AUD
View
A
Retailer 4
-
$4,686 AUD
View
A
Retailer 5
-
$4,699 AUD
View
A
Retailer 6
-
$4,784 AUD
View
Final sale: no returns
A
Retailer 7
-
$4,845 AUD
View
A
Retailer 8
-
$5,097 AUD
View
Retailer 9
-
$5,184 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$5,184 AUD
View
B+
Retailer 11
-
$5,365 AUD
View
B+
Retailer 12
-
$5,384 AUD
View
B+
Retailer 13
-
$5,394 AUD
View
B+
Retailer 14
-
$5,437 AUD
View
B+
Retailer 15
-
$5,501 AUD
View
B+
Retailer 16
-
$5,982 AUD
View
B+
Retailer 17
-
$6,066 AUD
View
B
Retailer 18
-
$8,647 AUD
View
B
Retailer 19
-
$9,031 AUD
View
Most Expensive
Queensmith
2566223748 · Oct 28
$9,297 AUD
£5,030 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $3,912 AUDSave up to $5,119 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
$3,912 AUD