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Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG790683937

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG790683937

Diamond specifications and retailer prices

From €1,058 EUR
As of November 4, 2026
Save €3,241 EUR (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,298 EUR at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790683937 or 790683937. Listed at 13 retailers as of November 4, 2026, with prices from €1,058 to €4,298, a €3,241 spread on the same certified stone. Taylor and Hart lists it at €4,298. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790683937
Dimensions7.82 × 5.78 × 3.53 mm
L/W Ratio1.35
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
7.82 mm5.78 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790683937
Side View
Table 58.0%Crown 37.4°Girdle: MED-THKPavilion 38.5°Culet: LargeDepth 61.1%

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: €3,932 EUR|Low: €1,016 EUR|High: €3,995 EUR|Avg: €1,865 EUR|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9€1,058 EUR
Retailer 3€1,151 EUR
Retailer 2€1,227 EUR
Retailer 10€1,227 EUR
Retailer 6€1,279 EUR
Retailer 7€1,381 EUR
Retailer 8€1,755 EUR
Retailer 5€1,762 EUR
Retailer 12€2,300 EUR
Retailer 11€2,350 EUR
Retailer 4€2,960 EUR
Retailer 1€3,932 EUR

44 data points across 12 retailers

13 retailers€1,058 EUR to €4,298 EUR

A
Cheapest Retailer
-
€1,058 EUR
B+
Retailer 2
-
€1,151 EUR
View
Retailer 3
-
€1,227 EUR
View
Price last confirmed 24 days ago
B+
Retailer 4
-
€1,227 EUR
View
B+
Retailer 5
-
€1,279 EUR
View
Final sale: no returns
B+
Retailer 6
-
€1,381 EUR
View
B+
Retailer 7
-
€1,755 EUR
View
B+
Retailer 8
-
€1,762 EUR
View
B
Retailer 9
-
€2,300 EUR
View
B
Retailer 10
-
€2,350 EUR
View
B
Retailer 11
-
€2,960 EUR
View
B
Retailer 12
-
€3,932 EUR
View
Most Expensive
B
Taylor and Hart
3KZQ333 · Nov 4
€4,298 EUR
$4,824 USD
View
12 more retailers have this diamond
Prices start from €1,058 EURSave up to €3,241 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
€1,058 EUR