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Emerald|Lab Grown|IGI

0.54ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG778649481

Shape and cutting style on the report: Emerald cut

Certificate IGI LG778649481

Diamond specifications and retailer prices

From £129 GBP
$172 USD
As of October 30, 2026
Save £568 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £697 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.54ct lab-grown emerald diamond

This 0.54ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778649481 or 778649481. Listed at 7 retailers as of October 29, 2026, with prices from £129 to £697, a £568 spread on the same certified stone. MOH London lists it at £697. 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

0.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778649481
Dimensions5.54 × 3.93 × 2.47 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
5.54 mm3.93 mm0.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG778649481
Side View
Table 70.0%Crown 34.1°Girdle: STK-THKPavilion 40.1°Culet: LargeDepth 62.8%

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 30
Current: £697 GBP|Low: £119 GBP|High: £702 GBP|Avg: £288 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5£129 GBP
Retailer 2£184 GBP
Retailer 3£228 GBP
Retailer 7£261 GBP
Retailer 4£300 GBP
Retailer 6£307 GBP
MOH London£697 GBP

40 data points across 7 retailers

7 retailers£129 GBP to £697 GBP

A
Cheapest Retailer
-
£129 GBP
$172 USD
B+
Retailer 2
-
£184 GBP
View
Retailer 3
-
£195 GBP
$260 USD
View
Price last confirmed 51 days ago
B+
Retailer 4
-
£228 GBP
View
B+
Retailer 5
-
£261 GBP
$347 USD
View
B
Retailer 6
-
£300 GBP
$400 USD
View
Most Expensive
B
MOH London
LG778649481 · Oct 29
£697 GBP
View
6 more retailers have this diamond
Prices start from £129 GBPSave up to £568 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
0.54ct Emerald
£129 GBP