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Emerald|Lab Grown|IGI

1.00ct F IF Emerald Lab Grown Diamond

ID • F/IF • IGI LG686505176

Shape and cutting style on the report: Emerald cut

Certificate IGI LG686505176

Diamond specifications and retailer prices

From £215 GBP
As of November 4, 2026
Save £526 GBP (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £740 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown emerald diamond

This 1ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG686505176 or 686505176. Listed at 9 retailers as of November 4, 2026, with prices from £215 to £740, a £526 spread on the same certified stone. MOH London lists it at £740. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG686505176
Dimensions6.67 × 4.85 × 3.20 mm
L/W Ratio1.38
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.67 mm4.85 mm1.00 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG686505176
Side View
Table 66.0%Crown 35.9°Girdle: MediumPavilion 41.1°Culet: LargeDepth 66.0%

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: £740 GBP|Low: £215 GBP|High: £1,156 GBP|Avg: £501 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5£215 GBP
Retailer 4£274 GBP
Retailer 2£281 GBP
Retailer 7£337 GBP
Retailer 3£401 GBP
Retailer 9£413 GBP
Retailer 6£535 GBP
Retailer 10£550 GBP
MOH London£740 GBP
Retailer 8£1,156 GBP

44 data points across 10 retailers

9 retailers£215 GBP to £740 GBP

B+
Cheapest Retailer
-
£215 GBP
Retailer 2
-
£274 GBP
View
Price last confirmed 7 days ago
A
Retailer 3
-
£281 GBP
View
A
Retailer 4
-
£337 GBP
View
B+
Retailer 5
-
£401 GBP
View
B+
Retailer 6
-
£413 GBP
View
Retailer 7
-
£535 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£550 GBP
View
Most Expensive
B
MOH London
LG686505176 · Nov 5
£740 GBP
View
8 more retailers have this diamond
Prices start from £215 GBPSave up to £526 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
£215 GBP