CaratHunter
Plans
Emerald|Lab Grown|IGI

1.00ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG640461396

Shape and cutting style on the report: Emerald cut

Certificate IGI LG640461396

Diamond specifications and retailer prices

From £100 GBP
As of November 6, 2026
Save £926 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,026 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG640461396 or 640461396. Listed at 19 retailers as of November 5, 2026, with prices from £100 to £1,026, a £926 spread on the same certified stone. MOH London lists it at £1,026. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640461396
Dimensions6.66 × 4.68 × 3.19 mm
L/W Ratio1.42
Culet sizeLong
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
6.66 mm4.68 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640461396
Side View
Table 66.0%Crown 38.4°Girdle: MED-STKPavilion 41.8°Culet: LNGDepth 68.2%

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 6
Current: £1,026 GBP|Low: £100 GBP|High: £1,030 GBP|Avg: £294 GBP|+56.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 14£100 GBP
Retailer 7£110 GBP
Retailer 19£115 GBP
Retailer 4£123 GBP
Retailer 16£123 GBP
Retailer 11£143 GBP
Retailer 10£167 GBP
Retailer 2£206 GBP
Retailer 15£221 GBP
Retailer 18£233 GBP
Retailer 12£290 GBP
Retailer 5£306 GBP
Retailer 9£342 GBP
Retailer 17£396 GBP
Retailer 13£409 GBP
Retailer 3£418 GBP
Retailer 6£438 GBP
Retailer 8£730 GBP
MOH London£1,026 GBP

39 data points across 19 retailers

19 retailers£100 GBP to £1,026 GBP

A
Cheapest Retailer
-
£100 GBP
A
Retailer 2
-
£110 GBP
View
Final sale: no returns
A
Retailer 3
-
£115 GBP
View
Retailer 4
-
£123 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£123 GBP
View
A
Retailer 6
-
£143 GBP
View
B+
Retailer 7
-
£167 GBP
View
A
Retailer 8
-
£206 GBP
View
Retailer 9
-
£221 GBP
View
Price last confirmed 8 days ago
A
Retailer 10
-
£233 GBP
View
B+
Retailer 11
-
£290 GBP
View
B+
Retailer 12
-
£306 GBP
View
B+
Retailer 13
-
£342 GBP
View
B+
Retailer 14
-
£396 GBP
View
B+
Retailer 15
-
£409 GBP
View
B+
Retailer 16
-
£418 GBP
View
B+
Retailer 17
-
£438 GBP
View
B
Retailer 18
-
£730 GBP
View
Most Expensive
C
MOH London
LG640461396 · Nov 5
£1,026 GBP
View
18 more retailers have this diamond
Prices start from £100 GBPSave up to £926 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
£100 GBP