CaratHunter
Plans
Emerald|Lab Grown|IGI

1.55ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG750561508

Shape and cutting style on the report: Emerald cut

Certificate IGI LG750561508

Diamond specifications and retailer prices

From £143 GBP
$192 USD
As of November 1, 2026
Save £696 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £840 GBP at MOH London · As of October 29, 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 top-tier cut grade and certified by IGI LG750561508 or 750561508. Listed at 14 retailers as of October 29, 2026, with prices from £143 to £840, a £696 spread on the same certified stone. MOH London lists it at £840. 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

1.55
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750561508
Dimensions7.90 × 5.33 × 3.80 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.90 mm5.33 mm1.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750561508
Side View
Table 62.0%Crown 41.8°Girdle: STK-THKPavilion 41.6°Culet: LargeDepth 71.3%

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: Nov 1
Current: £840 GBP|Low: £140 GBP|High: £865 GBP|Avg: £413 GBP|-3.0%
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
Retailer 14
November 2, 2026
Retailer 14£143 GBP
Retailer 12£160 GBP
Retailer 9£166 GBP
Retailer 7£178 GBP
Retailer 4£178 GBP
Retailer 13£310 GBP
Retailer 2£323 GBP
Retailer 11£427 GBP
Retailer 10£457 GBP
Retailer 8£571 GBP
Retailer 5£582 GBP
Retailer 3£611 GBP
Retailer 6£821 GBP
MOH London£840 GBP

34 data points across 14 retailers

14 retailers£143 GBP to £840 GBP

A
Cheapest Retailer
-
£143 GBP
$192 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$223 USD
View
A
Retailer 4
-
£178 GBP
$238 USD
View
Retailer 5
-
£178 GBP
$239 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£310 GBP
$415 USD
View
A
Retailer 7
-
£323 GBP
View
B+
Retailer 8
-
£427 GBP
$572 USD
View
B+
Retailer 9
-
£457 GBP
$612 USD
View
B+
Retailer 10
-
£571 GBP
$765 USD
View
B+
Retailer 11
-
£582 GBP
SGD 1,053 SGD
View
B+
Retailer 12
-
£611 GBP
$818 USD
View
B
Retailer 13
-
£821 GBP
$1,100 USD
View
Most Expensive
B
MOH London
LG750561508 · Oct 29
£840 GBP
View
13 more retailers have this diamond
Prices start from £143 GBPSave up to £696 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
£143 GBP