Radiant|Natural|GIA

1.31ct K SI1 Radiant Natural Diamond

ID • K/SI1 • GIA 11

Certificate GIA 11

Diamond specifications and retailer prices

From €2,174 EUR
As of November 4, 2026
Save €2,765 EUR (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,939 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 8 retailers as of November 4, 2026, with prices from €2,174 to €4,939, a €2,765 spread on the same certified stone. NZ Jewellers lists it at €4,939. 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

1.31
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11
Dimensions7.33 × 5.49 × 3.75 mm
L/W Ratio1.34
Top View
7.33 mm5.49 mm1.31 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 11
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €4,939 EUR|Low: €2,174 EUR|High: €4,939 EUR|Avg: €2,884 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 30, 2026
Retailer 8€2,174 EUR
Retailer 4€2,237 EUR
Retailer 5€2,568 EUR
Retailer 6€2,568 EUR
Retailer 2€2,667 EUR
Retailer 3€2,776 EUR
Retailer 7€2,963 EUR
NZ Jewellers€4,939 EUR

3 data points across 8 retailers

8 retailers€2,174 EUR to €4,939 EUR

A
Cheapest Retailer
-
€2,174 EUR
A
Retailer 2
-
€2,237 EUR
View
Retailer 3
-
€2,568 EUR
View
Price last confirmed 9 days ago
A
Retailer 4
-
€2,568 EUR
View
A
Retailer 5
-
€2,667 EUR
View
B+
Retailer 6
-
€2,776 EUR
View
B+
Retailer 7
-
€2,963 EUR
View
Most Expensive
B
NZ Jewellers
cb41615b-a6f8-4181-bfe7-05febe830fb7 · Nov 5
€4,939 EUR
$5,514 USD
View
7 more retailers have this diamond
Prices start from €2,174 EURSave up to €2,765 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
1.31ct Radiant
€2,174 EUR