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Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2556361020

Certificate GIA 2556361020

Diamond specifications and retailer prices

From €2,602 EUR
As of November 6, 2026
Save €3,395 EUR (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,996 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556361020. Listed at 24 retailers as of November 5, 2026, with prices from €2,602 to €5,996, a €3,395 spread on the same certified stone. NZ Jewellers lists it at €5,996. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556361020
Dimensions7.05 × 5.43 × 3.73 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.05 mm5.43 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556361020
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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: €5,996 EUR|Low: €2,580 EUR|High: €6,234 EUR|Avg: €3,815 EUR|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 3€2,602 EUR
Retailer 16€2,697 EUR
Retailer 12€3,091 EUR
Retailer 7€3,103 EUR
Retailer 10€3,176 EUR
Retailer 21€3,240 EUR
Retailer 18€3,273 EUR
Retailer 2€3,309 EUR
Retailer 17€3,338 EUR
Retailer 6€3,442 EUR
Retailer 11€3,442 EUR
Retailer 13€3,486 EUR
Retailer 5€3,573 EUR
Retailer 9€3,574 EUR
Retailer 14€3,677 EUR
Retailer 8€3,971 EUR
Retailer 15€3,971 EUR
Retailer 19€4,006 EUR
Retailer 20€4,201 EUR
Retailer 22€5,756 EUR
Retailer 4€5,926 EUR
NZ Jewellers€5,996 EUR

21 data points across 22 retailers

24 retailers€2,602 EUR to €5,996 EUR

A
Cheapest Retailer
-
€2,602 EUR
A
Retailer 2
-
€2,697 EUR
View
B+
Retailer 3
-
€3,091 EUR
View
B+
Retailer 4
-
€3,103 EUR
View
B+
Retailer 5
-
€3,176 EUR
View
Final sale: no returns
B+
Retailer 6
-
€3,240 EUR
View
B+
Retailer 7
-
€3,273 EUR
View
B+
Retailer 8
-
€3,309 EUR
View
B+
Retailer 9
-
€3,338 EUR
View
B+
Retailer 10
-
€3,380 EUR
View
Retailer 11
-
€3,442 EUR
View
Price last confirmed 9 days ago
B+
Retailer 12
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€3,442 EUR
View
B+
Retailer 13
-
€3,486 EUR
View
B+
Retailer 14
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€3,567 EUR
View
B+
Retailer 15
-
€3,573 EUR
View
B+
Retailer 16
-
€3,574 EUR
View
B+
Retailer 17
-
€3,677 EUR
View
Retailer 18
-
€3,945 EUR
View
Price last confirmed 34 days ago
B+
Retailer 19
-
€3,971 EUR
View
B+
Retailer 20
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€4,006 EUR
View
B+
Retailer 21
-
€4,201 EUR
View
B
Retailer 22
-
€5,756 EUR
View
Retailer 23
-
€5,926 EUR
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
85eed898-47ab-4f27-9696-efb97d0955f7 · Nov 5
€5,996 EUR
$6,695 USD
View
23 more retailers have this diamond
Prices start from €2,602 EURSave up to €3,395 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 Radiant
€2,602 EUR