CaratHunter
Plans
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
HK$13,700 HKD
As of November 2, 2026
Save €2,021 EUR (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,699 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 1, 2026, with a 129% 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
Color
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 2
Current: €1,570 EUR|Low: €1,547 EUR|High: €3,892 EUR|Avg: €2,205 EUR|-4.2%
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
Retailer 15
November 2, 2026
Retailer 1€1,570 EUR
Retailer 14€1,664 EUR
Retailer 10€1,695 EUR
Retailer 8€1,736 EUR
Retailer 2€1,750 EUR
Retailer 13€1,814 EUR
Retailer 4€1,877 EUR
Retailer 6€1,885 EUR
Retailer 11€1,907 EUR
Retailer 9€2,064 EUR
Retailer 3€2,174 EUR
Retailer 15€2,601 EUR
Retailer 7€2,702 EUR
Retailer 5€3,241 EUR
Retailer 12€3,591 EUR

26 data points across 15 retailers

17 retailers€1,570 EUR to €3,591 EUR

A
Cheapest Retailer
-
€1,570 EUR
HK$13,700 HKD
A
Retailer 2
-
€1,664 EUR
$1,859 USD
View
A
Retailer 3
-
€1,695 EUR
$1,894 USD
View
A
Retailer 4
-
€1,736 EUR
$1,939 USD
View
Final sale: no returns
A
Retailer 5
-
€1,750 EUR
$1,955 USD
View
A
Retailer 6
-
€1,814 EUR
View
A
Retailer 7
-
€1,877 EUR
$2,097 USD
View
A
Retailer 8
-
€1,885 EUR
$2,106 USD
View
A
Retailer 9
-
€1,907 EUR
$2,130 USD
View
B+
Retailer 10
-
€2,064 EUR
£1,816 GBP
View
B+
Retailer 11
-
€2,174 EUR
$2,429 USD
View
B+
Retailer 12
-
€2,361 EUR
A$4,058 AUD
View
B+
Retailer 13
-
€2,601 EUR
ZAR 46,940 ZAR
View
Retailer 14
-
€2,702 EUR
A$4,645 AUD
View
Price last confirmed 25 days ago
Retailer 15
-
€3,241 EUR
$3,620 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
€3,591 EUR
£3,159 GBP
View
Most Expensive
NZ Jewellers
af40f1d1-938f-4390-8250-a7638881247b · Sep 25
€4,699 EUR
$5,250 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from €1,570 EURSave up to €2,021 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