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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG794641717

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG794641717

Diamond specifications and retailer prices

From €263 EUR
$294 USD
As of November 1, 2026
Save €871 EUR (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,423 EUR at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

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 LG794641717 or 794641717. Listed at 17 retailers as of November 1, 2026, with a 331% 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794641717
Dimensions6.35 × 6.31 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.35 mm6.31 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794641717
Side View
Table 63.0%Crown 33.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €282 EUR|Low: €220 EUR|High: €1,134 EUR|Avg: €588 EUR|-0.4%
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
Retailer 15
November 2, 2026
Retailer 7€244 EUR
Retailer 10€263 EUR
Retailer 1€282 EUR
Retailer 12€405 EUR
Retailer 15€422 EUR
Retailer 9€427 EUR
Retailer 8€461 EUR
Retailer 14€579 EUR
Retailer 6€597 EUR
Retailer 13€663 EUR
Retailer 4€843 EUR
Retailer 5€934 EUR
Retailer 3€969 EUR
Retailer 11€991 EUR
Retailer 2€1,134 EUR

26 data points across 15 retailers

17 retailers€263 EUR to €1,134 EUR

Retailer 1
-
€244 EUR
$273 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€263 EUR
$294 USD
View
Final sale: no returns
A
Retailer 3
-
€282 EUR
£248 GBP
View
A
Retailer 4
-
€405 EUR
View
A
Retailer 5
-
€422 EUR
$471 USD
View
A
Retailer 6
-
€427 EUR
ZAR 7,711 ZAR
View
A
Retailer 7
-
€461 EUR
£405 GBP
View
B+
Retailer 8
-
€579 EUR
$647 USD
View
A
Retailer 9
-
€597 EUR
A$1,026 AUD
View
B+
Retailer 10
-
€663 EUR
$741 USD
View
B+
Retailer 11
-
€843 EUR
$941 USD
View
B+
Retailer 12
-
€934 EUR
A$1,606 AUD
View
B
Retailer 13
-
€969 EUR
£852 GBP
View
B+
Retailer 14
-
€991 EUR
£872 GBP
View
Retailer 15
-
€1,094 EUR
$1,222 USD
View
Price last confirmed 112 days ago
B
Retailer 16
-
€1,134 EUR
$1,267 USD
View
Most Expensive
Brilliant Earth
19355098A · Oct 24
€1,423 EUR
$1,590 USD
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from €263 EURSave up to €871 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
€263 EUR