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Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2203906541

Certificate GIA 2203906541

Diamond specifications and retailer prices

From €3,210 EUR
As of November 6, 2026
Save €3,414 EUR (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,624 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2203906541. Listed at 19 retailers as of November 4, 2026, with prices from €3,210 to €6,624, a €3,414 spread on the same certified stone. MOH London lists it at €6,624. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2203906541
Dimensions6.42 × 5.69 × 3.79 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.42 mm5.69 mm1.21 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2203906541
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.6%

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: €6,624 EUR|Low: €2,742 EUR|High: €6,721 EUR|Avg: €4,181 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10€3,210 EUR
Retailer 6€3,290 EUR
Retailer 5€3,324 EUR
Retailer 7€3,487 EUR
Retailer 9€3,778 EUR
Retailer 3€4,081 EUR
Retailer 8€4,203 EUR
Retailer 2€4,435 EUR
Retailer 4€5,087 EUR
MOH London€6,624 EUR

46 data points across 10 retailers

19 retailers€3,210 EUR to €6,624 EUR

B+
Cheapest Retailer
-
€3,210 EUR
B+
Retailer 2
-
€3,258 EUR
View
B+
Retailer 3
-
€3,290 EUR
View
B
Retailer 4
-
€3,324 EUR
View
B
Retailer 5
-
€3,331 EUR
View
B
Retailer 6
-
€3,487 EUR
View
Final sale: no returns
B
Retailer 7
-
€3,592 EUR
View
B
Retailer 8
-
€3,761 EUR
View
Retailer 9
-
€3,778 EUR
View
Price last confirmed 8 days ago
B
Retailer 10
-
€3,839 EUR
View
Retailer 11
-
€3,856 EUR
View
Price last confirmed 14 days ago
B
Retailer 12
-
€4,012 EUR
View
B
Retailer 13
-
€4,081 EUR
View
Retailer 14
-
€4,203 EUR
View
Price last confirmed 28 days ago
B
Retailer 15
-
€4,349 EUR
View
B
Retailer 16
-
€4,435 EUR
View
B
Retailer 17
-
€5,087 EUR
View
C
Retailer 18
-
€6,031 EUR
View
Most Expensive
B
MOH London
134D3AFB4 · Nov 4
€6,624 EUR
£5,823 GBP
View
18 more retailers have this diamond
Prices start from €3,210 EURSave up to €3,414 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+
1.21ct Heart
€3,210 EUR