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Emerald|Lab Grown|IGI

2.50ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG594321590

Shape and cutting style on the report: Emerald cut

Certificate IGI LG594321590

Diamond specifications and retailer prices

From £230 GBP
$306 USD
As of October 27, 2026
Save £1,535 GBP (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,765 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.5ct lab-grown emerald diamond

This 2.5ct lab-grown emerald sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594321590 or 594321590. Listed at 15 retailers as of October 27, 2026, with prices from £230 to £1,765, a £1,535 spread on the same certified stone. Brilliant Earth lists it at £1,765. 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

2.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594321590
Dimensions9.01 × 6.39 × 4.34 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
9.01 mm6.39 mm2.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594321590
Side View
Table 64.0%Crown 38°Girdle: MediumPavilion 39.4°Culet: LNGDepth 67.9%

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: £1,765 GBP|Low: £189 GBP|High: £1,877 GBP|Avg: £656 GBP|-6.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 8£221 GBP
Retailer 4£230 GBP
Retailer 12£267 GBP
Retailer 15£285 GBP
Retailer 16£285 GBP
Retailer 11£402 GBP
Retailer 9£423 GBP
Retailer 5£465 GBP
Retailer 2£505 GBP
Retailer 6£565 GBP
Retailer 13£875 GBP
Retailer 3£915 GBP
Retailer 10£1,147 GBP
Retailer 14£1,337 GBP
Retailer 7£1,449 GBP
Brilliant Earth£1,765 GBP

39 data points across 16 retailers

15 retailers£230 GBP to £1,765 GBP

A
Cheapest Retailer
-
£230 GBP
$306 USD
A
Retailer 2
-
£267 GBP
$355 USD
View
A
Retailer 3
-
£285 GBP
$379 USD
View
A
Retailer 4
-
£285 GBP
$379 USD
View
A
Retailer 5
-
£402 GBP
$535 USD
View
A
Retailer 6
-
£423 GBP
€537 EUR
View
B+
Retailer 7
-
£465 GBP
$619 USD
View
B+
Retailer 8
-
£505 GBP
View
B+
Retailer 9
-
£565 GBP
$752 USD
View
B
Retailer 10
-
£875 GBP
$1,165 USD
View
B
Retailer 11
-
£915 GBP
$1,219 USD
View
B
Retailer 12
-
£1,147 GBP
View
B
Retailer 13
-
£1,337 GBP
$1,780 USD
View
B
Retailer 14
-
£1,449 GBP
$1,930 USD
View
Most Expensive
B
Brilliant Earth
7880824A · Oct 29
£1,765 GBP
$2,350 USD
View
14 more retailers have this diamond
Prices start from £230 GBPSave up to £1,535 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
2.50ct Emerald
£230 GBP