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Emerald|Lab Grown|IGI

1.31ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG588358621

Shape and cutting style on the report: Emerald cut

Certificate IGI LG588358621

Diamond specifications and retailer prices

From £122 GBP
$163 USD
As of October 27, 2026
Save £1,050 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,172 GBP at Do Amore Diamonds · As of October 27, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG588358621 or 588358621. Listed at 9 retailers as of October 27, 2026, with prices from £122 to £1,172, a £1,050 spread on the same certified stone. Do Amore Diamonds lists it at £1,172. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588358621
Dimensions7.42 × 5.25 × 3.49 mm
L/W Ratio1.41
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
7.42 mm5.25 mm1.31 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG588358621
Side View
Table 66.0%Crown 38.2°Girdle: MediumPavilion 40.8°Culet: LNGDepth 66.5%

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 27
Current: £1,172 GBP|Low: £94 GBP|High: £1,172 GBP|Avg: £474 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 18, 2026
Retailer 4£122 GBP
Retailer 9£137 GBP
Retailer 10£142 GBP
Retailer 6£273 GBP
Retailer 3£513 GBP
Retailer 8£537 GBP
Retailer 7£551 GBP
Retailer 5£605 GBP
Retailer 2£785 GBP
Do Amore Diamonds£1,172 GBP

17 data points across 10 retailers

9 retailers£122 GBP to £1,172 GBP

A
Cheapest Retailer
-
£122 GBP
$163 USD
A
Retailer 2
-
£142 GBP
$190 USD
View
Retailer 3
-
£273 GBP
$366 USD
View
Price last confirmed 7 days ago
B
Retailer 4
-
£513 GBP
$688 USD
View
Retailer 5
-
£537 GBP
$719 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
£551 GBP
$739 USD
View
B
Retailer 7
-
£605 GBP
$810 USD
View
Retailer 8
-
£785 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-235D73535 · Oct 27
£1,172 GBP
$1,570 USD
View
8 more retailers have this diamond
Prices start from £122 GBPSave up to £1,050 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
£122 GBP