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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1533797921

Certificate GIA 1533797921

Diamond specifications and retailer prices

From $3,566 AUD
As of November 4, 2026
Save $4,260 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,944 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533797921. Listed at 21 retailers as of November 4, 2026, with a 119% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1533797921
Dimensions6.79 × 6.74 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Cloud, Needle
Top View
6.79 mm6.74 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1533797921
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 4
Current: $8,944 AUD|Low: $3,566 AUD|High: $8,944 AUD|Avg: $5,362 AUD|+2.7%
Queensmith
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 3$3,566 AUD
Retailer 7$3,721 AUD
Retailer 2$4,118 AUD
Retailer 8$4,317 AUD
Retailer 12$4,330 AUD
Retailer 4$4,423 AUD
Retailer 10$4,828 AUD
Retailer 5$4,897 AUD
Retailer 6$4,968 AUD
Retailer 9$5,457 AUD
Retailer 11$7,825 AUD
Queensmith$8,944 AUD

27 data points across 12 retailers

21 retailers$3,566 AUD to $7,825 AUD

A
Cheapest Retailer
-
$3,566 AUD
A
Retailer 2
-
$3,721 AUD
View
A
Retailer 3
-
$4,118 AUD
View
A
Retailer 4
-
$4,317 AUD
View
A
Retailer 5
-
$4,330 AUD
View
Final sale: no returns
A
Retailer 6
-
$4,423 AUD
View
A
Retailer 7
-
$4,545 AUD
View
A
Retailer 8
-
$4,828 AUD
View
Retailer 9
-
$4,861 AUD
View
Price last confirmed 60 days ago
Retailer 10
-
$4,861 AUD
View
Price last confirmed 28 days ago
Retailer 11
-
$4,861 AUD
View
Price last confirmed 25 days ago
A
Retailer 12
-
$4,897 AUD
View
A
Retailer 13
-
$4,968 AUD
View
Retailer 14
-
$5,048 AUD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$5,457 AUD
View
Retailer 16
-
$5,610 AUD
View
Price last confirmed 60 days ago
Retailer 17
-
$5,610 AUD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$7,825 AUD
View
Retailer 19
-
$8,470 AUD
View
Price last confirmed 66 days ago
Retailer 20
-
$8,470 AUD
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
1533797921 · Oct 28
$8,944 AUD
£4,930 GBP
View
Price last confirmed 8 days ago
20 more retailers have this diamond
Prices start from $3,566 AUDSave up to $4,260 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
$3,566 AUD