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Oval|Lab Grown|IGI

20.51ct F VS2 Oval Lab Grown Diamond

EX • F/VS2 • IGI LG805639019

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG805639019

Diamond specifications and retailer prices

From €12,099 EUR
$13,570 USD
As of November 1, 2026
Save €13,108 EUR (52%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €25,207 EUR at Adiamor · As of November 2, 2026
View at Adiamor

About this 20.51ct lab-grown oval diamond

This 20.51ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805639019 or 805639019. Listed at 3 retailers as of November 1, 2026, with prices from €12,099 to €25,207, a €13,108 spread on the same certified stone. Adiamor lists it at €25,207. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.51
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805639019
Dimensions22.24 × 15.54 × 9.40 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
22.24 mm15.54 mm20.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805639019
Side View
Table 60.0%Crown 35.2°Girdle: MED-THKPavilion 40°Culet: NoneDepth 60.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: €25,207 EUR|Low: €12,099 EUR|High: €25,207 EUR|Avg: €18,841 EUR
Adiamor
Retailer 2
Retailer 3
October 28, 2026
Retailer 2€12,099 EUR
Retailer 3€12,662 EUR
Adiamor€25,207 EUR

3 data points across 3 retailers

3 retailers€12,099 EUR to €25,207 EUR

B
Cheapest Retailer
-
€12,099 EUR
$13,570 USD
B
Retailer 2
-
€12,662 EUR
$14,202 USD
View
Most Expensive
B
Adiamor
D-82741714 · Nov 2
€25,207 EUR
$28,272 USD
View
2 more retailers have this diamond
Prices start from €12,099 EURSave up to €13,108 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.

B
20.51ct Oval
€12,099 EUR