CaratHunter
Plans
Emerald|Lab Grown|IGI

1.02ct J SI1 Emerald Lab Grown Diamond

VG • J/SI1 • IGI LG407981520

Shape and cutting style on the report: Emerald cut

Certificate IGI LG407981520

Diamond specifications and retailer prices

From £446 GBP
As of November 4, 2026
Save £2,239 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,685 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.02ct lab-grown emerald diamond

This 1.02ct 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 LG407981520 or 407981520. Listed at 10 retailers as of November 4, 2026, with prices from £446 to £2,685, a £2,239 spread on the same certified stone. MOH London lists it at £2,685. 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

1.02
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle28.2°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407981520
Dimensions6.97 × 4.60 × 3.14 mm
L/W Ratio1.52
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.97 mm4.60 mm1.02 ctJ / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407981520
Side View
Table 64.0%Crown 28.2°Girdle: MED-STKPavilion 38.1°Culet: LNGDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,685 GBP|Low: £446 GBP|High: £2,728 GBP|Avg: £1,228 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 2£446 GBP
Retailer 5£684 GBP
Retailer 10£744 GBP
Retailer 6£794 GBP
Retailer 9£794 GBP
Retailer 11£925 GBP
Retailer 3£1,158 GBP
Retailer 7£1,273 GBP
Retailer 4£1,766 GBP
Retailer 8£2,232 GBP
MOH London£2,685 GBP

17 data points across 11 retailers

10 retailers£446 GBP to £2,685 GBP

B+
Cheapest Retailer
-
£446 GBP
B+
Retailer 2
-
£684 GBP
View
B+
Retailer 3
-
£744 GBP
View
B
Retailer 4
-
£794 GBP
View
Retailer 5
-
£794 GBP
View
Price last confirmed 25 days ago
B
Retailer 6
-
£925 GBP
View
B
Retailer 7
-
£1,273 GBP
View
C
Retailer 8
-
£1,766 GBP
View
C
Retailer 9
-
£2,232 GBP
View
Most Expensive
C
MOH London
LG407981520 · Nov 5
£2,685 GBP
View
9 more retailers have this diamond
Prices start from £446 GBPSave up to £2,239 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.

B+
1.02ct Emerald
£446 GBP