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Oval|Lab Grown|IGI

5.20ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG559202120

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG559202120

Diamond specifications and retailer prices

From €493 EUR
$551 USD
As of October 29, 2026
Save €2,956 EUR (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,450 EUR at Adiamor · As of October 31, 2026
View at Adiamor

About this 5.2ct lab-grown oval diamond

This 5.2ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559202120 or 559202120. Listed at 13 retailers as of October 29, 2026, with prices from €493 to €3,450, a €2,956 spread on the same certified stone. Adiamor lists it at €3,450. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.20
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559202120
Dimensions13.91 × 9.79 × 6.18 mm
L/W Ratio1.42
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
13.91 mm9.79 mm5.20 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559202120
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

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: Oct 29
Current: €3,450 EUR|Low: €493 EUR|High: €6,830 EUR|Avg: €2,149 EUR
Adiamor
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
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Retailer 17
Retailer 18
November 1, 2026
Retailer 13€493 EUR
Retailer 5€552 EUR
Retailer 16€611 EUR
Retailer 12€652 EUR
Retailer 18€687 EUR
Retailer 14€729 EUR
Retailer 3€944 EUR
Retailer 17€946 EUR
Retailer 2€954 EUR
Retailer 6€1,365 EUR
Retailer 11€1,578 EUR
Retailer 4€1,608 EUR
Retailer 15€2,670 EUR
Adiamor€3,450 EUR
Retailer 9€3,576 EUR
Retailer 8€4,781 EUR
Retailer 7€4,955 EUR
Retailer 10€6,830 EUR

5 data points across 18 retailers

13 retailers€493 EUR to €3,450 EUR

A
Cheapest Retailer
-
€493 EUR
$551 USD
A
Retailer 2
-
€552 EUR
$617 USD
View
A
Retailer 3
-
€611 EUR
$683 USD
View
A
Retailer 4
-
€652 EUR
£574 GBP
View
A
Retailer 5
-
€687 EUR
HK$6,000 HKD
View
A
Retailer 6
-
€729 EUR
$815 USD
View
B+
Retailer 7
-
€944 EUR
$1,055 USD
View
A
Retailer 8
-
€946 EUR
$1,057 USD
View
A
Retailer 9
-
€954 EUR
£839 GBP
View
B+
Retailer 10
-
€1,578 EUR
$1,763 USD
View
B+
Retailer 11
-
€1,608 EUR
$1,797 USD
View
B
Retailer 12
-
€2,670 EUR
£2,349 GBP
View
Most Expensive
B
Adiamor
D-82827858 · Oct 31
€3,450 EUR
$3,854 USD
View
12 more retailers have this diamond
Prices start from €493 EURSave up to €2,956 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
5.20ct Oval
€493 EUR