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Heart|Natural|GIA

1.20ct F SI2 Heart Natural Diamond

VG • F/SI2 • GIA 5553163504

Certificate GIA 5553163504

Diamond specifications and retailer prices

From £1,671 GBP
As of November 6, 2026
Save £2,059 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,730 GBP at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553163504. Listed at 12 retailers as of November 4, 2026, with prices from £1,671 to £3,730, a £2,059 spread on the same certified stone. MOH London lists it at £3,730. 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

1.20
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553163504
Dimensions7.50 × 6.31 × 4.40 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.50 mm6.31 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553163504
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,730 GBP|Low: £1,916 GBP|High: £4,421 GBP|Avg: £2,608 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£1,916 GBP
Retailer 8£1,985 GBP
Retailer 7£2,004 GBP
Retailer 2£2,099 GBP
Retailer 4£2,210 GBP
Retailer 3£2,485 GBP
MOH London£3,730 GBP
Retailer 6£4,421 GBP

44 data points across 8 retailers

12 retailers£1,671 GBP to £3,730 GBP

A
Cheapest Retailer
-
£1,671 GBP
Retailer 2
-
£1,916 GBP
View
Price last confirmed 16 days ago
B+
Retailer 3
-
£1,985 GBP
View
Retailer 4
-
£2,004 GBP
View
Price last confirmed 16 days ago
B+
Retailer 5
-
£2,040 GBP
View
B+
Retailer 6
-
£2,099 GBP
View
Retailer 7
-
£2,210 GBP
View
Price last confirmed 15 days ago
B
Retailer 8
-
£2,211 GBP
View
B
Retailer 9
-
£2,211 GBP
View
B
Retailer 10
-
£2,286 GBP
View
B+
Retailer 11
-
£2,485 GBP
View
Most Expensive
B
MOH London
040CF0DAD · Nov 4
£3,730 GBP
View
11 more retailers have this diamond
Prices start from £1,671 GBPSave up to £2,059 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.

A
1.20ct Heart
£1,671 GBP