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Emerald|Lab Grown|IGI

4.20ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG768632797

Shape and cutting style on the report: Emerald cut

Certificate IGI LG768632797

Diamond specifications and retailer prices

From £2,835 GBP
$3,799 USD
As of October 30, 2026
Save £16,719 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £19,554 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown emerald diamond

This 4.2ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768632797 or 768632797. Listed at 15 retailers as of October 30, 2026, with prices from £2,835 to £19,554, a £16,719 spread on the same certified stone. Do Amore Diamonds lists it at £19,554. 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

4.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768632797
Dimensions10.55 × 7.53 × 4.99 mm
L/W Ratio1.40
Culet sizeLong
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.55 mm7.53 mm4.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768632797
Side View
Table 63.0%Crown 35.2°Girdle: THK-VTKPavilion 39.3°Culet: LNGDepth 66.3%

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 30
Current: £19,554 GBP|Low: £2,721 GBP|High: £22,323 GBP|Avg: £7,276 GBP|-12.4%
Do Amore Diamonds
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
October 30, 2026
Retailer 9£2,835 GBP
Retailer 4£2,979 GBP
Retailer 13£3,082 GBP
Retailer 15£3,344 GBP
Retailer 5£3,476 GBP
Retailer 7£3,809 GBP
Retailer 14£4,373 GBP
Retailer 3£4,547 GBP
Retailer 12£5,109 GBP
Retailer 6£5,941 GBP
Retailer 10£6,268 GBP
Retailer 11£7,576 GBP
Retailer 2£8,919 GBP
Retailer 8£9,027 GBP
Do Amore Diamonds£19,554 GBP

33 data points across 15 retailers

15 retailers£2,835 GBP to £19,554 GBP

A
Cheapest Retailer
-
£2,835 GBP
$3,799 USD
A
Retailer 2
-
£2,979 GBP
$3,991 USD
View
A
Retailer 3
-
£3,082 GBP
$4,130 USD
View
A
Retailer 4
-
£3,344 GBP
$4,480 USD
View
A
Retailer 5
-
£3,476 GBP
$4,658 USD
View
A
Retailer 6
-
£3,809 GBP
$5,104 USD
View
Final sale: no returns
A
Retailer 7
-
£4,373 GBP
$5,859 USD
View
A
Retailer 8
-
£4,547 GBP
$6,093 USD
View
A
Retailer 9
-
£5,109 GBP
$6,846 USD
View
Retailer 10
-
£5,941 GBP
$7,960 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£6,268 GBP
€7,998 EUR
View
B+
Retailer 12
-
£7,576 GBP
View
B+
Retailer 13
-
£8,919 GBP
$11,950 USD
View
B+
Retailer 14
-
£9,027 GBP
$12,095 USD
View
Most Expensive
B
Do Amore Diamonds
27-CB9F24E85 · Oct 30
£19,554 GBP
$26,200 USD
View
14 more retailers have this diamond
Prices start from £2,835 GBPSave up to £16,719 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.

A
4.20ct Emerald
£2,835 GBP