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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 5563279764

Certificate GIA 5563279764

Diamond specifications and retailer prices

From $3,437 AUD
As of November 4, 2026
Save $4,524 AUD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,699 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 5563279764. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563279764
Dimensions6.76 × 6.80 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Needle
Top View
6.76 mm6.80 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5563279764
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 4
Current: $8,699 AUD|Low: $3,437 AUD|High: $8,735 AUD|Avg: $5,365 AUD|+2.8%
Queensmith
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
November 6, 2026
Retailer 13$3,437 AUD
Retailer 10$3,591 AUD
Retailer 2$4,010 AUD
Retailer 11$4,317 AUD
Retailer 4$4,570 AUD
Retailer 14$4,570 AUD
Retailer 8$4,698 AUD
Retailer 3$4,745 AUD
Retailer 7$4,788 AUD
Retailer 5$5,273 AUD
Retailer 9$5,307 AUD
Retailer 12$7,621 AUD
Retailer 6$7,961 AUD
Queensmith$8,699 AUD

25 data points across 14 retailers

20 retailers$3,437 AUD to $7,961 AUD

A
Cheapest Retailer
-
$3,437 AUD
A
Retailer 2
-
$3,591 AUD
View
A
Retailer 3
-
$4,010 AUD
View
A
Retailer 4
-
$4,150 AUD
View
A
Retailer 5
-
$4,180 AUD
View
A
Retailer 6
-
$4,217 AUD
View
Final sale: no returns
A
Retailer 7
-
$4,226 AUD
View
A
Retailer 8
-
$4,317 AUD
View
A
Retailer 9
-
$4,570 AUD
View
Retailer 10
-
$4,570 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$4,614 AUD
View
A
Retailer 12
-
$4,698 AUD
View
A
Retailer 13
-
$4,745 AUD
View
A
Retailer 14
-
$4,774 AUD
View
A
Retailer 15
-
$4,788 AUD
View
B+
Retailer 16
-
$5,273 AUD
View
B+
Retailer 17
-
$5,307 AUD
View
B+
Retailer 18
-
$7,621 AUD
View
B
Retailer 19
-
$7,961 AUD
View
Most Expensive
Queensmith
5563279764 · Oct 28
$8,699 AUD
£4,795 GBP
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from $3,437 AUDSave up to $4,524 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
$3,437 AUD