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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 €1,833 EUR
HK$16,000 HKD
As of October 30, 2026
Save €850 EUR (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €2,683 EUR at Blue Nile · As of October 29, 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 October 29, 2026, with prices from €1,833 to €2,683, a €850 spread on the same certified stone. Blue Nile lists it at €2,683. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €2,683 EUR|Low: €1,833 EUR|High: €3,124 EUR|Avg: €2,435 EUR|-0.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 14, 2026
Retailer 2€1,833 EUR
Retailer 3€2,190 EUR
Retailer 5€2,248 EUR
Retailer 6€2,319 EUR
Retailer 4€2,577 EUR
Blue Nile€2,683 EUR
Retailer 7€3,124 EUR

8 data points across 7 retailers

6 retailers€1,833 EUR to €2,683 EUR

A
Cheapest Retailer
-
€1,833 EUR
HK$16,000 HKD
A
Retailer 2
-
€2,190 EUR
SGD 3,307 SGD
View
A
Retailer 3
-
€2,248 EUR
$2,512 USD
View
A
Retailer 4
-
€2,319 EUR
$2,591 USD
View
Final sale: no returns
A
Retailer 5
-
€2,577 EUR
SGD 3,890 SGD
View
Most Expensive
A
Blue Nile
24877786 · Oct 29
€2,683 EUR
$2,998 USD
View
5 more retailers have this diamond
Prices start from €1,833 EURSave up to €850 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
€1,833 EUR