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Cushion|Lab Grown|IGI

1.61ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG828682072

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG828682072

Diamond specifications and retailer prices

From £681 GBP
$913 USD
As of October 30, 2026
Save £1,237 GBP (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,918 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown cushion diamond

This 1.61ct 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 LG828682072 or 828682072. Listed at 7 retailers as of October 30, 2026, with prices from £681 to £1,918, a £1,237 spread on the same certified stone. Brilliant Earth lists it at £1,918. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828682072
Dimensions6.96 × 6.87 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.96 mm6.87 mm1.61 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828682072
Side View
Table 61.0%Crown 32.8°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,249 GBP|Low: £681 GBP|High: £1,399 GBP|Avg: £1,091 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 22, 2026
Retailer 4£681 GBP
Retailer 3£864 GBP
Retailer 6£1,238 GBP
Retailer 1£1,249 GBP
Retailer 5£1,276 GBP
Retailer 2£1,373 GBP

15 data points across 6 retailers

7 retailers£681 GBP to £1,918 GBP

A
Cheapest Retailer
-
£681 GBP
$913 USD
A
Retailer 2
-
£864 GBP
$1,158 USD
View
Retailer 3
-
£1,238 GBP
A$2,552 AUD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£1,249 GBP
$1,673 USD
View
B+
Retailer 5
-
£1,276 GBP
SGD 2,310 SGD
View
Retailer 6
-
£1,373 GBP
$1,840 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
22138815Y · Oct 31
£1,918 GBP
$2,570 USD
View
6 more retailers have this diamond
Prices start from £681 GBPSave up to £1,237 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
1.61ct Cushion
£681 GBP