Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6542139244

Certificate GIA 6542139244

Diamond specifications and retailer prices

From €1,927 EUR
As of November 6, 2026
Save €2,388 EUR (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,410 EUR at NZ Jewellers · As of September 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542139244. Listed at 16 retailers as of November 4, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542139244
Dimensions6.43 × 7.26 × 4.15 mm
L/W Ratio1.13
Top View
6.43 mm7.26 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542139244
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €1,927 EUR|Low: €1,809 EUR|High: €4,454 EUR|Avg: €2,643 EUR|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 1€1,927 EUR
Retailer 3€2,051 EUR
Retailer 9€2,288 EUR
Retailer 4€2,318 EUR
Retailer 13€2,480 EUR
Retailer 11€2,530 EUR
Retailer 12€2,715 EUR
Retailer 6€2,739 EUR
Retailer 10€2,767 EUR
Retailer 5€2,814 EUR
Retailer 2€2,956 EUR
Retailer 7€3,158 EUR
Retailer 8€4,315 EUR

39 data points across 13 retailers

16 retailers€1,927 EUR to €4,315 EUR

A
Cheapest Retailer
-
€1,927 EUR
A
Retailer 2
-
€2,051 EUR
View
Final sale: no returns
B+
Retailer 3
-
€2,288 EUR
View
B+
Retailer 4
-
€2,318 EUR
View
B+
Retailer 5
-
€2,480 EUR
View
B+
Retailer 6
-
€2,530 EUR
View
Retailer 7
-
€2,588 EUR
View
Price last confirmed 42 days ago
B+
Retailer 8
-
€2,715 EUR
View
B+
Retailer 9
-
€2,739 EUR
View
B+
Retailer 10
-
€2,767 EUR
View
Retailer 11
-
€2,814 EUR
View
Price last confirmed 30 days ago
B
Retailer 12
-
€2,956 EUR
View
Retailer 13
-
€2,985 EUR
View
Price last confirmed 43 days ago
B+
Retailer 14
-
€3,158 EUR
View
B
Retailer 15
-
€4,315 EUR
View
Most Expensive
NZ Jewellers
c27b58b6-618b-44f8-bf85-af67dd7fc74f · Sep 25
€5,410 EUR
$6,040 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from €1,927 EURSave up to €2,388 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.

A
1.21ct Heart
€1,927 EUR