Oval|Natural|IGI

0.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815656298

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815656298

Diamond specifications and retailer prices

From €341 EUR
As of November 5, 2026
Save €1,098 EUR (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,439 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815656298. Listed at 15 retailers as of November 5, 2026, with prices from €341 to €1,439, a €1,098 spread on the same certified stone. NZ Jewellers lists it at €1,439. 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

0.51
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.5°
Pavilion angle35.6°
OriginNatural
Grading LabIGI
CertificateIGI 815656298
Dimensions6.30 × 4.40 × 2.75 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
6.30 mm4.40 mm0.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815656298
Side View
Table 58.0%Crown 39.5°Girdle: MED-THKPavilion 35.6°Culet: NoneDepth 62.5%

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 5
Current: €1,439 EUR|Low: €341 EUR|High: €1,471 EUR|Avg: €564 EUR|-2.1%
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
November 6, 2026
Retailer 11€341 EUR
Retailer 7€349 EUR
Retailer 12€375 EUR
Retailer 13€405 EUR
Retailer 6€408 EUR
Retailer 10€433 EUR
Retailer 9€435 EUR
Retailer 3€439 EUR
Retailer 2€458 EUR
Retailer 5€519 EUR
Retailer 14€579 EUR
Retailer 15€583 EUR
Retailer 8€605 EUR
Retailer 4€869 EUR
NZ Jewellers€1,439 EUR

18 data points across 15 retailers

15 retailers€341 EUR to €1,439 EUR

A
Cheapest Retailer
-
€341 EUR
Retailer 2
-
€349 EUR
View
Price last confirmed 9 days ago
A
Retailer 3
-
€375 EUR
View
A
Retailer 4
-
€405 EUR
View
Retailer 5
-
€408 EUR
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€433 EUR
View
B+
Retailer 7
-
€435 EUR
View
B+
Retailer 8
-
€439 EUR
View
B+
Retailer 9
-
€458 EUR
View
B+
Retailer 10
-
€519 EUR
View
B
Retailer 11
-
€579 EUR
View
B
Retailer 12
-
€583 EUR
View
B
Retailer 13
-
€605 EUR
View
B
Retailer 14
-
€869 EUR
View
Most Expensive
C
NZ Jewellers
d3d89fb4-5f5c-4fd9-8d0d-1a0c11664320 · Nov 5
€1,439 EUR
$1,607 USD
View
14 more retailers have this diamond
Prices start from €341 EURSave up to €1,098 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
0.51ct Oval
€341 EUR