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Emerald|Lab Grown|IGI

4.01ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG691589358

Shape and cutting style on the report: Emerald cut

Certificate IGI LG691589358

Diamond specifications and retailer prices

From £552 GBP
$740 USD
As of October 30, 2026
Save £4,157 GBP (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,709 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.01ct lab-grown emerald diamond

This 4.01ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG691589358 or 691589358. Listed at 15 retailers as of October 29, 2026, with prices from £552 to £4,709, a £4,157 spread on the same certified stone. Brilliant Earth lists it at £4,709. 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

4.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691589358
Dimensions10.22 × 7.32 × 5.04 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.22 mm7.32 mm4.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691589358
Side View
Table 63.0%Crown 39.2°Girdle: Slightly ThickPavilion 37.8°Culet: LargeDepth 68.9%

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: £4,709 GBP|Low: £527 GBP|High: £4,709 GBP|Avg: £1,358 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
Retailer 14
Retailer 15
October 30, 2026
Retailer 11£552 GBP
Retailer 3£601 GBP
Retailer 5£617 GBP
Retailer 12£640 GBP
Retailer 15£640 GBP
Retailer 9£772 GBP
Retailer 4£893 GBP
Retailer 2£1,028 GBP
Retailer 13£1,038 GBP
Retailer 10£1,578 GBP
Retailer 14£1,801 GBP
Retailer 6£2,075 GBP
Retailer 7£2,208 GBP
Retailer 8£2,529 GBP
Brilliant Earth£4,709 GBP

42 data points across 15 retailers

15 retailers£552 GBP to £4,709 GBP

A
Cheapest Retailer
-
£552 GBP
$740 USD
A
Retailer 2
-
£601 GBP
$805 USD
View
A
Retailer 3
-
£617 GBP
$827 USD
View
Final sale: no returns
Retailer 4
-
£640 GBP
$858 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
£640 GBP
$858 USD
View
A
Retailer 6
-
£772 GBP
$1,035 USD
View
B+
Retailer 7
-
£893 GBP
$1,196 USD
View
A
Retailer 8
-
£1,028 GBP
View
B+
Retailer 9
-
£1,038 GBP
$1,391 USD
View
B
Retailer 10
-
£1,578 GBP
$2,114 USD
View
B
Retailer 11
-
£1,801 GBP
$2,413 USD
View
B
Retailer 12
-
£2,075 GBP
$2,781 USD
View
B
Retailer 13
-
£2,208 GBP
$2,959 USD
View
B
Retailer 14
-
£2,529 GBP
View
Most Expensive
B
Brilliant Earth
17970346A · Oct 29
£4,709 GBP
$6,310 USD
View
14 more retailers have this diamond
Prices start from £552 GBPSave up to £4,157 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
4.01ct Emerald
£552 GBP