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Round|Natural|GIA

1.00ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2447974240

Certificate GIA 2447974240

Diamond specifications and retailer prices

From €1,300 EUR
As of November 6, 2026
Save €1,755 EUR (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,265 EUR at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2447974240. Listed at 18 retailers as of November 4, 2026, with a 135% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2447974240
Dimensions6.54 × 6.51 × 3.91 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.54 mm6.51 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2447974240
Side View
Table 60.0%Crown 31.5°Girdle: THN-NULPavilion 41.6°Culet: NoneDepth 59.9%

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: €4,265 EUR|Low: €1,288 EUR|High: €4,286 EUR|Avg: €2,025 EUR|-0.5%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 13€1,300 EUR
Retailer 8€1,533 EUR
Retailer 14€1,579 EUR
Retailer 5€1,614 EUR
Retailer 2€1,650 EUR
Retailer 4€1,749 EUR
Retailer 15€1,749 EUR
Retailer 7€1,802 EUR
Retailer 16€1,829 EUR
Retailer 3€1,871 EUR
Retailer 9€1,876 EUR
Retailer 6€2,018 EUR
Retailer 10€2,019 EUR
Retailer 11€2,370 EUR
Retailer 12€3,055 EUR
NZ Jewellers€4,265 EUR

27 data points across 16 retailers

18 retailers€1,300 EUR to €3,055 EUR

A
Cheapest Retailer
-
€1,300 EUR
A
Retailer 2
-
€1,533 EUR
View
A
Retailer 3
-
€1,579 EUR
View
Retailer 4
-
€1,591 EUR
View
Price last confirmed 82 days ago
A
Retailer 5
-
€1,614 EUR
View
Final sale: no returns
A
Retailer 6
-
€1,650 EUR
View
Retailer 7
-
€1,749 EUR
View
Price last confirmed 11 days ago
Retailer 8
-
€1,749 EUR
View
Price last confirmed 12 days ago
A
Retailer 9
-
€1,753 EUR
View
A
Retailer 10
-
€1,802 EUR
View
Retailer 11
-
€1,829 EUR
View
Price last confirmed 12 days ago
A
Retailer 12
-
€1,871 EUR
View
A
Retailer 13
-
€1,876 EUR
View
Retailer 14
-
€2,018 EUR
View
Price last confirmed 10 days ago
A
Retailer 15
-
€2,019 EUR
View
B+
Retailer 16
-
€2,370 EUR
View
B+
Retailer 17
-
€3,055 EUR
View
Most Expensive
NZ Jewellers
a1e2d04e-eca9-40e4-84d3-f1cc22c453cf · Oct 27
€4,265 EUR
$4,787 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from €1,300 EURSave up to €1,755 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 Round
€1,300 EUR