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Emerald|Lab Grown|IGI

4.31ct D FL Emerald Lab Grown Diamond

EX • D/FL • IGI LG780663836

Shape and cutting style on the report: Emerald cut

Certificate IGI LG780663836

Diamond specifications and retailer prices

From £3,848 GBP
$5,124 USD
As of October 29, 2026
Save £13,206 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £17,054 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.31ct lab-grown emerald diamond

This 4.31ct 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 LG780663836 or 780663836. Listed at 13 retailers as of October 29, 2026, with prices from £3,848 to £17,054, a £13,206 spread on the same certified stone. Brilliant Earth lists it at £17,054. 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

4.31
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663836
Dimensions11.14 × 7.70 × 5.08 mm
L/W Ratio1.45
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
11.14 mm7.70 mm4.31 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663836
Side View
Table 64.0%Crown 30.4°Girdle: MED-STKPavilion 40.4°Culet: LargeDepth 66.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £17,054 GBP|Low: £3,848 GBP|High: £17,579 GBP|Avg: £9,395 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
October 30, 2026
Retailer 10£3,848 GBP
Retailer 12£4,890 GBP
Retailer 11£5,152 GBP
Retailer 2£5,327 GBP
Retailer 5£6,324 GBP
Retailer 7£6,749 GBP
Retailer 13£7,685 GBP
Retailer 8£8,527 GBP
Retailer 6£8,718 GBP
Retailer 4£11,065 GBP
Retailer 9£14,663 GBP
Retailer 3£16,341 GBP
Brilliant Earth£17,054 GBP

41 data points across 13 retailers

13 retailers£3,848 GBP to £17,054 GBP

A
Cheapest Retailer
-
£3,848 GBP
$5,124 USD
A
Retailer 2
-
£4,890 GBP
$6,512 USD
View
A
Retailer 3
-
£5,152 GBP
HK$53,600 HKD
View
A
Retailer 4
-
£5,327 GBP
View
B+
Retailer 5
-
£6,324 GBP
$8,422 USD
View
B+
Retailer 6
-
£6,749 GBP
€8,560 EUR
View
B+
Retailer 7
-
£7,685 GBP
$10,234 USD
View
B+
Retailer 8
-
£8,527 GBP
View
B+
Retailer 9
-
£8,718 GBP
ZAR 187,562 ZAR
View
B
Retailer 10
-
£11,065 GBP
$14,735 USD
View
B
Retailer 11
-
£14,663 GBP
$19,526 USD
View
B
Retailer 12
-
£16,341 GBP
$21,761 USD
View
Most Expensive
B
Brilliant Earth
19712492A · Oct 29
£17,054 GBP
$22,710 USD
View
12 more retailers have this diamond
Prices start from £3,848 GBPSave up to £13,206 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
4.31ct Emerald
£3,848 GBP