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Oval|Natural|IGI

0.51ct J SI1 Oval Natural Diamond

VG • J/SI1 • IGI 815673862

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815673862

Diamond specifications and retailer prices

From €300 EUR
As of November 6, 2026
Save €630 EUR (68%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €930 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673862. Listed at 5 retailers as of November 1, 2026, with prices from €300 to €930, a €630 spread on the same certified stone. MOH London lists it at €930. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.8°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 815673862
Dimensions6.33 × 4.35 × 2.85 mm
L/W Ratio1.46
Girdle conditionFaceted
Top View
6.33 mm4.35 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815673862
Side View
Table 58.0%Crown 40.8°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 65.5%

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 6
Current: €930 EUR|Low: €300 EUR|High: €984 EUR|Avg: €581 EUR|-4.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2€300 EUR
Retailer 3€515 EUR
Retailer 5€554 EUR
Retailer 4€588 EUR
MOH London€930 EUR

45 data points across 5 retailers

5 retailers€300 EUR to €930 EUR

A
Cheapest Retailer
-
€300 EUR
B+
Retailer 2
-
€515 EUR
View
B
Retailer 3
-
€554 EUR
View
B
Retailer 4
-
€588 EUR
View
Most Expensive
B
MOH London
F7374746B · Nov 1
€930 EUR
£818 GBP
View
4 more retailers have this diamond
Prices start from €300 EURSave up to €630 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
€300 EUR