CaratHunter
Plans
Emerald|Lab Grown|IGI

1.00ct J VS1 Emerald Lab Grown Diamond

VG • J/VS1 • IGI LG400933137

Shape and cutting style on the report: Emerald cut

Certificate IGI LG400933137

Diamond specifications and retailer prices

From £446 GBP
As of November 4, 2026
Save £1,257 GBP (74%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,703 GBP at NZ Jewellers · As of November 6, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG400933137 or 400933137. Listed at 7 retailers as of November 4, 2026, with prices from £446 to £1,703, a £1,257 spread on the same certified stone. NZ Jewellers lists it at £1,703. 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
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400933137
Dimensions6.64 × 4.75 × 3.19 mm
L/W Ratio1.40
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.64 mm4.75 mm1.00 ctJ / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG400933137
Side View
Table 66.5%CrownGirdle: MediumPavilionCulet: LNGDepth 67.2%

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: Nov 4
Current: £446 GBP|Low: £446 GBP|High: £1,447 GBP|Avg: £933 GBP|-18.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 1£446 GBP
Retailer 2£783 GBP
Retailer 3£909 GBP
Retailer 5£909 GBP
Retailer 6£984 GBP
Retailer 4£1,447 GBP

7 data points across 6 retailers

7 retailers£446 GBP to £1,703 GBP

A
Cheapest Retailer
-
£446 GBP
B+
Retailer 2
-
£783 GBP
View
B+
Retailer 3
-
£852 GBP
View
B
Retailer 4
-
£909 GBP
View
Retailer 5
-
£909 GBP
View
Price last confirmed 20 days ago
B
Retailer 6
-
£1,447 GBP
View
Most Expensive
B
NZ Jewellers
9c8af5c1-6d73-42f6-b340-d28374ae4838 · Nov 6
£1,703 GBP
$2,292 USD
View
6 more retailers have this diamond
Prices start from £446 GBPSave up to £1,257 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
£446 GBP