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Radiant|Natural|GIA

1.00ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1423827962

Certificate GIA 1423827962

Diamond specifications and retailer prices

From €1,238 EUR
As of November 6, 2026
Save €2,734 EUR (69%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €3,972 EUR at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1423827962. Listed at 28 retailers as of November 5, 2026, with prices from €1,238 to €3,972, a €2,734 spread on the same certified stone. NZ Jewellers lists it at €3,972. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1423827962
Dimensions6.14 × 5.01 × 3.44 mm
L/W Ratio1.23
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
6.14 mm5.01 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1423827962
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.7%

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: €1,807 EUR|Low: €1,238 EUR|High: €2,888 EUR|Avg: €1,841 EUR|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 8€1,238 EUR
Retailer 10€1,312 EUR
Retailer 7€1,375 EUR
Retailer 2€1,545 EUR
Retailer 3€1,580 EUR
Retailer 1€1,807 EUR
Retailer 9€1,870 EUR
Retailer 5€1,987 EUR
Retailer 4€2,212 EUR
Retailer 6€2,846 EUR

33 data points across 10 retailers

28 retailers€1,238 EUR to €3,972 EUR

B+
Cheapest Retailer
-
€1,238 EUR
A
Retailer 2
-
€1,312 EUR
View
Retailer 3
-
€1,317 EUR
View
Price last confirmed 10 days ago
B+
Retailer 4
-
€1,348 EUR
View
B+
Retailer 5
-
€1,352 EUR
View
Final sale: no returns
B+
Retailer 6
-
€1,375 EUR
View
B+
Retailer 7
-
€1,405 EUR
View
B+
Retailer 8
-
€1,423 EUR
View
B+
Retailer 9
-
€1,458 EUR
View
Retailer 10
-
€1,475 EUR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
€1,475 EUR
View
B+
Retailer 12
-
€1,543 EUR
View
B+
Retailer 13
-
€1,545 EUR
View
B+
Retailer 14
-
€1,580 EUR
View
B+
Retailer 15
-
€1,635 EUR
View
B+
Retailer 16
-
€1,703 EUR
View
B+
Retailer 17
-
€1,738 EUR
View
B+
Retailer 18
-
€1,738 EUR
View
B+
Retailer 19
-
€1,791 EUR
View
B+
Retailer 20
-
€1,807 EUR
View
B+
Retailer 21
-
€1,870 EUR
View
B+
Retailer 22
-
€1,953 EUR
View
B+
Retailer 23
-
€1,987 EUR
View
Retailer 24
-
€2,125 EUR
View
Price last confirmed 33 days ago
B
Retailer 25
-
€2,212 EUR
View
B
Retailer 26
-
€2,332 EUR
View
B
Retailer 27
-
€2,846 EUR
View
Most Expensive
C
NZ Jewellers
a5a2f86b-393c-4802-b9f6-c6f23ea67717 · Nov 5
€3,972 EUR
$4,435 USD
View
27 more retailers have this diamond
Prices start from €1,238 EURSave up to €2,734 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
€1,238 EUR