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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 £2,237 GBP
As of November 5, 2026
Save £355 GBP (14%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,469 GBP 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: £4,469 GBP|Low: £1,845 GBP|High: £4,550 GBP|Avg: £2,767 GBP|-1.1%
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£1,845 GBP
Retailer 15£1,993 GBP
Retailer 17£2,065 GBP
Retailer 2£2,237 GBP
Retailer 7£2,355 GBP
Retailer 8£2,357 GBP
Retailer 6£2,519 GBP
Retailer 12£2,536 GBP
Retailer 11£2,548 GBP
Retailer 16£2,585 GBP
Retailer 9£2,592 GBP
Retailer 14£2,615 GBP
Retailer 3£2,701 GBP
Retailer 4£3,037 GBP
Retailer 13£4,253 GBP
Retailer 5£4,263 GBP
Queensmith£4,469 GBP

21 data points across 17 retailers

14 retailers£2,237 GBP to £2,592 GBP

Retailer 1
-
£1,845 GBP
Price last confirmed 29 days ago
B+
Retailer 2
-
£2,237 GBP
View
Retailer 3
-
£2,285 GBP
View
Price last confirmed 36 days ago
B+
Retailer 4
-
£2,355 GBP
View
Retailer 5
-
£2,519 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
£2,585 GBP
View
Price last confirmed 30 days ago
B+
Retailer 7
-
£2,592 GBP
View
Retailer 8
-
£2,616 GBP
View
Price last confirmed 36 days ago
Retailer 9
-
£2,701 GBP
View
Price last confirmed 33 days ago
Retailer 10
-
£2,906 GBP
View
Price last confirmed 38 days ago
Retailer 11
-
£3,037 GBP
View
Price last confirmed 37 days ago
Retailer 12
-
£4,253 GBP
View
Price last confirmed 31 days ago
Retailer 13
-
£4,263 GBP
View
Price last confirmed 32 days ago
Most Expensive
Queensmith
1548073663 · Oct 7
£4,469 GBP
View
Price last confirmed 30 days ago
13 more retailers have this diamond
Prices start from £2,237 GBPSave up to £355 GBP

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
£2,237 GBP