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Emerald|Lab Grown|IGI

1.21ct F SI1 Emerald Lab Grown Diamond

GD • F/SI1 • IGI LG582376849

Shape and cutting style on the report: Emerald cut

Certificate IGI LG582376849

Diamond specifications and retailer prices

From £165 GBP
As of November 5, 2026
Save £1,106 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,271 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG582376849 or 582376849. Listed at 14 retailers as of November 5, 2026, with prices from £165 to £1,271, a £1,106 spread on the same certified stone. Do Amore Diamonds lists it at £1,271. 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
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582376849
Dimensions7.33 × 4.89 × 3.28 mm
L/W Ratio1.50
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.33 mm4.89 mm1.21 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582376849
Side View
Table 61.0%Crown 35.1°Girdle: MediumPavilion 38.4°Culet: LNGDepth 67.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,271 GBP|Low: £162 GBP|High: £1,271 GBP|Avg: £477 GBP|+1.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£162 GBP
Retailer 6£165 GBP
Retailer 5£221 GBP
Retailer 10£318 GBP
Retailer 2£326 GBP
Retailer 8£405 GBP
Retailer 4£556 GBP
Retailer 7£739 GBP
Retailer 3£843 GBP
Do Amore Diamonds£1,271 GBP

40 data points across 10 retailers

14 retailers£165 GBP to £1,271 GBP

Retailer 1
-
£131 GBP
Price last confirmed 37 days ago
Retailer 2
-
£152 GBP
View
Price last confirmed 44 days ago
Retailer 3
-
£160 GBP
View
Price last confirmed 38 days ago
B+
Retailer 4
-
£165 GBP
View
B
Retailer 5
-
£221 GBP
View
B+
Retailer 6
-
£256 GBP
View
B+
Retailer 7
-
£318 GBP
View
B+
Retailer 8
-
£326 GBP
View
B+
Retailer 9
-
£405 GBP
View
B
Retailer 10
-
£556 GBP
View
Retailer 11
-
£575 GBP
View
Price last confirmed 37 days ago
B
Retailer 12
-
£739 GBP
View
B
Retailer 13
-
£843 GBP
View
Most Expensive
C
Do Amore Diamonds
27-7123E472F · Nov 6
£1,271 GBP
$1,710 USD
View
13 more retailers have this diamond
Prices start from £165 GBPSave up to £1,106 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.

B+
1.21ct Emerald
£165 GBP