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Emerald|Lab Grown|IGI

1.00ct F IF Emerald Lab Grown Diamond

EX • F/IF • IGI LG683568757

Shape and cutting style on the report: Emerald cut

Certificate IGI LG683568757

Diamond specifications and retailer prices

From £138 GBP
As of November 5, 2026
Save £966 GBP (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,223 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 LG683568757 or 683568757. Listed at 25 retailers as of November 4, 2026, with a 701% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle45.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683568757
Dimensions6.84 × 4.45 × 3.08 mm
L/W Ratio1.54
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm4.45 mm1.00 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683568757
Side View
Table 63.0%Crown 41.4°Girdle: Slightly ThickPavilion 45.8°Culet: LargeDepth 69.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £270 GBP|Low: £124 GBP|High: £1,104 GBP|Avg: £419 GBP|+7.1%
Retailer 1
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
November 5, 2026
Retailer 6£124 GBP
Retailer 12£138 GBP
Retailer 14£153 GBP
Retailer 4£207 GBP
Retailer 13£263 GBP
Retailer 10£264 GBP
Retailer 1£270 GBP
Retailer 2£332 GBP
Retailer 9£374 GBP
Retailer 5£412 GBP
Retailer 16£521 GBP
Retailer 7£533 GBP
Retailer 11£716 GBP
Retailer 3£806 GBP
Retailer 15£833 GBP
Retailer 8£1,104 GBP

43 data points across 16 retailers

25 retailers£138 GBP to £1,104 GBP

Retailer 1
-
£120 GBP
Price last confirmed 44 days ago
Retailer 2
-
£120 GBP
View
Price last confirmed 37 days ago
Retailer 3
-
£124 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
£138 GBP
View
Final sale: no returns
Retailer 5
-
£139 GBP
View
Price last confirmed 42 days ago
Retailer 6
-
£147 GBP
View
Price last confirmed 37 days ago
Retailer 7
-
£147 GBP
View
Price last confirmed 45 days ago
Retailer 8
-
£153 GBP
View
Price last confirmed 11 days ago
A
Retailer 9
-
£153 GBP
View
B+
Retailer 10
-
£207 GBP
View
Retailer 11
-
£263 GBP
View
Price last confirmed 7 days ago
A
Retailer 12
-
£264 GBP
View
A
Retailer 13
-
£270 GBP
View
A
Retailer 14
-
£332 GBP
View
A
Retailer 15
-
£374 GBP
View
B+
Retailer 16
-
£412 GBP
View
Retailer 17
-
£479 GBP
View
Price last confirmed 36 days ago
B+
Retailer 18
-
£493 GBP
View
B+
Retailer 19
-
£521 GBP
View
B+
Retailer 20
-
£533 GBP
View
B
Retailer 21
-
£716 GBP
View
B
Retailer 22
-
£806 GBP
View
B
Retailer 23
-
£833 GBP
View
B
Retailer 24
-
£1,104 GBP
View
Most Expensive
Queensmith
LG683568757 · Oct 27
£1,223 GBP
View
Price last confirmed 8 days ago
24 more retailers have this diamond
Prices start from £138 GBPSave up to £966 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
£138 GBP