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Heart|Natural|GIA

1.21ct F SI2 Heart Natural Diamond

FR • F/SI2 • GIA 7548099120

Certificate GIA 7548099120

Diamond specifications and retailer prices

From £1,523 GBP
As of November 6, 2026
Save £2,284 GBP (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,807 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7548099120. Listed at 8 retailers as of November 5, 2026, with prices from £1,523 to £3,807, a £2,284 spread on the same certified stone. NZ Jewellers lists it at £3,807. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Colour
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7548099120
Dimensions7.13 × 5.96 × 3.83 mm
L/W Ratio1.20
Key to symbols
Crystal, Pinpoint, Indented Natural
Top View
7.13 mm5.96 mm1.21 ctF / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7548099120
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.2%

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: £3,807 GBP|Low: £1,269 GBP|High: £4,090 GBP|Avg: £2,204 GBP|+8.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 10£1,523 GBP
Retailer 2£1,603 GBP
Retailer 9£1,650 GBP
Retailer 7£1,726 GBP
Retailer 11£1,915 GBP
Retailer 8£1,942 GBP
Retailer 12£2,004 GBP
Retailer 6£2,006 GBP
Retailer 4£2,250 GBP
Retailer 3£3,001 GBP
Retailer 5£3,182 GBP
NZ Jewellers£3,807 GBP

32 data points across 12 retailers

8 retailers£1,523 GBP to £3,807 GBP

B+
Cheapest Retailer
-
£1,523 GBP
Final sale: no returns
B+
Retailer 2
-
£1,603 GBP
View
B+
Retailer 3
-
£1,650 GBP
View
B+
Retailer 4
-
£1,726 GBP
View
B
Retailer 5
-
£1,942 GBP
View
B
Retailer 6
-
£2,006 GBP
View
C
Retailer 7
-
£3,182 GBP
View
Most Expensive
C
NZ Jewellers
0255056a-ebd4-46b8-ad82-8016af169136 · Nov 5
£3,807 GBP
$5,096 USD
View
7 more retailers have this diamond
Prices start from £1,523 GBPSave up to £2,284 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+
1.21ct Heart
£1,523 GBP