Radiant|Natural|IGI

1.51ct K SI1 Radiant Natural Diamond

VG • K/SI1 • IGI 805628261

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 805628261

Diamond specifications and retailer prices

From €2,424 EUR
As of November 6, 2026
Save €2,621 EUR (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €5,044 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 805628261. Listed at 12 retailers as of November 5, 2026, with prices from €2,424 to €5,044, a €2,621 spread on the same certified stone. NZ Jewellers lists it at €5,044. 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

1.51
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle30.1°
OriginNatural
Grading LabIGI
CertificateIGI 805628261
Dimensions7.88 × 5.52 × 3.83 mm
L/W Ratio1.43
Top View
7.88 mm5.52 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 805628261
Side View
Table 69.0%Crown 37.2°Girdle: STK-THKPavilion 30.1°CuletDepth 69.4%

Caratlytics Score

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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: €5,044 EUR|Low: €2,424 EUR|High: €5,044 EUR|Avg: €3,331 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3€2,424 EUR
Retailer 2€2,786 EUR
Retailer 4€2,809 EUR
Retailer 8€2,896 EUR
Retailer 10€3,007 EUR
Retailer 6€3,341 EUR
Retailer 5€3,528 EUR
Retailer 7€3,534 EUR
Retailer 9€4,829 EUR
NZ Jewellers€5,044 EUR

40 data points across 10 retailers

12 retailers€2,424 EUR to €5,044 EUR

A
Cheapest Retailer
-
€2,424 EUR
B+
Retailer 2
-
€2,786 EUR
View
B+
Retailer 3
-
€2,809 EUR
View
B+
Retailer 4
-
€2,889 EUR
View
B+
Retailer 5
-
€2,896 EUR
View
B+
Retailer 6
-
€3,007 EUR
View
B+
Retailer 7
-
€3,024 EUR
View
B+
Retailer 8
-
€3,341 EUR
View
B+
Retailer 9
-
€3,528 EUR
View
B+
Retailer 10
-
€3,534 EUR
View
B
Retailer 11
-
€4,829 EUR
View
Most Expensive
B
NZ Jewellers
d03f0501-cf4a-4061-9fb1-4c34e4e16201 · Nov 5
€5,044 EUR
$5,632 USD
View
11 more retailers have this diamond
Prices start from €2,424 EURSave up to €2,621 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
1.51ct Radiant
€2,424 EUR