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Emerald|Lab Grown|IGI

1.00ct E SI2 Emerald Lab Grown Diamond

VG • E/SI2 • IGI LG389919827

Shape and cutting style on the report: Emerald cut

Certificate IGI LG389919827

Diamond specifications and retailer prices

From £106 GBP
$141 USD
As of October 29, 2026
Save £317 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £423 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG389919827 or 389919827. Listed at 11 retailers as of October 28, 2026, with prices from £106 to £423, a £317 spread on the same certified stone. NZ Jewellers lists it at £423. 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG389919827
Dimensions6.85 × 4.89 × 3.34 mm
L/W Ratio1.40
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) and is type II
Top View
6.85 mm4.89 mm1.00 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG389919827
Side View
Table 73.0%CrownGirdle: MediumPavilionCulet: LNGDepth 68.3%

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 29
Current: £225 GBP|Low: £84 GBP|High: £616 GBP|Avg: £242 GBP|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 3£106 GBP
Retailer 8£119 GBP
Retailer 5£131 GBP
Retailer 6£131 GBP
Retailer 7£179 GBP
Retailer 1£225 GBP
Retailer 2£250 GBP
Retailer 4£300 GBP
Retailer 9£616 GBP

44 data points across 9 retailers

11 retailers£106 GBP to £423 GBP

A
Cheapest Retailer
-
£106 GBP
$141 USD
A
Retailer 2
-
£119 GBP
$158 USD
View
Final sale: no returns
A
Retailer 3
-
£123 GBP
$164 USD
View
A
Retailer 4
-
£131 GBP
$175 USD
View
B+
Retailer 5
-
£131 GBP
$175 USD
View
B+
Retailer 6
-
£179 GBP
$238 USD
View
B+
Retailer 7
-
£225 GBP
View
B+
Retailer 8
-
£250 GBP
View
B+
Retailer 9
-
£300 GBP
$400 USD
View
B
Retailer 10
-
£380 GBP
View
Most Expensive
B
NZ Jewellers
9b647a9e-4e8c-4469-b807-78459d5e71fb · Oct 28
£423 GBP
$563 USD
View
10 more retailers have this diamond
Prices start from £106 GBPSave up to £317 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
1.00ct Emerald
£106 GBP