Emerald|Lab Grown|IGI

1.25ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG564350422

Shape and cutting style on the report: Emerald cut

Certificate IGI LG564350422

Diamond specifications and retailer prices

From £554 GBP
As of November 6, 2026
Save £1,028 GBP (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,805 GBP at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.25ct lab-grown emerald diamond

This 1.25ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG564350422 or 564350422. Listed at 10 retailers as of November 4, 2026, with a 186% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.25
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG564350422
Dimensions7.68 × 5.03 × 3.21 mm
L/W Ratio1.53
Culet sizeLong
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
7.68 mm5.03 mm1.25 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG564350422
Side View
Table 69.0%Crown 39.5°Girdle: MediumPavilion 39.5°Culet: LNGDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,020 GBP|Low: £531 GBP|High: £2,555 GBP|Avg: £1,074 GBP|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£554 GBP
Retailer 9£598 GBP
Retailer 6£642 GBP
Retailer 8£642 GBP
Retailer 3£773 GBP
Retailer 1£1,020 GBP
Retailer 7£1,039 GBP
Retailer 4£1,581 GBP
Retailer 2£2,514 GBP

45 data points across 9 retailers

10 retailers£554 GBP to £1,581 GBP

B+
Cheapest Retailer
-
£554 GBP
B
Retailer 2
-
£603 GBP
View
Retailer 3
-
£642 GBP
View
Price last confirmed 25 days ago
B
Retailer 4
-
£642 GBP
View
B
Retailer 5
-
£773 GBP
View
B
Retailer 6
-
£1,020 GBP
View
B
Retailer 7
-
£1,039 GBP
View
B
Retailer 8
-
£1,581 GBP
View
Most Expensive
NZ Jewellers
4e4b03a8-714e-4a72-87fb-1fd2928024f6 · Nov 6
£1,805 GBP
$2,430 USD
View
Price under review
8 more retailers have this diamond
Prices start from £554 GBPSave up to £1,028 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.

B+
1.25ct Emerald
£554 GBP