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Emerald|Lab Grown|IGI

1.31ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG550230509

Shape and cutting style on the report: Emerald cut

Certificate IGI LG550230509

Diamond specifications and retailer prices

From £132 GBP
$176 USD
As of October 30, 2026
Save £859 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £991 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.31ct lab-grown emerald diamond

This 1.31ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG550230509 or 550230509. Listed at 18 retailers as of October 29, 2026, with prices from £132 to £991, a £859 spread on the same certified stone. Do Amore Diamonds lists it at £991. 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

1.31
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.8°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550230509
Dimensions7.61 × 5.09 × 3.41 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
7.61 mm5.09 mm1.31 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550230509
Side View
Table 63.5%Crown 29.8°Girdle: MediumPavilion 41.7°Culet: LNGDepth 67.0%

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: Oct 30
Current: £991 GBP|Low: £105 GBP|High: £1,059 GBP|Avg: £522 GBP|+1.5%
Do Amore Diamonds
Retailer 2
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Retailer 19
October 29, 2026
Retailer 9£132 GBP
Retailer 19£147 GBP
Retailer 15£153 GBP
Retailer 6£164 GBP
Retailer 13£164 GBP
Retailer 17£221 GBP
Retailer 2£329 GBP
Retailer 4£364 GBP
Retailer 7£409 GBP
Retailer 14£496 GBP
Retailer 18£500 GBP
Retailer 5£581 GBP
Retailer 10£608 GBP
Retailer 3£661 GBP
Retailer 11£667 GBP
Retailer 8£711 GBP
Retailer 16£840 GBP
Retailer 12£846 GBP
Do Amore Diamonds£991 GBP

41 data points across 19 retailers

18 retailers£132 GBP to £991 GBP

A
Cheapest Retailer
-
£132 GBP
$176 USD
A
Retailer 2
-
£147 GBP
$196 USD
View
Final sale: no returns
A
Retailer 3
-
£153 GBP
$204 USD
View
A
Retailer 4
-
£164 GBP
$218 USD
View
A
Retailer 5
-
£164 GBP
$218 USD
View
B+
Retailer 6
-
£221 GBP
$294 USD
View
A
Retailer 7
-
£329 GBP
View
B+
Retailer 8
-
£364 GBP
$484 USD
View
B+
Retailer 9
-
£409 GBP
$545 USD
View
B+
Retailer 10
-
£496 GBP
$660 USD
View
B+
Retailer 11
-
£500 GBP
CA$924 CAD
View
B
Retailer 12
-
£581 GBP
$774 USD
View
B
Retailer 13
-
£608 GBP
$810 USD
View
B
Retailer 14
-
£661 GBP
$880 USD
View
B
Retailer 15
-
£711 GBP
$947 USD
View
B
Retailer 16
-
£840 GBP
$1,118 USD
View
B
Retailer 17
-
£846 GBP
View
Most Expensive
B
Do Amore Diamonds
25-121080-009 · Oct 29
£991 GBP
$1,320 USD
View
17 more retailers have this diamond
Prices start from £132 GBPSave up to £859 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
1.31ct Emerald
£132 GBP