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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6541633033

Certificate GIA 6541633033

Diamond specifications and retailer prices

From $2,409 AUD
As of November 6, 2026
Save $3,167 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,672 AUD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541633033. Listed at 20 retailers as of November 4, 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6541633033
Dimensions6.77 × 6.74 × 4.24 mm
L/W Ratio1.00
Top View
6.77 mm6.74 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541633033
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $3,962 AUD|Low: $2,409 AUD|High: $5,657 AUD|Avg: $3,608 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 5$2,409 AUD
Retailer 6$2,554 AUD
Retailer 7$2,669 AUD
Retailer 8$2,890 AUD
Retailer 3$3,446 AUD
Retailer 2$3,714 AUD
Retailer 1$3,962 AUD
Retailer 4$5,576 AUD

38 data points across 8 retailers

20 retailers$2,409 AUD to $5,576 AUD

A
Cheapest Retailer
-
$2,409 AUD
A
Retailer 2
-
$2,554 AUD
View
A
Retailer 3
-
$2,612 AUD
View
A
Retailer 4
-
$2,669 AUD
View
Final sale: no returns
Retailer 5
-
$2,890 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$2,890 AUD
View
Price last confirmed 50 days ago
Retailer 7
-
$2,890 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$2,981 AUD
View
Retailer 9
-
$3,024 AUD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$3,231 AUD
View
B+
Retailer 11
-
$3,231 AUD
View
Retailer 12
-
$3,336 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
$3,336 AUD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$3,347 AUD
View
B+
Retailer 15
-
$3,446 AUD
View
B+
Retailer 16
-
$3,714 AUD
View
B+
Retailer 17
-
$3,962 AUD
View
B
Retailer 18
-
$5,576 AUD
View
Retailer 19
-
$6,672 AUD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
3cc92061-c7d1-4186-8fff-b7d8e6c2af42 · Sep 19
$6,672 AUD
$4,584 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $2,409 AUDSave up to $3,167 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 Round
$2,409 AUD