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Cushion|Lab Grown|IGI

1.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG783648800

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG783648800

Diamond specifications and retailer prices

From €1,005 EUR
As of November 4, 2026
Save €1,107 EUR (52%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €2,112 EUR at Brilliant Earth · As of November 4, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG783648800 or 783648800. Listed at 5 retailers as of November 4, 2026, with prices from €1,005 to €2,112, a €1,107 spread on the same certified stone. Brilliant Earth lists it at €2,112. 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 angle36.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783648800
Dimensions8.12 × 5.54 × 3.47 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
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
8.12 mm5.54 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783648800
Side View
Table 60.0%Crown 36.3°Girdle: THN-STKPavilion 33.7°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €2,112 EUR|Low: €637 EUR|High: €3,029 EUR|Avg: €1,634 EUR|-30.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 6€637 EUR
Retailer 5€1,005 EUR
Retailer 9€1,029 EUR
Retailer 2€1,142 EUR
Retailer 11€1,278 EUR
Retailer 4€1,284 EUR
Retailer 10€1,327 EUR
Retailer 12€1,517 EUR
Retailer 7€1,736 EUR
Brilliant Earth€2,112 EUR
Retailer 8€2,851 EUR
Retailer 3€2,863 EUR

17 data points across 12 retailers

5 retailers€1,005 EUR to €2,112 EUR

Retailer 1
-
€637 EUR
Price last confirmed 24 days ago
B+
Retailer 2
-
€1,005 EUR
View
B+
Retailer 3
-
€1,142 EUR
View
Retailer 4
-
€1,736 EUR
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
21401971Y · Nov 4
€2,112 EUR
$2,370 USD
View
4 more retailers have this diamond
Prices start from €1,005 EURSave up to €1,107 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.

B+
1.28ct Cushion
€1,005 EUR