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Heart|Natural|GIA

1.20ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 1509270809

Certificate GIA 1509270809

Diamond specifications and retailer prices

From £2,826 GBP
As of November 6, 2026
Save £3,349 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,175 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 1509270809. Listed at 14 retailers as of November 5, 2026, with prices from £2,826 to £6,175, a £3,349 spread on the same certified stone. NZ Jewellers lists it at £6,175. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1509270809
Dimensions6.26 × 7.39 × 4.56 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
6.26 mm7.39 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509270809
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.7%

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 6
Current: £6,175 GBP|Low: £2,918 GBP|High: £6,175 GBP|Avg: £3,936 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£2,918 GBP
Retailer 4£3,211 GBP
Retailer 6£3,211 GBP
Retailer 8£3,211 GBP
Retailer 2£3,485 GBP
Retailer 3£3,490 GBP
Retailer 5£3,705 GBP
Retailer 7£5,645 GBP
NZ Jewellers£6,175 GBP

34 data points across 9 retailers

14 retailers£2,826 GBP to £6,175 GBP

B+
Cheapest Retailer
-
£2,826 GBP
B
Retailer 2
-
£2,918 GBP
View
B
Retailer 3
-
£3,016 GBP
View
B
Retailer 4
-
£3,195 GBP
View
B
Retailer 5
-
£3,211 GBP
View
B
Retailer 6
-
£3,211 GBP
View
Retailer 7
-
£3,211 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£3,485 GBP
View
B
Retailer 9
-
£3,490 GBP
View
B
Retailer 10
-
£3,705 GBP
View
Retailer 11
-
£3,705 GBP
View
Price last confirmed 29 days ago
Retailer 12
-
£3,914 GBP
View
Price last confirmed 15 days ago
B
Retailer 13
-
£5,645 GBP
View
Most Expensive
B
NZ Jewellers
3b720932-fd33-4e95-af39-8e3c3886d0cb · Nov 5
£6,175 GBP
$8,265 USD
View
13 more retailers have this diamond
Prices start from £2,826 GBPSave up to £3,349 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
£2,826 GBP