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Emerald|Lab Grown|IGI

1.21ct G SI1 Emerald Lab Grown Diamond

GD • G/SI1 • IGI LG753503183

Shape and cutting style on the report: Emerald cut

Certificate IGI LG753503183

Diamond specifications and retailer prices

From £87 GBP
As of November 6, 2026
Save £809 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £895 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG753503183 or 753503183. Listed at 12 retailers as of November 5, 2026, with prices from £87 to £895, a £809 spread on the same certified stone. MOH London lists it at £895. 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

1.21
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle43.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG753503183
Dimensions7.22 × 5.04 × 3.40 mm
L/W Ratio1.43
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.22 mm5.04 mm1.21 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG753503183
Side View
Table 68.0%Crown 35.3°Girdle: MediumPavilion 43.9°Culet: LargeDepth 67.5%

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 6
Current: £895 GBP|Low: £87 GBP|High: £897 GBP|Avg: £302 GBP|-0.2%
MOH London
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
November 6, 2026
Retailer 9£87 GBP
Retailer 4£100 GBP
Retailer 10£114 GBP
Retailer 15£123 GBP
Retailer 3£209 GBP
Retailer 14£210 GBP
Retailer 2£217 GBP
Retailer 5£223 GBP
Retailer 11£298 GBP
Retailer 13£345 GBP
Retailer 8£386 GBP
Retailer 12£409 GBP
Retailer 6£536 GBP
Retailer 7£550 GBP
MOH London£895 GBP

11 data points across 15 retailers

12 retailers£87 GBP to £895 GBP

A
Cheapest Retailer
-
£87 GBP
B+
Retailer 2
-
£100 GBP
View
B+
Retailer 3
-
£114 GBP
View
B+
Retailer 4
-
£123 GBP
View
B+
Retailer 5
-
£209 GBP
View
B
Retailer 6
-
£210 GBP
View
B+
Retailer 7
-
£217 GBP
View
B+
Retailer 8
-
£298 GBP
View
B+
Retailer 9
-
£345 GBP
View
B+
Retailer 10
-
£386 GBP
View
B
Retailer 11
-
£409 GBP
View
Most Expensive
C
MOH London
LG753503183 · Nov 5
£895 GBP
View
11 more retailers have this diamond
Prices start from £87 GBPSave up to £809 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
1.21ct Emerald
£87 GBP