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Cushion|Lab Grown|IGI

1.85ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663942

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663942

Diamond specifications and retailer prices

From £522 GBP
As of October 30, 2026
Save £2,568 GBP (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,090 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.85ct lab-grown cushion diamond

This 1.85ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663942 or 846663942. Listed at 8 retailers as of October 30, 2026, with prices from £522 to £3,090, a £2,568 spread on the same certified stone. Brilliant Earth lists it at £3,090. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663942
Dimensions8.00 × 6.64 × 4.42 mm
L/W Ratio1.20
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
8.00 mm6.64 mm1.85 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663942
Side View
Table 60.0%Crown 34.8°Girdle: STK-VTKPavilion 36.4°Culet: NoneDepth 66.6%

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: £3,090 GBP|Low: £522 GBP|High: £4,426 GBP|Avg: £1,510 GBP|-30.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7£522 GBP
Retailer 2£593 GBP
Retailer 6£763 GBP
Retailer 8£1,152 GBP
Retailer 4£1,175 GBP
Retailer 5£1,720 GBP
Retailer 3£1,794 GBP
Brilliant Earth£3,090 GBP

6 data points across 8 retailers

8 retailers£522 GBP to £3,090 GBP

A
Cheapest Retailer
-
£522 GBP
A
Retailer 2
-
£593 GBP
$795 USD
View
A
Retailer 3
-
£763 GBP
$1,022 USD
View
A
Retailer 4
-
£1,152 GBP
€1,470 EUR
View
A
Retailer 5
-
£1,175 GBP
$1,575 USD
View
B+
Retailer 6
-
£1,720 GBP
$2,304 USD
View
B+
Retailer 7
-
£1,794 GBP
$2,404 USD
View
Most Expensive
B
Brilliant Earth
22319616A · Oct 30
£3,090 GBP
$4,140 USD
View
7 more retailers have this diamond
Prices start from £522 GBPSave up to £2,568 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
1.85ct Cushion
£522 GBP