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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 $176 USD
As of October 27, 2026
Save $1,144 USD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,320 USD 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 27, 2026, with prices from $176 to $1,320, a $1,144 spread on the same certified stone. Do Amore Diamonds lists it at $1,320. 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
Color
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

How it works →
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 27
Current: $1,320 USD|Low: $140 USD|High: $1,410 USD|Avg: $695 USD|+1.5%
Do Amore Diamonds
Retailer 2
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
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Retailer 19
October 29, 2026
Retailer 9$176 USD
Retailer 19$196 USD
Retailer 15$204 USD
Retailer 6$218 USD
Retailer 13$218 USD
Retailer 17$294 USD
Retailer 2$438 USD
Retailer 4$484 USD
Retailer 7$545 USD
Retailer 14$660 USD
Retailer 18$665 USD
Retailer 5$774 USD
Retailer 10$810 USD
Retailer 3$880 USD
Retailer 11$889 USD
Retailer 8$947 USD
Retailer 16$1,118 USD
Retailer 12$1,126 USD
Do Amore Diamonds$1,320 USD

41 data points across 19 retailers

18 retailers$176 USD to $1,320 USD

A
Cheapest Retailer
-
$176 USD
A
Retailer 2
-
$196 USD
View
Final sale: no returns
A
Retailer 3
-
$204 USD
View
A
Retailer 4
-
$218 USD
View
A
Retailer 5
-
$218 USD
View
B+
Retailer 6
-
$294 USD
View
A
Retailer 7
-
$438 USD
£345 GBP
View
B+
Retailer 8
-
$484 USD
View
B+
Retailer 9
-
$545 USD
View
B+
Retailer 10
-
$660 USD
View
B+
Retailer 11
-
$665 USD
CA$924 CAD
View
B
Retailer 12
-
$774 USD
View
B
Retailer 13
-
$810 USD
View
B
Retailer 14
-
$880 USD
View
B
Retailer 15
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$947 USD
View
B
Retailer 16
-
$1,118 USD
View
B
Retailer 17
-
$1,126 USD
£887 GBP
View
Most Expensive
B
Do Amore Diamonds
25-121080-009 · Oct 29
$1,320 USD
View
17 more retailers have this diamond
Prices start from $176 USDSave up to $1,144 USD

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
$176 USD