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Oval|Natural|GIA

1.20ct G SI2 Oval Natural Diamond

ID • G/SI2 • GIA 1236692018

Certificate GIA 1236692018

Diamond specifications and retailer prices

From $3,409 AUD
As of November 6, 2026
Save $3,975 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,715 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 G 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 1236692018. Listed at 18 retailers as of November 4, 2026, with a 117% 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236692018
Dimensions8.53 × 6.05 × 3.74 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
8.53 mm6.05 mm1.20 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236692018
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.9%

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: $8,715 AUD|Low: $3,409 AUD|High: $8,743 AUD|Avg: $5,079 AUD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$3,409 AUD
Retailer 2$3,537 AUD
Retailer 6$4,045 AUD
Retailer 3$4,087 AUD
Retailer 10$4,635 AUD
Retailer 5$4,660 AUD
Retailer 4$4,734 AUD
Retailer 8$4,803 AUD
Retailer 11$5,183 AUD
Retailer 7$7,383 AUD
Queensmith$8,715 AUD

30 data points across 11 retailers

18 retailers$3,409 AUD to $7,383 AUD

A
Cheapest Retailer
-
$3,409 AUD
A
Retailer 2
-
$3,537 AUD
View
A
Retailer 3
-
$4,045 AUD
View
A
Retailer 4
-
$4,087 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,257 AUD
View
Retailer 6
-
$4,468 AUD
View
Price last confirmed 19 days ago
Retailer 7
-
$4,468 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$4,510 AUD
View
Price last confirmed 39 days ago
B+
Retailer 9
-
$4,635 AUD
View
B+
Retailer 10
-
$4,660 AUD
View
B+
Retailer 11
-
$4,662 AUD
View
B+
Retailer 12
-
$4,734 AUD
View
B+
Retailer 13
-
$4,803 AUD
View
B+
Retailer 14
-
$5,183 AUD
View
Retailer 15
-
$5,205 AUD
View
Price last confirmed 38 days ago
B
Retailer 16
-
$7,383 AUD
View
Retailer 17
-
$7,858 AUD
View
Price last confirmed 37 days ago
Most Expensive
Queensmith
1236692018 · Oct 28
$8,715 AUD
£4,715 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $3,409 AUDSave up to $3,975 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
$3,409 AUD