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Round|Natural|IGI

1.51ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 754512197

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512197

Diamond specifications and retailer prices

From €1,827 EUR
As of November 6, 2026
Save €2,911 EUR (61%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,738 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round 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 754512197. Listed at 20 retailers as of November 5, 2026, with prices from €1,827 to €4,738, a €2,911 spread on the same certified stone. NZ Jewellers lists it at €4,738. 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
SymmetryVery Good
FluorescenceNone
Crown angle38.7°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 754512197
Dimensions7.09 × 7.13 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.09 mm7.13 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 754512197
Side View
Table 57.0%Crown 38.7°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.8%

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: €4,738 EUR|Low: €1,827 EUR|High: €4,738 EUR|Avg: €2,625 EUR
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2€1,827 EUR
Retailer 19€1,956 EUR
Retailer 10€2,047 EUR
Retailer 3€2,049 EUR
Retailer 17€2,060 EUR
Retailer 5€2,267 EUR
Retailer 7€2,267 EUR
Retailer 8€2,322 EUR
Retailer 6€2,371 EUR
Retailer 4€2,391 EUR
Retailer 14€2,427 EUR
Retailer 13€2,468 EUR
Retailer 9€2,551 EUR
Retailer 11€2,615 EUR
Retailer 15€2,659 EUR
Retailer 16€2,766 EUR
Retailer 18€2,812 EUR
Retailer 12€3,486 EUR
Retailer 20€3,970 EUR
NZ Jewellers€4,738 EUR

23 data points across 20 retailers

20 retailers€1,827 EUR to €4,738 EUR

A
Cheapest Retailer
-
€1,827 EUR
A
Retailer 2
-
€1,956 EUR
View
B+
Retailer 3
-
€2,047 EUR
View
A
Retailer 4
-
€2,049 EUR
View
A
Retailer 5
-
€2,060 EUR
View
B+
Retailer 6
-
€2,267 EUR
View
Retailer 7
-
€2,267 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€2,322 EUR
View
B+
Retailer 9
-
€2,371 EUR
View
B+
Retailer 10
-
€2,391 EUR
View
B+
Retailer 11
-
€2,427 EUR
View
B+
Retailer 12
-
€2,468 EUR
View
B+
Retailer 13
-
€2,551 EUR
View
B+
Retailer 14
-
€2,615 EUR
View
B+
Retailer 15
-
€2,659 EUR
View
B+
Retailer 16
-
€2,766 EUR
View
B+
Retailer 17
-
€2,812 EUR
View
B+
Retailer 18
-
€3,486 EUR
View
B+
Retailer 19
-
€3,970 EUR
View
Most Expensive
B
NZ Jewellers
bbce782d-a238-4417-9b66-8eb95b477819 · Nov 5
€4,738 EUR
$5,318 USD
View
19 more retailers have this diamond
Prices start from €1,827 EURSave up to €2,911 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 Round
€1,827 EUR