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Cushion|Lab Grown|IGI

1.29ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG778614895

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG778614895

Diamond specifications and retailer prices

From £246 GBP
As of November 4, 2026
Save £1,236 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,482 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778614895 or 778614895. Listed at 15 retailers as of November 2, 2026, with prices from £246 to £1,482, a £1,236 spread on the same certified stone. Brilliant Earth lists it at £1,482. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778614895
Dimensions6.32 × 6.28 × 4.22 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
6.32 mm6.28 mm1.29 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778614895
Side View
Table 60.0%Crown 36.7°Girdle: MED-STKPavilion 38°Culet: NoneDepth 67.2%

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: Nov 4
Current: £1,482 GBP|Low: £196 GBP|High: £1,482 GBP|Avg: £536 GBP|+1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12£196 GBP
Retailer 10£217 GBP
Retailer 9£249 GBP
Retailer 3£293 GBP
Retailer 7£356 GBP
Retailer 2£375 GBP
Retailer 6£407 GBP
Retailer 4£453 GBP
Retailer 8£530 GBP
Retailer 5£870 GBP
Retailer 11£970 GBP
Brilliant Earth£1,482 GBP

40 data points across 12 retailers

15 retailers£246 GBP to £1,482 GBP

Retailer 1
-
£217 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
£246 GBP
View
A
Retailer 3
-
£293 GBP
View
A
Retailer 4
-
£356 GBP
View
A
Retailer 5
-
£375 GBP
View
A
Retailer 6
-
£407 GBP
View
A
Retailer 7
-
£453 GBP
View
B+
Retailer 8
-
£489 GBP
View
Retailer 9
-
£530 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£701 GBP
View
B+
Retailer 11
-
£736 GBP
View
Retailer 12
-
£752 GBP
View
Price last confirmed 57 days ago
B+
Retailer 13
-
£870 GBP
View
B
Retailer 14
-
£970 GBP
View
Most Expensive
B
Brilliant Earth
17956413A · Nov 2
£1,482 GBP
$2,000 USD
View
14 more retailers have this diamond
Prices start from £246 GBPSave up to £1,236 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
£246 GBP