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Radiant|Natural|GIA

1.30ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 2517871823

Certificate GIA 2517871823

Diamond specifications and retailer prices

From €1,857 EUR
As of November 6, 2026
Save €828 EUR (31%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €2,685 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 2517871823. Listed at 6 retailers as of November 5, 2026, with prices from €1,857 to €2,685, a €828 spread on the same certified stone. Blue Nile lists it at €2,685. 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

1.30
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517871823
Dimensions7.49 × 5.43 × 3.71 mm
L/W Ratio1.38
Top View
7.49 mm5.43 mm1.30 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2517871823
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.3%

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: €2,685 EUR|Low: €1,834 EUR|High: €3,126 EUR|Avg: €2,435 EUR|-0.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3€1,857 EUR
Retailer 2€2,203 EUR
Retailer 5€2,250 EUR
Retailer 6€2,321 EUR
Retailer 4€2,578 EUR
Blue Nile€2,685 EUR
Retailer 7€3,126 EUR

11 data points across 7 retailers

6 retailers€1,857 EUR to €2,685 EUR

A
Cheapest Retailer
-
€1,857 EUR
A
Retailer 2
-
€2,203 EUR
View
A
Retailer 3
-
€2,250 EUR
View
A
Retailer 4
-
€2,321 EUR
View
Final sale: no returns
A
Retailer 5
-
€2,578 EUR
View
Most Expensive
A
Blue Nile
24877786 · Nov 5
€2,685 EUR
$2,998 USD
View
5 more retailers have this diamond
Prices start from €1,857 EURSave up to €828 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
1.30ct Radiant
€1,857 EUR