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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 1548073663

Certificate GIA 1548073663

Diamond specifications and retailer prices

From $4,357 AUD
As of November 5, 2026
Save $691 AUD (14%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,706 AUD at Queensmith · As of October 7, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548073663. Listed at 14 retailers as of November 5, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548073663
Dimensions7.35 × 6.51 × 4.44 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity
Top View
7.35 mm6.51 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1548073663
Side View
Table 61.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,706 AUD|Low: $3,595 AUD|High: $8,863 AUD|Avg: $5,386 AUD|-1.5%
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 5, 2026
Retailer 10$3,595 AUD
Retailer 15$3,882 AUD
Retailer 17$4,023 AUD
Retailer 2$4,357 AUD
Retailer 7$4,587 AUD
Retailer 8$4,592 AUD
Retailer 6$4,908 AUD
Retailer 12$4,940 AUD
Retailer 11$4,964 AUD
Retailer 16$5,036 AUD
Retailer 9$5,049 AUD
Retailer 14$5,094 AUD
Retailer 3$5,261 AUD
Retailer 4$5,916 AUD
Retailer 13$8,284 AUD
Retailer 5$8,305 AUD
Queensmith$8,706 AUD

20 data points across 17 retailers

14 retailers$4,357 AUD to $5,049 AUD

Retailer 1
-
$3,595 AUD
Price last confirmed 30 days ago
B+
Retailer 2
-
$4,357 AUD
View
Retailer 3
-
$4,451 AUD
View
Price last confirmed 37 days ago
B+
Retailer 4
-
$4,587 AUD
View
Retailer 5
-
$4,908 AUD
View
Price last confirmed 37 days ago
Retailer 6
-
$5,036 AUD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$5,049 AUD
View
Retailer 8
-
$5,095 AUD
View
Price last confirmed 37 days ago
Retailer 9
-
$5,261 AUD
View
Price last confirmed 34 days ago
Retailer 10
-
$5,662 AUD
View
Price last confirmed 39 days ago
Retailer 11
-
$5,916 AUD
View
Price last confirmed 38 days ago
Retailer 12
-
$8,284 AUD
View
Price last confirmed 32 days ago
Retailer 13
-
$8,305 AUD
View
Price last confirmed 33 days ago
Most Expensive
Queensmith
1548073663 · Oct 7
$8,706 AUD
£4,710 GBP
View
Price last confirmed 30 days ago
13 more retailers have this diamond
Prices start from $4,357 AUDSave up to $691 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.

B+
1.20ct Heart
$4,357 AUD