Heart|Natural|GIA

1.21ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6552329003

Certificate GIA 6552329003

Diamond specifications and retailer prices

From €1,570 EUR
As of November 6, 2026
Save €2,050 EUR (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,702 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552329003. Listed at 17 retailers as of November 6, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552329003
Dimensions6.29 × 7.39 × 4.32 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.29 mm7.39 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552329003
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.5%

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: €3,620 EUR|Low: €1,548 EUR|High: €3,884 EUR|Avg: €2,164 EUR|-6.8%
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
Retailer 14
November 7, 2026
Retailer 3€1,570 EUR
Retailer 5€1,665 EUR
Retailer 12€1,718 EUR
Retailer 4€1,737 EUR
Retailer 8€1,829 EUR
Retailer 10€1,844 EUR
Retailer 6€1,886 EUR
Retailer 11€1,903 EUR
Retailer 14€1,935 EUR
Retailer 7€2,039 EUR
Retailer 2€2,134 EUR
Retailer 9€2,536 EUR
Retailer 13€3,185 EUR
Retailer 1€3,620 EUR

28 data points across 14 retailers

17 retailers€1,570 EUR to €3,620 EUR

A
Cheapest Retailer
-
€1,570 EUR
A
Retailer 2
-
€1,665 EUR
View
A
Retailer 3
-
€1,718 EUR
View
A
Retailer 4
-
€1,737 EUR
View
Final sale: no returns
A
Retailer 5
-
€1,829 EUR
View
A
Retailer 6
-
€1,844 EUR
View
A
Retailer 7
-
€1,886 EUR
View
B+
Retailer 8
-
€1,903 EUR
View
A
Retailer 9
-
€1,935 EUR
View
B+
Retailer 10
-
€2,039 EUR
View
B+
Retailer 11
-
€2,134 EUR
View
B+
Retailer 12
-
€2,362 EUR
View
B+
Retailer 13
-
€2,536 EUR
View
Retailer 14
-
€2,704 EUR
View
Price last confirmed 31 days ago
B
Retailer 15
-
€3,185 EUR
View
B
Retailer 16
-
€3,620 EUR
View
Most Expensive
NZ Jewellers
af40f1d1-938f-4390-8250-a7638881247b · Sep 25
€4,702 EUR
$5,250 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from €1,570 EURSave up to €2,050 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
€1,570 EUR