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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 €1,062 EUR
$1,187 USD
As of October 29, 2026
Save €3,256 EUR (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,318 EUR at Taylor and Hart · As of October 31, 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 October 29, 2026, with prices from €1,062 to €4,318, a €3,256 spread on the same certified stone. Taylor and Hart lists it at €4,318. 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
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: Oct 29
Current: €1,788 EUR|Low: €1,020 EUR|High: €4,014 EUR|Avg: €1,874 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9€1,062 EUR
Retailer 3€1,156 EUR
Retailer 2€1,233 EUR
Retailer 10€1,233 EUR
Retailer 8€1,285 EUR
Retailer 5€1,387 EUR
Retailer 6€1,763 EUR
Retailer 1€1,788 EUR
Retailer 12€2,310 EUR
Retailer 11€2,361 EUR
Retailer 4€2,974 EUR
Retailer 7€3,966 EUR

42 data points across 12 retailers

13 retailers€1,062 EUR to €4,318 EUR

A
Cheapest Retailer
-
€1,062 EUR
$1,187 USD
B+
Retailer 2
-
€1,156 EUR
$1,292 USD
View
Retailer 3
-
€1,233 EUR
$1,377 USD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
€1,233 EUR
$1,377 USD
View
B+
Retailer 5
-
€1,285 EUR
$1,436 USD
View
Final sale: no returns
B+
Retailer 6
-
€1,387 EUR
$1,550 USD
View
B+
Retailer 7
-
€1,763 EUR
$1,970 USD
View
B+
Retailer 8
-
€1,788 EUR
£1,573 GBP
View
B
Retailer 9
-
€2,310 EUR
$2,581 USD
View
B
Retailer 10
-
€2,361 EUR
$2,638 USD
View
B
Retailer 11
-
€2,974 EUR
£2,616 GBP
View
B
Retailer 12
-
€3,966 EUR
£3,489 GBP
View
Most Expensive
B
Taylor and Hart
3KZQ333 · Oct 31
€4,318 EUR
$4,824 USD
View
12 more retailers have this diamond
Prices start from €1,062 EURSave up to €3,256 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
€1,062 EUR