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Emerald|Lab Grown|IGI

3.01ct E SI1 Emerald Lab Grown Diamond

EX • E/SI1 • IGI LG657421315

Shape and cutting style on the report: Emerald cut

Certificate IGI LG657421315

Diamond specifications and retailer prices

From £311 GBP
$417 USD
As of October 30, 2026
Save £3,070 GBP (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,381 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.01ct lab-grown emerald diamond

This 3.01ct lab-grown emerald sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG657421315 or 657421315. Listed at 17 retailers as of October 29, 2026, with prices from £311 to £3,381, a £3,070 spread on the same certified stone. Brilliant Earth lists it at £3,381. 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

3.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657421315
Dimensions9.99 × 6.61 × 4.33 mm
L/W Ratio1.51
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.99 mm6.61 mm3.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657421315
Side View
Table 64.0%Crown 36.5°Girdle: MED-STKPavilion 34.5°Culet: LNGDepth 65.5%

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 30
Current: £3,381 GBP|Low: £311 GBP|High: £3,418 GBP|Avg: £1,223 GBP
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
October 31, 2026
Retailer 10£311 GBP
Retailer 11£348 GBP
Retailer 3£385 GBP
Retailer 7£493 GBP
Retailer 5£512 GBP
Retailer 4£666 GBP
Retailer 2£699 GBP
Retailer 9£1,081 GBP
Retailer 13£1,399 GBP
Retailer 8£1,470 GBP
Retailer 6£1,572 GBP
Retailer 12£2,761 GBP
Brilliant Earth£3,381 GBP

42 data points across 13 retailers

17 retailers£311 GBP to £3,381 GBP

A
Cheapest Retailer
-
£311 GBP
$417 USD
A
Retailer 2
-
£348 GBP
$466 USD
View
Final sale: no returns
A
Retailer 3
-
£349 GBP
$467 USD
View
A
Retailer 4
-
£385 GBP
$516 USD
View
A
Retailer 5
-
£385 GBP
$516 USD
View
A
Retailer 6
-
£493 GBP
$660 USD
View
B+
Retailer 7
-
£512 GBP
$686 USD
View
B+
Retailer 8
-
£666 GBP
$892 USD
View
A
Retailer 9
-
£699 GBP
View
B
Retailer 10
-
£1,081 GBP
$1,449 USD
View
B
Retailer 11
-
£1,368 GBP
$1,833 USD
View
B
Retailer 12
-
£1,399 GBP
$1,875 USD
View
Retailer 13
-
£1,470 GBP
$1,970 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£1,478 GBP
$1,980 USD
View
B
Retailer 15
-
£1,572 GBP
View
B
Retailer 16
-
£2,761 GBP
$3,700 USD
View
Most Expensive
B
Brilliant Earth
18830780A · Oct 29
£3,381 GBP
$4,530 USD
View
16 more retailers have this diamond
Prices start from £311 GBPSave up to £3,070 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
3.01ct Emerald
£311 GBP