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Pear|Lab Grown|IGI

1.09ct E SI1 Pear Lab Grown Diamond

EX • E/SI1 • IGI LG645400991

Shape and cutting style on the report: Pear brilliant

Certificate IGI LG645400991

Diamond specifications and retailer prices

From £143 GBP
HK$1,500 HKD
As of October 30, 2026
Save £97 GBP (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £240 GBP at Adiamor · As of October 30, 2026
View at Adiamor

About this 1.09ct lab-grown pear diamond

This 1.09ct lab-grown pear sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG645400991 or 645400991. Listed at 5 retailers as of October 30, 2026, with prices from £143 to £240, a £97 spread on the same certified stone. Adiamor lists it at £240. 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

1.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645400991
Dimensions9.24 × 5.67 × 3.59 mm
L/W Ratio1.63
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.24 mm5.67 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645400991
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.3%

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: Oct 30
Current: £240 GBP|Low: £143 GBP|High: £564 GBP|Avg: £275 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£143 GBP
Retailer 2£157 GBP
Retailer 3£203 GBP
Retailer 4£230 GBP
Retailer 7£230 GBP
Adiamor£240 GBP
Retailer 6£316 GBP
Retailer 9£391 GBP
Retailer 8£564 GBP

3 data points across 9 retailers

5 retailers£143 GBP to £240 GBP

A
Cheapest Retailer
-
£143 GBP
HK$1,500 HKD
A
Retailer 2
-
£157 GBP
View
A
Retailer 3
-
£203 GBP
View
B+
Retailer 4
-
£230 GBP
$308 USD
View
Most Expensive
B+
Adiamor
D-82827210 · Oct 30
£240 GBP
$322 USD
View
4 more retailers have this diamond
Prices start from £143 GBPSave up to £97 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
1.09ct Pear
£143 GBP