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Emerald|Lab Grown|IGI

20.11ct I VS1 Emerald Lab Grown Diamond

ID • I/VS1 • IGI LG618479346

Shape and cutting style on the report: Emerald cut

Certificate IGI LG618479346

Diamond specifications and retailer prices

From €3,920 EUR
$4,380 USD
As of October 31, 2026
Save €15,745 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €19,665 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.11ct lab-grown emerald diamond

This 20.11ct lab-grown emerald sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618479346 or 618479346. Listed at 10 retailers as of October 31, 2026, with prices from €3,920 to €19,665, a €15,745 spread on the same certified stone. Brilliant Earth lists it at €19,665. 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

20.11
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618479346
Dimensions18.79 × 12.63 × 8.35 mm
L/W Ratio1.49
Culet sizeLarge
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
18.79 mm12.63 mm20.11 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618479346
Side View
Table 63.0%Crown 36.4°Girdle: MediumPavilion 39.4°Culet: LargeDepth 66.1%

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: Oct 31
Current: €19,665 EUR|Low: €3,784 EUR|High: €20,274 EUR|Avg: €9,978 EUR|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8€3,784 EUR
Retailer 10€3,920 EUR
Retailer 5€3,920 EUR
Retailer 11€4,384 EUR
Retailer 6€5,199 EUR
Retailer 7€5,939 EUR
Retailer 9€6,074 EUR
Retailer 2€6,523 EUR
Retailer 4€12,977 EUR
Retailer 3€13,858 EUR
Retailer 12€19,167 EUR
Brilliant Earth€19,665 EUR

20 data points across 12 retailers

10 retailers€3,920 EUR to €19,665 EUR

Retailer 1
-
€3,920 EUR
$4,379 USD
Price last confirmed 21 days ago
A
Retailer 2
-
€3,920 EUR
$4,380 USD
View
A
Retailer 3
-
€4,384 EUR
$4,898 USD
View
A
Retailer 4
-
€5,199 EUR
$5,808 USD
View
A
Retailer 5
-
€5,939 EUR
$6,635 USD
View
B+
Retailer 6
-
€6,074 EUR
$6,786 USD
View
B+
Retailer 7
-
€6,523 EUR
View
B
Retailer 8
-
€13,858 EUR
$15,482 USD
View
B
Retailer 9
-
€19,167 EUR
$21,413 USD
View
Most Expensive
B
Brilliant Earth
13702640A · Oct 31
€19,665 EUR
$21,970 USD
View
9 more retailers have this diamond
Prices start from €3,920 EURSave up to €15,745 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
20.11ct Emerald
€3,920 EUR