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Oval|Lab Grown|IGI

4.20ct H SI1 Oval Lab Grown Diamond

VG • H/SI1 • IGI LG570358328

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG570358328

Diamond specifications and retailer prices

From €1,194 EUR
$1,334 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €1,194 EUR at Adiamor
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Adiamor

About this 4.2ct lab-grown oval diamond

This 4.2ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG570358328 or 570358328. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.20
Carat
H
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570358328
Dimensions13.35 × 8.99 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.35 mm8.99 mm4.20 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570358328
Side View
Table 61.5%Crown 35°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €1,194 EUR|Low: €1,194 EUR|High: €2,265 EUR|Avg: €1,974 EUR|-45.3%
July 28, 2026
Adiamor€1,194 EUR

4 data points across 1 retailer

1 retailer

B+
Adiamor
D-61404334 · Oct 31
€1,194 EUR
$1,334 USD
View

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B+
4.20ct Oval
€1,194 EUR