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Emerald|Lab Grown|IGI

4.28ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG811635661

Shape and cutting style on the report: Emerald cut

Certificate IGI LG811635661

Diamond specifications and retailer prices

From £2,887 GBP
$3,868 USD
As of October 30, 2026
Save £17,025 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £19,912 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown emerald diamond

This 4.28ct 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 LG811635661 or 811635661. Listed at 13 retailers as of October 29, 2026, with prices from £2,887 to £19,912, a £17,025 spread on the same certified stone. Do Amore Diamonds lists it at £19,912. 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

4.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635661
Dimensions10.76 × 7.64 × 5.06 mm
L/W Ratio1.41
Culet sizeLarge
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
10.76 mm7.64 mm4.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635661
Side View
Table 65.0%Crown 33.3°Girdle: MED-STKPavilion 37.4°Culet: LargeDepth 66.2%

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: £19,912 GBP|Low: £2,887 GBP|High: £22,726 GBP|Avg: £7,149 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
October 31, 2026
Retailer 9£2,887 GBP
Retailer 4£3,032 GBP
Retailer 7£3,129 GBP
Retailer 13£3,400 GBP
Retailer 2£3,594 GBP
Retailer 6£4,441 GBP
Retailer 3£4,630 GBP
Retailer 12£5,200 GBP
Retailer 5£5,997 GBP
Retailer 10£6,387 GBP
Retailer 11£7,713 GBP
Retailer 8£9,090 GBP
Do Amore Diamonds£19,912 GBP

35 data points across 13 retailers

13 retailers£2,887 GBP to £19,912 GBP

A
Cheapest Retailer
-
£2,887 GBP
$3,868 USD
A
Retailer 2
-
£3,032 GBP
$4,063 USD
View
A
Retailer 3
-
£3,129 GBP
$4,193 USD
View
A
Retailer 4
-
£3,400 GBP
$4,555 USD
View
A
Retailer 5
-
£3,594 GBP
$4,815 USD
View
A
Retailer 6
-
£4,441 GBP
$5,950 USD
View
A
Retailer 7
-
£4,630 GBP
$6,204 USD
View
A
Retailer 8
-
£5,200 GBP
$6,968 USD
View
Retailer 9
-
£5,997 GBP
$8,035 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£6,387 GBP
€8,150 EUR
View
B+
Retailer 11
-
£7,713 GBP
View
B+
Retailer 12
-
£9,090 GBP
$12,180 USD
View
Most Expensive
B
Do Amore Diamonds
27-C36E43D80 · Oct 29
£19,912 GBP
$26,680 USD
View
12 more retailers have this diamond
Prices start from £2,887 GBPSave up to £17,025 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
4.28ct Emerald
£2,887 GBP