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Cushion|Lab Grown|IGI

0.86ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG784669103

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

Certificate IGI LG784669103

Diamond specifications and retailer prices

From £646 GBP
$870 USD
As of November 4, 2026
2 retailers carry this diamond
Most expensive: £646 GBP at Brilliant Earth
View at Brilliant Earth

About this 0.86ct lab-grown cushion diamond

This 0.86ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784669103 or 784669103. Listed at 2 retailers as of November 4, 2026. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.86
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784669103
Dimensions5.32 × 5.29 × 3.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
5.32 mm5.29 mm0.86 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784669103
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 68.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £646 GBP|Low: £331 GBP|High: £2,355 GBP|Avg: £841 GBP|-26.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 3, 2026
Retailer 2£345 GBP
Retailer 5£411 GBP
Retailer 3£456 GBP
Retailer 10£467 GBP
Retailer 9£530 GBP
Retailer 6£562 GBP
Brilliant Earth£646 GBP
Retailer 4£1,039 GBP
Retailer 8£1,045 GBP
Retailer 7£2,355 GBP

40 data points across 10 retailers

2 retailers

Retailer 1
-
£411 GBP
Price last confirmed 70 days ago
Most Expensive
B+
Brilliant Earth
18632795Y · Nov 4
£646 GBP
$870 USD
View
1 more retailer has this diamond

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.

B+
0.86ct Cushion
£646 GBP