CaratHunter
Plans
Radiant|Natural|GIA

1.21ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2558167281

Certificate GIA 2558167281

Diamond specifications and retailer prices

From €1,545 EUR
£1,360 GBP
As of October 30, 2026
Save €2,337 EUR (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €3,883 EUR at NZ Jewellers · As of October 30, 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 I 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 2558167281. Listed at 8 retailers as of October 30, 2026, with prices from €1,545 to €3,883, a €2,337 spread on the same certified stone. NZ Jewellers lists it at €3,883. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle54.67°
Pavilion angle36.44°
OriginNatural
Grading LabGIA
CertificateGIA 2558167281
Dimensions6.91 × 5.37 × 3.66 mm
L/W Ratio1.29
Top View
6.91 mm5.37 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2558167281
Side View
Table 71.0%Crown 54.67°Girdle: THK-VTKPavilion 36.44°Culet: NoneDepth 68.1%

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: Oct 30
Current: €3,883 EUR|Low: €1,473 EUR|High: €3,903 EUR|Avg: €2,103 EUR|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3€1,545 EUR
Retailer 2€1,579 EUR
Retailer 6€1,592 EUR
Retailer 8€1,620 EUR
Retailer 5€1,666 EUR
Retailer 7€1,708 EUR
Retailer 4€2,804 EUR
NZ Jewellers€3,883 EUR

40 data points across 8 retailers

8 retailers€1,545 EUR to €3,883 EUR

A
Cheapest Retailer
-
€1,545 EUR
£1,360 GBP
A
Retailer 2
-
€1,579 EUR
£1,389 GBP
View
A
Retailer 3
-
€1,592 EUR
$1,779 USD
View
Retailer 4
-
€1,620 EUR
$1,810 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
€1,666 EUR
$1,861 USD
View
A
Retailer 6
-
€1,708 EUR
$1,908 USD
View
B+
Retailer 7
-
€2,804 EUR
£2,467 GBP
View
Most Expensive
B
NZ Jewellers
3c79699f-d26b-4fe2-bbdd-c507cc815fd3 · Oct 30
€3,883 EUR
$4,338 USD
View
7 more retailers have this diamond
Prices start from €1,545 EURSave up to €2,337 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
€1,545 EUR