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Cushion|Lab Grown|IGI

2.78ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816616094

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816616094

Diamond specifications and retailer prices

From €1,580 EUR
$1,765 USD
As of October 31, 2026
Save €5,142 EUR (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €6,722 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.78ct lab-grown cushion diamond

This 2.78ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816616094 or 816616094. Listed at 16 retailers as of October 30, 2026, with prices from €1,580 to €6,722, a €5,142 spread on the same certified stone. Brilliant Earth lists it at €6,722. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.78
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816616094
Dimensions10.17 × 6.89 × 4.56 mm
L/W Ratio1.48
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
10.17 mm6.89 mm2.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816616094
Side View
Table 64.0%Crown 34.8°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 66.2%

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 31
Current: €6,722 EUR|Low: €1,416 EUR|High: €10,302 EUR|Avg: €3,934 EUR|-34.8%
Brilliant Earth
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
Retailer 16
October 30, 2026
Retailer 8€1,467 EUR
Retailer 13€1,580 EUR
Retailer 16€1,642 EUR
Retailer 9€2,010 EUR
Retailer 3€2,251 EUR
Retailer 4€2,418 EUR
Retailer 11€2,729 EUR
Retailer 14€2,819 EUR
Retailer 15€3,438 EUR
Retailer 10€3,676 EUR
Retailer 2€3,912 EUR
Retailer 12€4,602 EUR
Retailer 6€5,009 EUR
Retailer 7€5,554 EUR
Retailer 5€5,747 EUR
Brilliant Earth€6,722 EUR

31 data points across 16 retailers

16 retailers€1,580 EUR to €6,722 EUR

Retailer 1
-
€1,467 EUR
$1,639 USD
Price last confirmed 18 days ago
A
Retailer 2
-
€1,580 EUR
$1,765 USD
View
A
Retailer 3
-
€1,642 EUR
$1,834 USD
View
Final sale: no returns
A
Retailer 4
-
€2,010 EUR
£1,768 GBP
View
A
Retailer 5
-
€2,251 EUR
$2,515 USD
View
A
Retailer 6
-
€2,418 EUR
$2,701 USD
View
A
Retailer 7
-
€2,729 EUR
View
A
Retailer 8
-
€2,819 EUR
$3,149 USD
View
A
Retailer 9
-
€3,438 EUR
£3,024 GBP
View
B+
Retailer 10
-
€3,676 EUR
ZAR 66,342 ZAR
View
B+
Retailer 11
-
€3,912 EUR
$4,371 USD
View
B+
Retailer 12
-
€4,602 EUR
£4,048 GBP
View
B+
Retailer 13
-
€5,009 EUR
$5,596 USD
View
Retailer 14
-
€5,554 EUR
$6,205 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
€5,747 EUR
SGD 8,677 SGD
View
Most Expensive
B
Brilliant Earth
21421918A · Oct 30
€6,722 EUR
$7,510 USD
View
15 more retailers have this diamond
Prices start from €1,580 EURSave up to €5,142 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
2.78ct Cushion
€1,580 EUR