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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7541433747

Certificate GIA 7541433747

Diamond specifications and retailer prices

From €1,755 EUR
As of November 5, 2026
Save €2,267 EUR (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,022 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 7541433747. Listed at 11 retailers as of November 5, 2026, with prices from €1,755 to €4,022, a €2,267 spread on the same certified stone. NZ Jewellers lists it at €4,022. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7541433747
Dimensions6.80 × 6.76 × 4.22 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.80 mm6.76 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541433747
Side View
Table 59.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.3%

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 5
Current: €4,022 EUR|Low: €1,627 EUR|High: €4,665 EUR|Avg: €2,501 EUR|-13.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10€1,755 EUR
Retailer 7€1,775 EUR
Retailer 2€1,816 EUR
Retailer 3€1,924 EUR
Retailer 8€2,013 EUR
Retailer 4€2,212 EUR
Retailer 9€2,219 EUR
Retailer 5€2,606 EUR
Retailer 6€3,361 EUR
Retailer 11€3,487 EUR
NZ Jewellers€4,022 EUR

43 data points across 11 retailers

11 retailers€1,755 EUR to €4,022 EUR

A
Cheapest Retailer
-
€1,755 EUR
A
Retailer 2
-
€1,775 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,816 EUR
View
B+
Retailer 4
-
€1,924 EUR
View
B+
Retailer 5
-
€2,013 EUR
View
B+
Retailer 6
-
€2,212 EUR
View
B+
Retailer 7
-
€2,219 EUR
View
B
Retailer 8
-
€2,606 EUR
View
B
Retailer 9
-
€3,361 EUR
View
B
Retailer 10
-
€3,487 EUR
View
Most Expensive
B
NZ Jewellers
8dbac2f0-1cc8-43ae-bf97-1e4325459bfa · Nov 5
€4,022 EUR
$4,490 USD
View
10 more retailers have this diamond
Prices start from €1,755 EURSave up to €2,267 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
€1,755 EUR