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Emerald|Lab Grown|IGI

1.00ct J SI2 Emerald Lab Grown Diamond

ID • J/SI2 • IGI LG384945794

Shape and cutting style on the report: Emerald cut

Certificate IGI LG384945794

Diamond specifications and retailer prices

From £584 GBP
$783 USD
As of October 29, 2026
Save £1,321 GBP (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,905 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG384945794 or 384945794. Listed at 6 retailers as of October 28, 2026, with prices from £584 to £1,905, a £1,321 spread on the same certified stone. NZ Jewellers lists it at £1,905. 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

1.00
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG384945794
Dimensions7.08 × 4.78 × 3.10 mm
L/W Ratio1.48
Culet sizeLong
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.08 mm4.78 mm1.00 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG384945794
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: LNGDepth

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: £1,905 GBP|Low: £430 GBP|High: £1,905 GBP|Avg: £916 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 11, 2026
Retailer 7£430 GBP
Retailer 2£584 GBP
Retailer 6£636 GBP
Retailer 3£678 GBP
Retailer 5£678 GBP
Retailer 4£1,094 GBP
Retailer 8£1,516 GBP
NZ Jewellers£1,905 GBP

8 data points across 8 retailers

6 retailers£584 GBP to £1,905 GBP

A
Cheapest Retailer
-
£584 GBP
$783 USD
B+
Retailer 2
-
£636 GBP
$852 USD
View
B+
Retailer 3
-
£678 GBP
$908 USD
View
Retailer 4
-
£678 GBP
$908 USD
View
Price last confirmed 18 days ago
B
Retailer 5
-
£1,094 GBP
$1,466 USD
View
Most Expensive
C
NZ Jewellers
997a873b-b63e-4d7e-aa7a-79b1391f48c4 · Oct 28
£1,905 GBP
$2,553 USD
View
5 more retailers have this diamond
Prices start from £584 GBPSave up to £1,321 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
£584 GBP