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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6565551713

Certificate GIA 6565551713

Diamond specifications and retailer prices

From $4,023 AUD
As of November 4, 2026
Save $5,278 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,334 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 6565551713. Listed at 18 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6565551713
Dimensions6.75 × 6.78 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.75 mm6.78 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565551713
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 4
Current: $9,334 AUD|Low: $3,986 AUD|High: $9,334 AUD|Avg: $5,924 AUD|+0.4%
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 15$4,023 AUD
Retailer 13$4,183 AUD
Retailer 2$4,685 AUD
Retailer 6$4,823 AUD
Retailer 8$4,927 AUD
Retailer 10$5,077 AUD
Retailer 3$5,338 AUD
Retailer 7$5,338 AUD
Retailer 11$5,458 AUD
Retailer 4$5,544 AUD
Retailer 5$5,547 AUD
Retailer 16$5,710 AUD
Retailer 17$6,160 AUD
Retailer 12$6,201 AUD
Retailer 14$8,904 AUD
Retailer 9$9,301 AUD
Queensmith$9,334 AUD

15 data points across 17 retailers

18 retailers$4,023 AUD to $9,301 AUD

A
Cheapest Retailer
-
$4,023 AUD
A
Retailer 2
-
$4,183 AUD
View
A
Retailer 3
-
$4,685 AUD
View
A
Retailer 4
-
$4,821 AUD
View
A
Retailer 5
-
$4,823 AUD
View
A
Retailer 6
-
$4,927 AUD
View
Final sale: no returns
A
Retailer 7
-
$5,077 AUD
View
Retailer 8
-
$5,338 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$5,338 AUD
View
B+
Retailer 10
-
$5,458 AUD
View
B+
Retailer 11
-
$5,544 AUD
View
B+
Retailer 12
-
$5,547 AUD
View
B+
Retailer 13
-
$5,710 AUD
View
B+
Retailer 14
-
$6,160 AUD
View
B+
Retailer 15
-
$6,201 AUD
View
B
Retailer 16
-
$8,904 AUD
View
B
Retailer 17
-
$9,301 AUD
View
Most Expensive
Queensmith
6565551713 · Oct 28
$9,334 AUD
£5,145 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $4,023 AUDSave up to $5,278 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
$4,023 AUD