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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 $5,401 NZD
As of November 5, 2026
Save $857 NZD (14%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,790 NZD 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: $10,790 NZD|Low: $4,456 NZD|High: $10,985 NZD|Avg: $6,676 NZD|-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$4,456 NZD
Retailer 15$4,811 NZD
Retailer 17$4,986 NZD
Retailer 2$5,401 NZD
Retailer 7$5,686 NZD
Retailer 8$5,691 NZD
Retailer 6$6,083 NZD
Retailer 12$6,122 NZD
Retailer 11$6,153 NZD
Retailer 16$6,241 NZD
Retailer 9$6,258 NZD
Retailer 14$6,314 NZD
Retailer 3$6,521 NZD
Retailer 4$7,333 NZD
Retailer 13$10,268 NZD
Retailer 5$10,293 NZD
Queensmith$10,790 NZD

20 data points across 17 retailers

14 retailers$5,401 NZD to $6,258 NZD

Retailer 1
-
$4,456 NZD
Price last confirmed 30 days ago
B+
Retailer 2
-
$5,401 NZD
View
Retailer 3
-
$5,516 NZD
View
Price last confirmed 37 days ago
B+
Retailer 4
-
$5,686 NZD
View
Retailer 5
-
$6,083 NZD
View
Price last confirmed 37 days ago
Retailer 6
-
$6,241 NZD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$6,258 NZD
View
Retailer 8
-
$6,315 NZD
View
Price last confirmed 37 days ago
Retailer 9
-
$6,521 NZD
View
Price last confirmed 34 days ago
Retailer 10
-
$7,017 NZD
View
Price last confirmed 39 days ago
Retailer 11
-
$7,333 NZD
View
Price last confirmed 38 days ago
Retailer 12
-
$10,268 NZD
View
Price last confirmed 32 days ago
Retailer 13
-
$10,293 NZD
View
Price last confirmed 33 days ago
Most Expensive
Queensmith
1548073663 · Oct 7
$10,790 NZD
£4,710 GBP
View
Price last confirmed 30 days ago
13 more retailers have this diamond
Prices start from $5,401 NZDSave up to $857 NZD

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
$5,401 NZD