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Pear|Lab Grown|IGI

1.80ct E SI1 Pear Lab Grown Diamond

ID • E/SI1 • IGI LG778662550

Shape and cutting style on the report: Pear brilliant

Certificate IGI LG778662550

Diamond specifications and retailer prices

From £231 GBP
HK$2,400 HKD
As of October 30, 2026
Save £843 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,074 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.8ct lab-grown pear diamond

This 1.8ct lab-grown pear sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778662550 or 778662550. Listed at 10 retailers as of October 29, 2026, with prices from £231 to £1,074, a £843 spread on the same certified stone. Brilliant Earth lists it at £1,074. 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

1.80
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778662550
Dimensions10.81 × 6.71 × 4.17 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.81 mm6.71 mm1.80 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778662550
Side View
Table 65.0%Crown 30.6°Girdle: THK-VTKPavilion 41.3°Culet: NoneDepth 62.1%

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: £1,074 GBP|Low: £274 GBP|High: £1,104 GBP|Avg: £579 GBP|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4£344 GBP
Retailer 2£348 GBP
Retailer 3£377 GBP
Retailer 7£402 GBP
Retailer 8£463 GBP
Retailer 5£819 GBP
Retailer 6£867 GBP
Brilliant Earth£1,074 GBP

39 data points across 8 retailers

10 retailers£231 GBP to £1,074 GBP

A
Cheapest Retailer
-
£231 GBP
HK$2,400 HKD
A
Retailer 2
-
£344 GBP
€436 EUR
View
B+
Retailer 3
-
£348 GBP
$464 USD
View
A
Retailer 4
-
£377 GBP
View
B+
Retailer 5
-
£402 GBP
$536 USD
View
B+
Retailer 6
-
£463 GBP
$617 USD
View
B
Retailer 7
-
£693 GBP
$923 USD
View
B
Retailer 8
-
£819 GBP
View
Retailer 9
-
£867 GBP
$1,155 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
18308122A · Oct 29
£1,074 GBP
$1,430 USD
View
9 more retailers have this diamond
Prices start from £231 GBPSave up to £843 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
1.80ct Pear
£231 GBP