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Cushion|Lab Grown|IGI

1.16ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG846663372

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663372

Diamond specifications and retailer prices

From £542 GBP
$726 USD
As of October 30, 2026
Save £988 GBP (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,530 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.16ct lab-grown cushion diamond

This 1.16ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663372 or 846663372. Listed at 5 retailers as of October 30, 2026, with prices from £542 to £1,530, a £988 spread on the same certified stone. Brilliant Earth lists it at £1,530. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.16
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663372
Dimensions8.12 × 5.16 × 3.49 mm
L/W Ratio1.57
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
8.12 mm5.16 mm1.16 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663372
Side View
Table 62.0%Crown 33.9°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 67.6%

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 30
Current: £1,530 GBP|Low: £542 GBP|High: £1,545 GBP|Avg: £874 GBP|-1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3£542 GBP
Retailer 2£580 GBP
Retailer 5£609 GBP
Retailer 4£1,477 GBP
Brilliant Earth£1,530 GBP

5 data points across 5 retailers

5 retailers£542 GBP to £1,530 GBP

A
Cheapest Retailer
-
£542 GBP
$726 USD
A
Retailer 2
-
£580 GBP
$777 USD
View
A
Retailer 3
-
£609 GBP
€777 EUR
View
B
Retailer 4
-
£1,477 GBP
View
Most Expensive
B
Brilliant Earth
22319562A · Oct 31
£1,530 GBP
$2,050 USD
View
4 more retailers have this diamond
Prices start from £542 GBPSave up to £988 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
1.16ct Cushion
£542 GBP