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Emerald|Lab Grown|IGI

1.45ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG623417450

Shape and cutting style on the report: Emerald cut

Certificate IGI LG623417450

Diamond specifications and retailer prices

From £142 GBP
As of November 4, 2026
Save £776 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £919 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.45ct lab-grown emerald diamond

This 1.45ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG623417450 or 623417450. Listed at 21 retailers as of November 4, 2026, with prices from £142 to £919, a £776 spread on the same certified stone. Brilliant Earth lists it at £919. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623417450
Dimensions7.76 × 5.26 × 3.55 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.76 mm5.26 mm1.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623417450
Side View
Table 66.0%Crown 32.9°Girdle: MediumPavilion 37.9°Culet: LargeDepth 67.5%

Caratlytics Score

How it works →
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: £919 GBP|Low: £138 GBP|High: £933 GBP|Avg: £433 GBP|-1.6%
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 20
November 5, 2026
Retailer 7£142 GBP
Retailer 14£159 GBP
Retailer 20£164 GBP
Retailer 12£171 GBP
Retailer 18£176 GBP
Retailer 10£287 GBP
Retailer 17£304 GBP
Retailer 5£307 GBP
Retailer 2£317 GBP
Retailer 4£421 GBP
Retailer 16£429 GBP
Retailer 3£441 GBP
Retailer 15£464 GBP
Retailer 11£530 GBP
Retailer 19£566 GBP
Retailer 9£605 GBP
Retailer 8£688 GBP
Retailer 13£820 GBP
Retailer 6£864 GBP
Brilliant Earth£919 GBP

31 data points across 20 retailers

21 retailers£142 GBP to £919 GBP

A
Cheapest Retailer
-
£142 GBP
A
Retailer 2
-
£159 GBP
View
Final sale: no returns
A
Retailer 3
-
£164 GBP
View
Retailer 4
-
£171 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£176 GBP
View
Retailer 6
-
£287 GBP
View
Price last confirmed 7 days ago
A
Retailer 7
-
£304 GBP
View
B+
Retailer 8
-
£307 GBP
View
A
Retailer 9
-
£317 GBP
View
B+
Retailer 10
-
£421 GBP
View
B+
Retailer 11
-
£429 GBP
View
B+
Retailer 12
-
£441 GBP
View
B+
Retailer 13
-
£464 GBP
View
Retailer 14
-
£530 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
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£559 GBP
View
B
Retailer 16
-
£566 GBP
View
B+
Retailer 17
-
£605 GBP
View
B+
Retailer 18
-
£688 GBP
View
B
Retailer 19
-
£820 GBP
View
B
Retailer 20
-
£864 GBP
View
Most Expensive
B
Brilliant Earth
14997430A · Nov 4
£919 GBP
$1,240 USD
View
20 more retailers have this diamond
Prices start from £142 GBPSave up to £776 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
1.45ct Emerald
£142 GBP