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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1533924090

Certificate GIA 1533924090

Diamond specifications and retailer prices

From $2,998 AUD
As of November 6, 2026
Save $4,098 AUD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,469 AUD at NZ Jewellers · As of October 17, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533924090. Listed at 20 retailers as of November 1, 2026, with a 137% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1533924090
Dimensions6.90 × 6.86 × 4.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity, Feather, Cloud, Indented Natural, Needle
Top View
6.90 mm6.86 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533924090
Side View
Table 62.0%Crown 33.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 59.5%

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: $3,116 AUD|Low: $2,998 AUD|High: $8,390 AUD|Avg: $4,792 AUD|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$2,998 AUD
Retailer 1$3,116 AUD
Retailer 8$3,590 AUD
Retailer 10$3,640 AUD
Retailer 4$3,752 AUD
Retailer 11$4,031 AUD
Retailer 5$4,149 AUD
Retailer 9$4,149 AUD
Retailer 6$4,168 AUD
Retailer 7$4,899 AUD
Retailer 2$7,097 AUD
Retailer 3$8,373 AUD

35 data points across 12 retailers

20 retailers$2,998 AUD to $7,097 AUD

A
Cheapest Retailer
-
$2,998 AUD
A
Retailer 2
-
$3,116 AUD
View
A
Retailer 3
-
$3,590 AUD
View
A
Retailer 4
-
$3,640 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,752 AUD
View
A
Retailer 6
-
$3,813 AUD
View
B+
Retailer 7
-
$4,031 AUD
View
Retailer 8
-
$4,050 AUD
View
Price last confirmed 39 days ago
Retailer 9
-
$4,050 AUD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,050 AUD
View
Price last confirmed 17 days ago
A
Retailer 11
-
$4,149 AUD
View
B+
Retailer 12
-
$4,149 AUD
View
B+
Retailer 13
-
$4,168 AUD
View
Retailer 14
-
$4,206 AUD
View
Price last confirmed 38 days ago
Retailer 15
-
$4,673 AUD
View
Price last confirmed 38 days ago
B+
Retailer 16
-
$4,899 AUD
View
B
Retailer 17
-
$7,097 AUD
View
Retailer 18
-
$8,373 AUD
View
Price last confirmed 9 days ago
Retailer 19
-
$8,469 AUD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
d9be7301-fc6b-489b-9c07-310e44e36e8d · Oct 17
$8,469 AUD
$5,819 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $2,998 AUDSave up to $4,098 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
$2,998 AUD