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Emerald|Lab Grown|IGI

0.70ct J SI2 Emerald Lab Grown Diamond

ID • J/SI2 • IGI LG389990171

Shape and cutting style on the report: Emerald cut

Certificate IGI LG389990171

Diamond specifications and retailer prices

From £275 GBP
$366 USD
As of October 29, 2026
Save £1,065 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,340 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.7ct lab-grown emerald diamond

This 0.7ct lab-grown emerald sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG389990171 or 389990171. Listed at 11 retailers as of October 29, 2026, with prices from £275 to £1,340, a £1,065 spread on the same certified stone. MOH London lists it at £1,340. 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

0.70
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG389990171
Dimensions6.11 × 4.18 × 2.82 mm
L/W Ratio1.46
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) and is type IIa
Top View
6.11 mm4.18 mm0.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG389990171
Side View
Table 61.0%CrownGirdlePavilionCulet: LNGDepth 67.5%

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: Oct 29
Current: £1,340 GBP|Low: £264 GBP|High: £1,349 GBP|Avg: £596 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 7£275 GBP
Retailer 3£307 GBP
Retailer 13£319 GBP
Retailer 9£341 GBP
Retailer 12£341 GBP
Retailer 8£353 GBP
Retailer 10£545 GBP
Retailer 2£613 GBP
Retailer 4£639 GBP
Retailer 5£714 GBP
Retailer 6£1,000 GBP
Retailer 11£1,096 GBP
MOH London£1,340 GBP

23 data points across 13 retailers

11 retailers£275 GBP to £1,340 GBP

B+
Cheapest Retailer
-
£275 GBP
$366 USD
B+
Retailer 2
-
£307 GBP
$409 USD
View
Final sale: no returns
B+
Retailer 3
-
£319 GBP
$425 USD
View
B+
Retailer 4
-
£341 GBP
$454 USD
View
B+
Retailer 5
-
£341 GBP
$454 USD
View
B+
Retailer 6
-
£353 GBP
$470 USD
View
B
Retailer 7
-
£545 GBP
$726 USD
View
B
Retailer 8
-
£613 GBP
€777 EUR
View
C
Retailer 9
-
£1,000 GBP
$1,332 USD
View
C
Retailer 10
-
£1,096 GBP
$1,460 USD
View
Most Expensive
B
MOH London
LG389990171 · Oct 29
£1,340 GBP
View
10 more retailers have this diamond
Prices start from £275 GBPSave up to £1,065 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+
0.70ct Emerald
£275 GBP