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Emerald|Lab Grown|IGI

1.51ct F VS1 Emerald Lab Grown Diamond

EX • F/VS1 • IGI LG843688817

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843688817

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £1,139 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,304 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843688817 or 843688817. Listed at 21 retailers as of November 4, 2026, with prices from £164 to £1,304, a £1,139 spread on the same certified stone. Brilliant Earth lists it at £1,304. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843688817
Dimensions7.80 × 5.52 × 3.75 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm5.52 mm1.51 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843688817
Side View
Table 66.0%Crown 31.8°Girdle: MediumPavilion 40.7°Culet: LargeDepth 67.9%

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 4
Current: £376 GBP|Low: £164 GBP|High: £832 GBP|Avg: £467 GBP|+1.6%
Retailer 1
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Retailer 20
November 5, 2026
Retailer 19£164 GBP
Retailer 18£191 GBP
Retailer 4£204 GBP
Retailer 5£204 GBP
Retailer 13£227 GBP
Retailer 10£276 GBP
Retailer 15£353 GBP
Retailer 16£370 GBP
Retailer 1£376 GBP
Retailer 3£379 GBP
Retailer 8£447 GBP
Retailer 12£477 GBP
Retailer 14£541 GBP
Retailer 6£619 GBP
Retailer 20£656 GBP
Retailer 11£672 GBP
Retailer 2£678 GBP
Retailer 9£696 GBP
Retailer 17£819 GBP
Retailer 7£832 GBP

23 data points across 20 retailers

21 retailers£164 GBP to £1,304 GBP

A
Cheapest Retailer
-
£164 GBP
A
Retailer 2
-
£191 GBP
View
A
Retailer 3
-
£204 GBP
View
Retailer 4
-
£204 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£227 GBP
View
B+
Retailer 6
-
£276 GBP
View
A
Retailer 7
-
£353 GBP
View
Retailer 8
-
£370 GBP
View
Price last confirmed 7 days ago
A
Retailer 9
-
£376 GBP
View
A
Retailer 10
-
£379 GBP
View
B+
Retailer 11
-
£447 GBP
View
B+
Retailer 12
-
£477 GBP
View
B+
Retailer 13
-
£541 GBP
View
B+
Retailer 14
-
£619 GBP
View
B+
Retailer 15
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£656 GBP
View
B+
Retailer 16
-
£672 GBP
View
Retailer 17
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£678 GBP
View
Price last confirmed 18 days ago
B
Retailer 18
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£696 GBP
View
Retailer 19
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£819 GBP
View
Price last confirmed 10 days ago
B
Retailer 20
-
£832 GBP
View
Most Expensive
B
Brilliant Earth
22455593A · Nov 4
£1,304 GBP
$1,760 USD
View
20 more retailers have this diamond
Prices start from £164 GBPSave up to £1,139 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
1.51ct Emerald
£164 GBP