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Cushion|Lab Grown|IGI

1.71ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG845699636

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG845699636

Diamond specifications and retailer prices

From £746 GBP
As of October 29, 2026
Save £1,272 GBP (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,018 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG845699636 or 845699636. Listed at 7 retailers as of October 26, 2026, with prices from £746 to £2,018, a £1,272 spread on the same certified stone. MOH London lists it at £2,018. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845699636
Dimensions8.43 × 6.42 × 3.88 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.43 mm6.42 mm1.71 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845699636
Side View
Table 59.0%Crown 39.2°Girdle: MED-STKPavilion 37.1°Culet: LargeDepth 60.4%

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: Oct 29
Current: £2,018 GBP|Low: £737 GBP|High: £2,018 GBP|Avg: £1,203 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2£746 GBP
Retailer 7£749 GBP
Retailer 3£830 GBP
Retailer 5£1,009 GBP
Retailer 6£1,570 GBP
Retailer 4£1,790 GBP
MOH London£2,018 GBP

8 data points across 7 retailers

7 retailers£746 GBP to £2,018 GBP

A
Cheapest Retailer
-
£746 GBP
A
Retailer 2
-
£749 GBP
$997 USD
View
A
Retailer 3
-
£830 GBP
ZAR 17,848 ZAR
View
A
Retailer 4
-
£1,009 GBP
$1,344 USD
View
B+
Retailer 5
-
£1,570 GBP
$2,091 USD
View
B+
Retailer 6
-
£1,790 GBP
$2,384 USD
View
Most Expensive
B
MOH London
LG845699636 · Oct 26
£2,018 GBP
View
6 more retailers have this diamond
Prices start from £746 GBPSave up to £1,272 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
1.71ct Cushion
£746 GBP