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Emerald|Lab Grown|IGI

1.55ct G SI1 Emerald Lab Grown Diamond

VG • G/SI1 • IGI LG847678919

Shape and cutting style on the report: Emerald cut

Certificate IGI LG847678919

Diamond specifications and retailer prices

From £288 GBP
$386 USD
As of November 1, 2026
Save £274 GBP (49%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £563 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847678919 or 847678919. Listed at 3 retailers as of October 31, 2026, with prices from £288 to £563, a £274 spread on the same certified stone. Taylor and Hart lists it at £563. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle29.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847678919
Dimensions8.12 × 5.55 × 3.40 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.12 mm5.55 mm1.55 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847678919
Side View
Table 64.0%Crown 31.6°Girdle: ThickPavilion 29.9°Culet: LargeDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £291 GBP|Low: £288 GBP|High: £563 GBP|Avg: £389 GBP|+0.3%
Retailer 1
Retailer 2
Taylor and Hart
November 1, 2026
Retailer 2£288 GBP
Retailer 1£291 GBP
Taylor and Hart£563 GBP

4 data points across 3 retailers

3 retailers£288 GBP to £563 GBP

B+
Cheapest Retailer
-
£288 GBP
$386 USD
A
Retailer 2
-
£291 GBP
View
Most Expensive
B
Taylor and Hart
ASDD4RO · Oct 31
£563 GBP
$754 USD
View
2 more retailers have this diamond
Prices start from £288 GBPSave up to £274 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
£288 GBP