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Radiant|Natural|GIA

1.21ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 5553821034

Certificate GIA 5553821034

Diamond specifications and retailer prices

From €2,320 EUR
As of November 4, 2026
Save €2,414 EUR (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,734 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553821034. Listed at 13 retailers as of November 4, 2026, with prices from €2,320 to €4,734, a €2,414 spread on the same certified stone. NZ Jewellers lists it at €4,734. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553821034
Dimensions6.98 × 5.30 × 3.63 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.98 mm5.30 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553821034
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

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 4
Current: €4,734 EUR|Low: €2,320 EUR|High: €4,770 EUR|Avg: €3,046 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
November 7, 2026
Retailer 4€2,320 EUR
Retailer 13€2,433 EUR
Retailer 5€2,508 EUR
Retailer 8€2,672 EUR
Retailer 10€2,717 EUR
Retailer 12€2,717 EUR
Retailer 6€2,821 EUR
Retailer 7€2,876 EUR
Retailer 3€2,974 EUR
Retailer 9€2,980 EUR
Retailer 11€3,135 EUR
Retailer 2€4,519 EUR
NZ Jewellers€4,734 EUR

29 data points across 13 retailers

13 retailers€2,320 EUR to €4,734 EUR

A
Cheapest Retailer
-
€2,320 EUR
B+
Retailer 2
-
€2,433 EUR
View
B+
Retailer 3
-
€2,508 EUR
View
Final sale: no returns
B+
Retailer 4
-
€2,672 EUR
View
Retailer 5
-
€2,717 EUR
View
Price last confirmed 9 days ago
B+
Retailer 6
-
€2,717 EUR
View
B+
Retailer 7
-
€2,821 EUR
View
B+
Retailer 8
-
€2,876 EUR
View
B
Retailer 9
-
€2,974 EUR
View
B+
Retailer 10
-
€2,980 EUR
View
B+
Retailer 11
-
€3,135 EUR
View
Retailer 12
-
€4,519 EUR
View
Most Expensive
B
NZ Jewellers
b4174110-3705-4efe-92d9-c6361fdc8e45 · Nov 5
€4,734 EUR
$5,285 USD
View
12 more retailers have this diamond
Prices start from €2,320 EURSave up to €2,414 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
€2,320 EUR