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Oval|Natural|IGI

0.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815673855

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815673855

Diamond specifications and retailer prices

From €289 EUR
As of November 7, 2026
Save €1,208 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,498 EUR at NZ Jewellers · As of November 7, 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 815673855. Listed at 15 retailers as of November 7, 2026, with prices from €289 to €1,498, a €1,208 spread on the same certified stone. NZ Jewellers lists it at €1,498. 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
SymmetryVery Good
FluorescenceNone
Crown angle30.7°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 815673855
Dimensions6.30 × 4.62 × 2.77 mm
L/W Ratio1.36
Girdle conditionFaceted
Top View
6.30 mm4.62 mm0.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 815673855
Side View
Table 60.0%Crown 30.7°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 60.0%

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: Nov 7
Current: €1,498 EUR|Low: €289 EUR|High: €1,498 EUR|Avg: €568 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
November 7, 2026
Retailer 2€289 EUR
Retailer 4€391 EUR
Retailer 3€421 EUR
Retailer 13€421 EUR
Retailer 5€451 EUR
Retailer 6€455 EUR
Retailer 7€479 EUR
Retailer 9€498 EUR
Retailer 8€578 EUR
Retailer 12€605 EUR
Retailer 11€638 EUR
Retailer 10€897 EUR
NZ Jewellers€1,498 EUR

26 data points across 13 retailers

15 retailers€289 EUR to €1,498 EUR

A
Cheapest Retailer
-
€289 EUR
B+
Retailer 2
-
€391 EUR
View
B+
Retailer 3
-
€421 EUR
View
B+
Retailer 4
-
€421 EUR
View
B+
Retailer 5
-
€451 EUR
View
B+
Retailer 6
-
€455 EUR
View
B+
Retailer 7
-
€479 EUR
View
B+
Retailer 8
-
€498 EUR
View
B+
Retailer 9
-
€508 EUR
View
B
Retailer 10
-
€542 EUR
View
B
Retailer 11
-
€578 EUR
View
B
Retailer 12
-
€605 EUR
View
B
Retailer 13
-
€638 EUR
View
B
Retailer 14
-
€897 EUR
View
Most Expensive
C
NZ Jewellers
f006e734-a583-408a-b002-81a75b2f699f · Nov 7
€1,498 EUR
$1,672 USD
View
14 more retailers have this diamond
Prices start from €289 EURSave up to €1,208 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
€289 EUR