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Emerald|Lab Grown|IGI

1.01ct J SI2 Emerald Lab Grown Diamond

ID • J/SI2 • IGI LG451055849

Shape and cutting style on the report: Emerald cut

Certificate IGI LG451055849

Diamond specifications and retailer prices

From £265 GBP
€338 EUR
As of October 29, 2026
Save £421 GBP (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £686 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown emerald diamond

This 1.01ct lab-grown emerald sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055849 or 451055849. Listed at 8 retailers as of October 29, 2026, with prices from £265 to £686, a £421 spread on the same certified stone. MOH London lists it at £686. 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

1.01
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055849
Dimensions6.99 × 4.81 × 3.02 mm
L/W Ratio1.45
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.99 mm4.81 mm1.01 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055849
Side View
Table 71.0%Crown 28.4°Girdle: MediumPavilion 38.9°Culet: LNGDepth 62.8%

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 29
Current: £686 GBP|Low: £246 GBP|High: £690 GBP|Avg: £406 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2£265 GBP
Retailer 4£265 GBP
Retailer 5£369 GBP
Retailer 3£496 GBP
MOH London£686 GBP

13 data points across 5 retailers

8 retailers£265 GBP to £686 GBP

Retailer 1
-
£118 GBP
$158 USD
Price last confirmed 31 days ago
Retailer 2
-
£137 GBP
$183 USD
View
Price last confirmed 36 days ago
Retailer 3
-
£144 GBP
$193 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
£265 GBP
€338 EUR
View
B+
Retailer 5
-
£265 GBP
$355 USD
View
Retailer 6
-
£469 GBP
$628 USD
View
Price last confirmed 30 days ago
Retailer 7
-
£496 GBP
$664 USD
View
Price last confirmed 8 days ago
Most Expensive
B+
MOH London
LG451055849 · Oct 29
£686 GBP
View
7 more retailers have this diamond
Prices start from £265 GBPSave up to £421 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
1.01ct Emerald
£265 GBP