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Emerald|Lab Grown|IGI

1.25ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG550260097

Shape and cutting style on the report: Emerald cut

Certificate IGI LG550260097

Diamond specifications and retailer prices

From £147 GBP
As of November 1, 2026
Save £830 GBP (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £977 GBP at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

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 LG550260097 or 550260097. Listed at 10 retailers as of November 1, 2026, with prices from £147 to £977, a £830 spread on the same certified stone. Taylor and Hart lists it at £977. 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 angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550260097
Dimensions7.58 × 4.83 × 3.27 mm
L/W Ratio1.57
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
7.58 mm4.83 mm1.25 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550260097
Side View
Table 58.5%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: LNGDepth 67.7%

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 1
Current: £330 GBP|Low: £147 GBP|High: £977 GBP|Avg: £539 GBP|+3.5%
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
Taylor and Hart
November 6, 2026
Retailer 9£147 GBP
Retailer 13£165 GBP
Retailer 7£171 GBP
Retailer 8£182 GBP
Retailer 12£317 GBP
Retailer 1£330 GBP
Retailer 3£418 GBP
Retailer 10£420 GBP
Retailer 5£488 GBP
Retailer 11£588 GBP
Retailer 4£756 GBP
Retailer 2£817 GBP
Retailer 6£850 GBP
Taylor and Hart£977 GBP

35 data points across 14 retailers

10 retailers£147 GBP to £977 GBP

A
Cheapest Retailer
-
£147 GBP
A
Retailer 2
-
£171 GBP
View
A
Retailer 3
-
£182 GBP
View
B+
Retailer 4
-
£317 GBP
View
A
Retailer 5
-
£330 GBP
View
B+
Retailer 6
-
£420 GBP
View
B
Retailer 7
-
£588 GBP
View
B
Retailer 8
-
£756 GBP
View
B
Retailer 9
-
£850 GBP
View
Most Expensive
B
Taylor and Hart
B6R5PO8 · Nov 6
£977 GBP
$1,315 USD
View
9 more retailers have this diamond
Prices start from £147 GBPSave up to £830 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
1.25ct Emerald
£147 GBP