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Cushion|Lab Grown|IGI

1.28ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG773614775

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG773614775

Diamond specifications and retailer prices

From £2,315 GBP
$3,125 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: £2,315 GBP at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG773614775 or 773614775. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773614775
Dimensions7.63 × 5.63 mm
L/W Ratio1.36
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
7.63 mm5.63 mm1.28 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773614775
Side View
Table 60.0%Crown 31.9°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
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Price History

Last verified: Nov 4
Current: £664 GBP|Low: £661 GBP|High: £2,315 GBP|Avg: £1,131 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Shane Co
September 18, 2026
Retailer 1£664 GBP
Retailer 3£667 GBP
Retailer 2£915 GBP
Retailer 4£1,287 GBP
Retailer 5£1,555 GBP
Shane Co£2,315 GBP

13 data points across 6 retailers

1 retailer

B
Shane Co
26D0VJL · Nov 4
£2,315 GBP
$3,125 USD
View

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
1.28ct Cushion
£2,315 GBP