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Radiant|Natural|GIA

1.00ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 6555313081

Certificate GIA 6555313081

Diamond specifications and retailer prices

From €1,308 EUR
As of November 6, 2026
Save €1,171 EUR (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,418 EUR at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct 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 6555313081. Listed at 11 retailers as of November 2, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555313081
Dimensions6.71 × 4.99 × 3.33 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Feather, Indented Natural, Cavity, Crystal, Needle, Natural
Top View
6.71 mm4.99 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555313081
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.7%

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 6
Current: €1,391 EUR|Low: €976 EUR|High: €2,492 EUR|Avg: €1,561 EUR|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9€1,172 EUR
Retailer 10€1,188 EUR
Retailer 11€1,308 EUR
Retailer 1€1,391 EUR
Retailer 2€1,477 EUR
Retailer 6€1,523 EUR
Retailer 7€1,523 EUR
Retailer 8€1,567 EUR
Retailer 3€1,654 EUR
Retailer 4€1,921 EUR
Retailer 5€2,478 EUR

31 data points across 11 retailers

11 retailers€1,308 EUR to €2,478 EUR

Retailer 1
-
€1,269 EUR
Price last confirmed 34 days ago
A
Retailer 2
-
€1,308 EUR
View
Retailer 3
-
€1,328 EUR
View
Price last confirmed 38 days ago
A
Retailer 4
-
€1,391 EUR
View
Retailer 5
-
€1,464 EUR
View
Price last confirmed 34 days ago
A
Retailer 6
-
€1,523 EUR
View
A
Retailer 7
-
€1,523 EUR
View
A
Retailer 8
-
€1,567 EUR
View
B+
Retailer 9
-
€1,921 EUR
View
B
Retailer 10
-
€2,478 EUR
View
Most Expensive
NZ Jewellers
5c194249-dc4c-4bee-90bd-39920ba8d63a · Oct 3
€3,418 EUR
$3,816 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from €1,308 EURSave up to €1,171 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
1.00ct Radiant
€1,308 EUR