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Emerald|Lab Grown|IGI

1.55ct F SI1 Emerald Lab Grown Diamond

VG • F/SI1 • IGI LG754501645

Shape and cutting style on the report: Emerald cut

Certificate IGI LG754501645

Diamond specifications and retailer prices

From £125 GBP
$168 USD
As of November 1, 2026
Save £604 GBP (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £730 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.55ct lab-grown emerald diamond

This 1.55ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG754501645 or 754501645. Listed at 8 retailers as of October 26, 2026, with prices from £125 to £730, a £604 spread on the same certified stone. MOH London lists it at £730. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754501645
Dimensions7.85 × 5.37 × 3.69 mm
L/W Ratio1.46
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.85 mm5.37 mm1.55 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754501645
Side View
Table 64.0%Crown 39.2°Girdle: MediumPavilion 40.5°Culet: LNGDepth 68.7%

Caratlytics Score

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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: Nov 1
Current: £730 GBP|Low: £125 GBP|High: £737 GBP|Avg: £405 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4£125 GBP
Retailer 7£231 GBP
Retailer 8£247 GBP
Retailer 2£270 GBP
Retailer 9£379 GBP
Retailer 6£408 GBP
Retailer 3£529 GBP
Retailer 5£633 GBP
MOH London£730 GBP

18 data points across 9 retailers

8 retailers£125 GBP to £730 GBP

A
Cheapest Retailer
-
£125 GBP
$168 USD
A
Retailer 2
-
£146 GBP
$195 USD
View
A
Retailer 3
-
£270 GBP
€345 EUR
View
B+
Retailer 4
-
£408 GBP
$547 USD
View
B+
Retailer 5
-
£501 GBP
$671 USD
View
B
Retailer 6
-
£529 GBP
$709 USD
View
Retailer 7
-
£633 GBP
SGD 1,147 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
MOH London
LG754501645 · Oct 26
£730 GBP
View
7 more retailers have this diamond
Prices start from £125 GBPSave up to £604 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
1.55ct Emerald
£125 GBP