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Heart|Natural|GIA

1.20ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 2566720338

Certificate GIA 2566720338

Diamond specifications and retailer prices

From £1,954 GBP
As of November 5, 2026
Save £1,788 GBP (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,741 GBP at MOH London · As of November 2, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566720338. Listed at 2 retailers as of November 2, 2026, with prices from £1,954 to £3,741, a £1,788 spread on the same certified stone. MOH London lists it at £3,741. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566720338
Dimensions6.13 × 7.06 × 4.56 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.13 mm7.06 mm1.20 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566720338
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £3,741 GBP|Low: £1,943 GBP|High: £3,741 GBP|Avg: £2,716 GBP
MOH London
Retailer 2
November 5, 2026
Retailer 2£1,954 GBP
MOH London£3,741 GBP

4 data points across 2 retailers

2 retailers£1,954 GBP to £3,741 GBP

B+
Cheapest Retailer
-
£1,954 GBP
Most Expensive
C
MOH London
C94F20DC4 · Nov 2
£3,741 GBP
View
1 more retailer has this diamond
Prices start from £1,954 GBPSave up to £1,788 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
£1,954 GBP