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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 6431067710

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6431067710

Diamond specifications and retailer prices

From €1,662 EUR
As of November 6, 2026
Save €2,243 EUR (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,905 EUR 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6431067710. Listed at 15 retailers as of November 4, 2026, with prices from €1,662 to €3,905, a €2,243 spread on the same certified stone. MOH London lists it at €3,905. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431067710
Dimensions6.62 × 5.39 × 4.00 mm
L/W Ratio1.23
Top View
6.62 mm5.39 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6431067710
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 74.2%

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: €3,905 EUR|Low: €1,651 EUR|High: €3,963 EUR|Avg: €2,441 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7€1,662 EUR
Retailer 8€2,019 EUR
Retailer 10€2,020 EUR
Retailer 9€2,063 EUR
Retailer 3€2,235 EUR
Retailer 5€2,365 EUR
Retailer 6€2,405 EUR
Retailer 11€2,513 EUR
Retailer 4€2,727 EUR
Retailer 2€2,775 EUR
MOH London€3,905 EUR

46 data points across 11 retailers

15 retailers€1,662 EUR to €3,905 EUR

B+
Cheapest Retailer
-
€1,662 EUR
B+
Retailer 2
-
€2,019 EUR
View
B+
Retailer 3
-
€2,020 EUR
View
B+
Retailer 4
-
€2,063 EUR
View
Final sale: no returns
B+
Retailer 5
-
€2,182 EUR
View
Retailer 6
-
€2,235 EUR
View
Price last confirmed 8 days ago
Retailer 7
-
€2,313 EUR
View
Price last confirmed 10 days ago
B
Retailer 8
-
€2,352 EUR
View
B
Retailer 9
-
€2,360 EUR
View
B+
Retailer 10
-
€2,365 EUR
View
B
Retailer 11
-
€2,405 EUR
View
Retailer 12
-
€2,513 EUR
View
Price last confirmed 33 days ago
B
Retailer 13
-
€2,727 EUR
View
B
Retailer 14
-
€2,775 EUR
View
Most Expensive
B
MOH London
EF17A3B57 · Nov 4
€3,905 EUR
£3,433 GBP
View
14 more retailers have this diamond
Prices start from €1,662 EURSave up to €2,243 EUR

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
€1,662 EUR