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Heart|Natural|GIA

1.20ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 7558798311

Certificate GIA 7558798311

Diamond specifications and retailer prices

From $2,384 AUD
As of November 6, 2026
Save $3,170 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,652 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558798311. Listed at 18 retailers as of November 4, 2026, with a 133% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558798311
Dimensions6.60 × 7.32 × 4.28 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.60 mm7.32 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558798311
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

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: $7,652 AUD|Low: $2,384 AUD|High: $7,652 AUD|Avg: $3,989 AUD|+3.2%
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
November 6, 2026
Retailer 11$2,384 AUD
Retailer 2$2,509 AUD
Retailer 9$2,922 AUD
Retailer 5$2,933 AUD
Retailer 6$3,125 AUD
Retailer 12$3,179 AUD
Retailer 3$3,326 AUD
Retailer 8$3,454 AUD
Retailer 4$3,668 AUD
Retailer 7$3,946 AUD
Retailer 10$5,554 AUD
Retailer 13$6,645 AUD
Queensmith$7,652 AUD

27 data points across 13 retailers

18 retailers$2,384 AUD to $5,554 AUD

A
Cheapest Retailer
-
$2,384 AUD
A
Retailer 2
-
$2,509 AUD
View
A
Retailer 3
-
$2,922 AUD
View
A
Retailer 4
-
$2,933 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,978 AUD
View
A
Retailer 6
-
$3,125 AUD
View
Retailer 7
-
$3,179 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
$3,179 AUD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$3,315 AUD
View
Retailer 10
-
$3,326 AUD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
$3,333 AUD
View
B+
Retailer 12
-
$3,379 AUD
View
B+
Retailer 13
-
$3,454 AUD
View
Retailer 14
-
$3,668 AUD
View
Price last confirmed 18 days ago
B+
Retailer 15
-
$3,946 AUD
View
B
Retailer 16
-
$5,554 AUD
View
Retailer 17
-
$6,645 AUD
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
7558798311 · Oct 28
$7,652 AUD
£4,140 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $2,384 AUDSave up to $3,170 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 Heart
$2,384 AUD