CaratHunter
Plans
Emerald|Lab Grown|IGI

20.40ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG662422475

Shape and cutting style on the report: Emerald cut

Certificate IGI LG662422475

Diamond specifications and retailer prices

From €21,282 EUR
$23,776 USD
As of October 31, 2026
Save €6,676 EUR (24%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €39,572 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 20.4ct lab-grown emerald diamond

This 20.4ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG662422475 or 662422475. Listed at 16 retailers as of October 31, 2026, with a 31% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

20.40
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662422475
Dimensions18.68 × 13.41 × 8.44 mm
L/W Ratio1.39
Culet sizeLong
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.68 mm13.41 mm20.40 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662422475
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 32.5°Culet: LNGDepth 62.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €39,572 EUR|Low: €9,502 EUR|High: €76,015 EUR|Avg: €18,312 EUR|+9.4%
Brilliant Earth
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
Retailer 16
October 31, 2026
Retailer 8€11,481 EUR
Retailer 4€21,282 EUR
Retailer 7€21,713 EUR
Retailer 12€22,733 EUR
Retailer 9€23,491 EUR
Retailer 6€23,679 EUR
Retailer 15€25,537 EUR
Retailer 11€26,168 EUR
Retailer 5€26,309 EUR
Retailer 13€26,846 EUR
Retailer 16€27,249 EUR
Retailer 2€27,958 EUR
Retailer 14€30,160 EUR
Brilliant Earth€39,572 EUR
Retailer 10€60,534 EUR
Retailer 3€76,015 EUR

35 data points across 16 retailers

16 retailers€21,282 EUR to €27,958 EUR

Retailer 1
-
€11,481 EUR
$12,827 USD
Price last confirmed 20 days ago
B
Retailer 2
-
€21,282 EUR
$23,776 USD
View
Retailer 3
-
€21,713 EUR
A$37,320 AUD
View
Price last confirmed 10 days ago
B
Retailer 4
-
€22,733 EUR
$25,397 USD
View
B
Retailer 5
-
€23,491 EUR
$26,244 USD
View
B
Retailer 6
-
€23,679 EUR
$26,454 USD
View
B
Retailer 7
-
€25,537 EUR
$28,530 USD
View
B
Retailer 8
-
€26,168 EUR
$29,235 USD
View
B
Retailer 9
-
€26,309 EUR
$29,393 USD
View
Final sale: no returns
B
Retailer 10
-
€26,846 EUR
$29,993 USD
View
B
Retailer 11
-
€27,249 EUR
$30,443 USD
View
Retailer 12
-
€27,958 EUR
£24,594 GBP
View
Retailer 13
-
€30,160 EUR
$33,695 USD
View
Price under review
Most Expensive
Brilliant Earth
21391472A · Oct 29
€39,572 EUR
$44,210 USD
View
Price under review
13 more retailers have this diamond
Prices start from €21,282 EURSave up to €6,676 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
20.40ct Emerald
€21,282 EUR