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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 €369 EUR
$414 USD
As of November 1, 2026
Save €1,578 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,948 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 October 27, 2026, with prices from €369 to €1,948, a €1,578 spread on the same certified stone. Queensmith lists it at €1,948. 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
Color
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

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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 1
Current: €748 EUR|Low: €355 EUR|High: €1,703 EUR|Avg: €873 EUR|+1.9%
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 2, 2026
Retailer 11€369 EUR
Retailer 12€413 EUR
Retailer 5€414 EUR
Retailer 3€458 EUR
Retailer 14€458 EUR
Retailer 9€588 EUR
Retailer 13€615 EUR
Retailer 1€748 EUR
Retailer 8€1,117 EUR
Retailer 10€1,285 EUR
Retailer 6€1,332 EUR
Retailer 4€1,457 EUR
Retailer 2€1,473 EUR
Retailer 7€1,683 EUR

44 data points across 14 retailers

18 retailers€369 EUR to €1,948 EUR

A
Cheapest Retailer
-
€369 EUR
$414 USD
A
Retailer 2
-
€413 EUR
$463 USD
View
Final sale: no returns
A
Retailer 3
-
€414 EUR
$464 USD
View
A
Retailer 4
-
€458 EUR
$514 USD
View
Retailer 5
-
€458 EUR
$514 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€588 EUR
$660 USD
View
B+
Retailer 7
-
€615 EUR
$690 USD
View
B+
Retailer 8
-
€636 EUR
$713 USD
View
B+
Retailer 9
-
€748 EUR
£661 GBP
View
B
Retailer 10
-
€1,117 EUR
A$1,927 AUD
View
B
Retailer 11
-
€1,285 EUR
$1,441 USD
View
B
Retailer 12
-
€1,332 EUR
£1,176 GBP
View
B
Retailer 13
-
€1,457 EUR
SGD 2,208 SGD
View
B
Retailer 14
-
€1,473 EUR
$1,652 USD
View
B
Retailer 15
-
€1,503 EUR
$1,686 USD
View
B
Retailer 16
-
€1,674 EUR
$1,878 USD
View
B
Retailer 17
-
€1,683 EUR
£1,486 GBP
View
Most Expensive
B
Queensmith
LG786634346 · Oct 27
€1,948 EUR
£1,720 GBP
View
17 more retailers have this diamond
Prices start from €369 EURSave up to €1,578 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
€369 EUR