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Emerald|Lab Grown|IGI

1.01ct J SI1 Emerald Lab Grown Diamond

VG • J/SI1 • IGI LG407981441

Shape and cutting style on the report: Emerald cut

Certificate IGI LG407981441

Diamond specifications and retailer prices

From £440 GBP
$590 USD
As of October 30, 2026
Save £2,252 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,693 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407981441 or 407981441. Listed at 10 retailers as of October 29, 2026, with prices from £440 to £2,693, a £2,252 spread on the same certified stone. MOH London lists it at £2,693. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.5°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407981441
Dimensions6.40 × 4.79 × 3.31 mm
L/W Ratio1.34
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.40 mm4.79 mm1.01 ctJ / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407981441
Side View
Table 66.5%Crown 27.5°Girdle: Slightly ThickPavilion 41.7°Culet: LNGDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,693 GBP|Low: £440 GBP|High: £2,714 GBP|Avg: £1,199 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2£440 GBP
Retailer 5£681 GBP
Retailer 10£740 GBP
Retailer 6£790 GBP
Retailer 9£790 GBP
Retailer 11£922 GBP
Retailer 3£1,154 GBP
Retailer 7£1,267 GBP
Retailer 4£1,757 GBP
Retailer 8£2,220 GBP
MOH London£2,693 GBP

18 data points across 11 retailers

10 retailers£440 GBP to £2,693 GBP

A
Cheapest Retailer
-
£440 GBP
$590 USD
B+
Retailer 2
-
£681 GBP
$912 USD
View
B+
Retailer 3
-
£740 GBP
$992 USD
View
B
Retailer 4
-
£790 GBP
$1,058 USD
View
Retailer 5
-
£790 GBP
$1,058 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
£922 GBP
$1,235 USD
View
B
Retailer 7
-
£1,267 GBP
$1,697 USD
View
C
Retailer 8
-
£1,757 GBP
$2,354 USD
View
C
Retailer 9
-
£2,220 GBP
$2,975 USD
View
Most Expensive
C
MOH London
LG407981441 · Oct 29
£2,693 GBP
View
9 more retailers have this diamond
Prices start from £440 GBPSave up to £2,252 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
£440 GBP