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Round|Natural|GIA

1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1323678673

Certificate GIA 1323678673

Diamond specifications and retailer prices

From $4,797 AUD
As of November 5, 2026
Save $5,899 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,972 AUD at NZ Jewellers · As of September 1, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1323678673. Listed at 19 retailers as of November 5, 2026, with a 123% 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1323678673
Dimensions6.77 × 6.73 × 4.23 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.77 mm6.73 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1323678673
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.8°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 5
Current: $10,696 AUD|Low: $4,554 AUD|High: $10,972 AUD|Avg: $6,390 AUD|-2.5%
NZ Jewellers
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
November 6, 2026
Retailer 18$4,797 AUD
Retailer 16$4,803 AUD
Retailer 5$4,938 AUD
Retailer 2$5,084 AUD
Retailer 3$5,555 AUD
Retailer 8$5,561 AUD
Retailer 9$5,561 AUD
Retailer 10$5,680 AUD
Retailer 11$5,720 AUD
Retailer 12$6,180 AUD
Retailer 6$6,200 AUD
Retailer 17$6,200 AUD
Retailer 13$6,356 AUD
Retailer 7$6,404 AUD
Retailer 14$6,493 AUD
Retailer 4$6,947 AUD
Retailer 15$10,239 AUD
NZ Jewellers$10,696 AUD

42 data points across 18 retailers

19 retailers$4,797 AUD to $10,696 AUD

A
Cheapest Retailer
-
$4,797 AUD
A
Retailer 2
-
$4,803 AUD
View
B+
Retailer 3
-
$4,938 AUD
View
B+
Retailer 4
-
$5,084 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,555 AUD
View
B+
Retailer 6
-
$5,561 AUD
View
Retailer 7
-
$5,561 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$5,720 AUD
View
B+
Retailer 9
-
$6,180 AUD
View
B
Retailer 10
-
$6,200 AUD
View
B
Retailer 11
-
$6,200 AUD
View
B+
Retailer 12
-
$6,356 AUD
View
B+
Retailer 13
-
$6,404 AUD
View
B+
Retailer 14
-
$6,493 AUD
View
Retailer 15
-
$6,583 AUD
View
Price last confirmed 68 days ago
Retailer 16
-
$6,947 AUD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$10,239 AUD
View
B
Retailer 18
-
$10,696 AUD
View
Most Expensive
NZ Jewellers
5791f86e-e269-472e-ac73-02b147a13033 · Sep 1
$10,972 AUD
$7,539 USD
View
Price last confirmed 66 days ago
18 more retailers have this diamond
Prices start from $4,797 AUDSave up to $5,899 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
$4,797 AUD