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Emerald|Lab Grown|IGI

20.07ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG655426934

Shape and cutting style on the report: Emerald cut

Certificate IGI LG655426934

Diamond specifications and retailer prices

From £5,505 GBP
$7,388 USD
As of November 2, 2026
Save £15,889 GBP (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £28,347 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 20.07ct lab-grown emerald diamond

This 20.07ct 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 LG655426934 or 655426934. Listed at 17 retailers as of October 31, 2026, with a 289% 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

20.07
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655426934
Dimensions19.21 × 12.78 × 8.05 mm
L/W Ratio1.50
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.21 mm12.78 mm20.07 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655426934
Side View
Table 62.0%Crown 32.2°Girdle: MediumPavilion 38.5°Culet: LargeDepth 63.0%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £28,347 GBP|Low: £5,285 GBP|High: £29,226 GBP|Avg: £10,716 GBP|-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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 17£5,505 GBP
Retailer 13£5,725 GBP
Retailer 4£6,166 GBP
Retailer 6£6,193 GBP
Retailer 5£6,345 GBP
Retailer 8£6,386 GBP
Retailer 18£6,386 GBP
Retailer 15£6,476 GBP
Retailer 16£7,182 GBP
Retailer 14£7,220 GBP
Retailer 7£7,396 GBP
Retailer 2£7,865 GBP
Retailer 12£11,278 GBP
Retailer 11£12,169 GBP
Retailer 3£17,779 GBP
Retailer 9£19,658 GBP
Retailer 10£21,394 GBP
Brilliant Earth£28,347 GBP

27 data points across 18 retailers

17 retailers£5,505 GBP to £21,394 GBP

B+
Cheapest Retailer
-
£5,505 GBP
$7,388 USD
B+
Retailer 2
-
£5,725 GBP
$7,683 USD
View
B+
Retailer 3
-
£6,193 GBP
$8,310 USD
View
B+
Retailer 4
-
£6,345 GBP
$8,515 USD
View
Retailer 5
-
£6,386 GBP
$8,570 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
£6,386 GBP
$8,570 USD
View
Retailer 7
-
£6,476 GBP
$8,690 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£7,182 GBP
$9,638 USD
View
B+
Retailer 9
-
£7,220 GBP
$9,689 USD
View
B
Retailer 10
-
£7,396 GBP
$9,925 USD
View
B+
Retailer 11
-
£7,865 GBP
View
B
Retailer 12
-
£11,278 GBP
€14,414 EUR
View
B
Retailer 13
-
£12,169 GBP
A$25,123 AUD
View
Retailer 14
-
£17,779 GBP
$23,858 USD
View
Price last confirmed 22 days ago
B
Retailer 15
-
£19,658 GBP
$26,380 USD
View
B
Retailer 16
-
£21,394 GBP
$28,709 USD
View
Most Expensive
Brilliant Earth
13702749A · Nov 2
£28,347 GBP
$38,040 USD
View
Price under review
16 more retailers have this diamond
Prices start from £5,505 GBPSave up to £15,889 GBP

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+
20.07ct Emerald
£5,505 GBP