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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6565200380

Certificate GIA 6565200380

Diamond specifications and retailer prices

From €1,696 EUR
As of November 6, 2026
Save €3,021 EUR (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €4,717 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565200380. Listed at 21 retailers as of November 5, 2026, with prices from €1,696 to €4,717, a €3,021 spread on the same certified stone. NZ Jewellers lists it at €4,717. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565200380
Dimensions6.76 × 6.82 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.76 mm6.82 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565200380
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
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: €4,717 EUR|Low: €1,696 EUR|High: €4,717 EUR|Avg: €2,595 EUR
NZ Jewellers
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 7, 2026
Retailer 15€1,696 EUR
Retailer 8€1,765 EUR
Retailer 11€1,798 EUR
Retailer 14€2,051 EUR
Retailer 3€2,100 EUR
Retailer 9€2,129 EUR
Retailer 4€2,256 EUR
Retailer 6€2,256 EUR
Retailer 5€2,361 EUR
Retailer 2€2,373 EUR
Retailer 7€2,604 EUR
Retailer 10€2,754 EUR
Retailer 12€2,799 EUR
Retailer 13€3,942 EUR
NZ Jewellers€4,717 EUR

24 data points across 15 retailers

21 retailers€1,696 EUR to €4,717 EUR

A
Cheapest Retailer
-
€1,696 EUR
A
Retailer 2
-
€1,765 EUR
View
A
Retailer 3
-
€1,798 EUR
View
B+
Retailer 4
-
€2,051 EUR
View
B+
Retailer 5
-
€2,100 EUR
View
B+
Retailer 6
-
€2,100 EUR
View
B+
Retailer 7
-
€2,117 EUR
View
B+
Retailer 8
-
€2,129 EUR
View
Retailer 9
-
€2,256 EUR
View
Price last confirmed 9 days ago
B+
Retailer 10
-
€2,256 EUR
View
B+
Retailer 11
-
€2,320 EUR
View
B+
Retailer 12
-
€2,358 EUR
View
B+
Retailer 13
-
€2,361 EUR
View
B+
Retailer 14
-
€2,373 EUR
View
B+
Retailer 15
-
€2,382 EUR
View
Retailer 16
-
€2,528 EUR
View
Price last confirmed 31 days ago
B
Retailer 17
-
€2,604 EUR
View
B+
Retailer 18
-
€2,754 EUR
View
B+
Retailer 19
-
€2,799 EUR
View
B
Retailer 20
-
€3,942 EUR
View
Most Expensive
B
NZ Jewellers
3949d498-801d-49b3-ac99-dac1d4bfa867 · Nov 5
€4,717 EUR
$5,267 USD
View
20 more retailers have this diamond
Prices start from €1,696 EURSave up to €3,021 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 Round
€1,696 EUR