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Cushion|Lab Grown|IGI

1.71ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG845699641

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG845699641

Diamond specifications and retailer prices

From £436 GBP
$580 USD
As of October 28, 2026
Save £1,590 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,026 GBP at MOH London · As of October 29, 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 very-good cut grade and certified by IGI LG845699641 or 845699641. Listed at 11 retailers as of October 28, 2026, with prices from £436 to £2,026, a £1,590 spread on the same certified stone. MOH London lists it at £2,026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845699641
Dimensions8.55 × 6.54 × 3.94 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
8.55 mm6.54 mm1.71 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845699641
Side View
Table 61.0%Crown 37.3°Girdle: STK-THKPavilion 38.9°Culet: LargeDepth 60.2%

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 28
Current: £2,026 GBP|Low: £436 GBP|High: £2,026 GBP|Avg: £1,154 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9£436 GBP
Retailer 5£556 GBP
Retailer 2£746 GBP
Retailer 6£749 GBP
Retailer 4£830 GBP
Retailer 8£1,009 GBP
Retailer 3£1,529 GBP
Retailer 10£1,570 GBP
Retailer 7£1,659 GBP
Retailer 11£1,790 GBP
MOH London£2,026 GBP

7 data points across 11 retailers

11 retailers£436 GBP to £2,026 GBP

A
Cheapest Retailer
-
£436 GBP
$580 USD
Final sale: no returns
A
Retailer 2
-
£556 GBP
$740 USD
View
A
Retailer 3
-
£746 GBP
View
A
Retailer 4
-
£749 GBP
$997 USD
View
A
Retailer 5
-
£830 GBP
ZAR 17,848 ZAR
View
A
Retailer 6
-
£1,009 GBP
$1,344 USD
View
B
Retailer 7
-
£1,529 GBP
SGD 2,751 SGD
View
B
Retailer 8
-
£1,570 GBP
$2,091 USD
View
B+
Retailer 9
-
£1,659 GBP
$2,210 USD
View
B
Retailer 10
-
£1,790 GBP
$2,384 USD
View
Most Expensive
B
MOH London
LG845699641 · Oct 29
£2,026 GBP
View
10 more retailers have this diamond
Prices start from £436 GBPSave up to £1,590 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
£436 GBP