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Oval|Natural|GIA

1.20ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6233809481

Certificate GIA 6233809481

Diamond specifications and retailer prices

From $2,496 AUD
As of November 6, 2026
Save $3,285 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,998 AUD at NZ Jewellers · As of September 25, 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 J 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 6233809481. Listed at 20 retailers as of November 4, 2026, with a 132% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 6233809481
Dimensions8.57 × 6.07 × 3.64 mm
L/W Ratio1.41
Top View
8.57 mm6.07 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233809481
Side View
Table 61.0%CrownGirdle: MED-THKPavilion 40.1°Culet: NoneDepth 59.9%

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: $5,042 AUD|Low: $2,333 AUD|High: $5,934 AUD|Avg: $3,491 AUD
Retailer 1
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 15$2,496 AUD
Retailer 7$2,730 AUD
Retailer 2$2,736 AUD
Retailer 3$2,767 AUD
Retailer 17$2,889 AUD
Retailer 4$2,924 AUD
Retailer 6$2,950 AUD
Retailer 9$3,164 AUD
Retailer 8$3,216 AUD
Retailer 10$3,257 AUD
Retailer 16$3,400 AUD
Retailer 12$3,604 AUD
Retailer 11$4,039 AUD
Retailer 5$4,069 AUD
Retailer 14$4,103 AUD
Retailer 1$5,042 AUD
Retailer 13$5,781 AUD

39 data points across 17 retailers

20 retailers$2,496 AUD to $5,781 AUD

A
Cheapest Retailer
-
$2,496 AUD
A
Retailer 2
-
$2,730 AUD
View
A
Retailer 3
-
$2,736 AUD
View
B+
Retailer 4
-
$2,767 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,889 AUD
View
B+
Retailer 6
-
$2,924 AUD
View
B+
Retailer 7
-
$2,950 AUD
View
B+
Retailer 8
-
$3,164 AUD
View
B+
Retailer 9
-
$3,216 AUD
View
B+
Retailer 10
-
$3,257 AUD
View
B+
Retailer 11
-
$3,400 AUD
View
Retailer 12
-
$3,400 AUD
View
Price last confirmed 16 days ago
Retailer 13
-
$3,439 AUD
View
Price last confirmed 44 days ago
B+
Retailer 14
-
$3,604 AUD
View
B+
Retailer 15
-
$4,039 AUD
View
Retailer 16
-
$4,069 AUD
View
Price last confirmed 31 days ago
B+
Retailer 17
-
$4,103 AUD
View
B
Retailer 18
-
$5,042 AUD
View
B
Retailer 19
-
$5,781 AUD
View
Most Expensive
NZ Jewellers
6e9e7afd-638a-4393-b1f4-e16b02e56af2 · Sep 25
$6,998 AUD
$4,808 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from $2,496 AUDSave up to $3,285 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
$2,496 AUD