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Emerald|Lab Grown|IGI

0.78ct H SI2 Emerald Lab Grown Diamond

ID • H/SI2 • IGI LG436046450

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436046450

Diamond specifications and retailer prices

From £321 GBP
$428 USD
As of October 27, 2026
Save £1,145 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,467 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.78ct lab-grown emerald diamond

This 0.78ct lab-grown emerald sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046450 or 436046450. Listed at 10 retailers as of October 26, 2026, with prices from £321 to £1,467, a £1,145 spread on the same certified stone. MOH London lists it at £1,467. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.78
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle18.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046450
Dimensions6.81 × 4.36 × 2.76 mm
L/W Ratio1.56
Culet sizeLong
Cert comments
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Top View
6.81 mm4.36 mm0.78 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046450
Side View
Table 63.5%Crown 18.3°Girdle: MediumPavilion 39°Culet: LNGDepth 63.3%

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 27
Current: £1,467 GBP|Low: £309 GBP|High: £1,483 GBP|Avg: £653 GBP|+0.1%
MOH London
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 26, 2026
Retailer 6£321 GBP
Retailer 13£360 GBP
Retailer 12£360 GBP
Retailer 4£388 GBP
Retailer 8£399 GBP
Retailer 11£399 GBP
Retailer 7£413 GBP
Retailer 9£629 GBP
Retailer 3£697 GBP
Retailer 5£835 GBP
Retailer 2£1,119 GBP
Retailer 10£1,282 GBP
MOH London£1,467 GBP

18 data points across 13 retailers

10 retailers£321 GBP to £1,467 GBP

A
Cheapest Retailer
-
£321 GBP
$428 USD
A
Retailer 2
-
£360 GBP
$479 USD
View
Final sale: no returns
A
Retailer 3
-
£360 GBP
$480 USD
View
A
Retailer 4
-
£399 GBP
$531 USD
View
A
Retailer 5
-
£399 GBP
$531 USD
View
A
Retailer 6
-
£413 GBP
$550 USD
View
B+
Retailer 7
-
£629 GBP
$837 USD
View
B
Retailer 8
-
£1,119 GBP
$1,490 USD
View
B
Retailer 9
-
£1,282 GBP
$1,707 USD
View
Most Expensive
B
MOH London
LG436046450 · Oct 26
£1,467 GBP
View
9 more retailers have this diamond
Prices start from £321 GBPSave up to £1,145 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
0.78ct Emerald
£321 GBP