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Cushion|Lab Grown|IGI

1.29ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG778662768

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG778662768

Diamond specifications and retailer prices

From £205 GBP
As of October 29, 2026
Save £560 GBP (73%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £765 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778662768 or 778662768. Listed at 5 retailers as of October 29, 2026, with prices from £205 to £765, a £560 spread on the same certified stone. MOH London lists it at £765. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778662768
Dimensions7.54 × 5.31 × 3.49 mm
L/W Ratio1.42
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
7.54 mm5.31 mm1.29 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778662768
Side View
Table 71.0%Crown 35°Girdle: MED-THKPavilion 30.7°Culet: NoneDepth 65.7%

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 29
Current: £765 GBP|Low: £122 GBP|High: £907 GBP|Avg: £441 GBP|-7.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8£122 GBP
Retailer 2£205 GBP
Retailer 5£289 GBP
Retailer 7£306 GBP
Retailer 9£334 GBP
Retailer 6£352 GBP
Retailer 4£397 GBP
Retailer 10£489 GBP
Retailer 11£627 GBP
MOH London£765 GBP
Retailer 3£907 GBP

33 data points across 11 retailers

5 retailers£205 GBP to £765 GBP

A
Cheapest Retailer
-
£205 GBP
B+
Retailer 2
-
£289 GBP
$384 USD
View
A
Retailer 3
-
£352 GBP
$468 USD
View
A
Retailer 4
-
£397 GBP
A$811 AUD
View
Most Expensive
B
MOH London
LG778662768 · Oct 29
£765 GBP
View
4 more retailers have this diamond
Prices start from £205 GBPSave up to £560 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
1.29ct Cushion
£205 GBP