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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG786634346

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG786634346

Diamond specifications and retailer prices

From €367 EUR
As of November 4, 2026
Save €1,307 EUR (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,939 EUR at Queensmith · As of October 27, 2026
View at Queensmith

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786634346 or 786634346. Listed at 18 retailers as of November 3, 2026, with a 356% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786634346
Dimensions7.01 × 6.41 × 3.88 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeLarge
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
7.01 mm6.41 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786634346
Side View
Table 53.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: LargeDepth 60.5%

Caratlytics Score

How it works →
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: €743 EUR|Low: €353 EUR|High: €1,695 EUR|Avg: €870 EUR|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 11€367 EUR
Retailer 12€411 EUR
Retailer 5€412 EUR
Retailer 3€456 EUR
Retailer 14€456 EUR
Retailer 9€586 EUR
Retailer 13€612 EUR
Retailer 1€743 EUR
Retailer 8€1,111 EUR
Retailer 10€1,279 EUR
Retailer 6€1,325 EUR
Retailer 4€1,449 EUR
Retailer 2€1,466 EUR
Retailer 7€1,675 EUR

44 data points across 14 retailers

18 retailers€367 EUR to €1,675 EUR

A
Cheapest Retailer
-
€367 EUR
A
Retailer 2
-
€411 EUR
View
Final sale: no returns
A
Retailer 3
-
€412 EUR
View
A
Retailer 4
-
€456 EUR
View
Retailer 5
-
€456 EUR
View
Price last confirmed 11 days ago
B+
Retailer 6
-
€586 EUR
View
B+
Retailer 7
-
€612 EUR
View
B+
Retailer 8
-
€633 EUR
View
B+
Retailer 9
-
€743 EUR
View
B
Retailer 10
-
€1,111 EUR
View
B
Retailer 11
-
€1,279 EUR
View
B
Retailer 12
-
€1,325 EUR
View
B
Retailer 13
-
€1,449 EUR
View
B
Retailer 14
-
€1,466 EUR
View
B
Retailer 15
-
€1,496 EUR
View
B
Retailer 16
-
€1,666 EUR
View
B
Retailer 17
-
€1,675 EUR
View
Most Expensive
Queensmith
LG786634346 · Oct 27
€1,939 EUR
£1,720 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from €367 EURSave up to €1,307 EUR

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
1.28ct Cushion
€367 EUR