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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780663284

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780663284

Diamond specifications and retailer prices

From €1,960 EUR
$2,190 USD
As of October 30, 2026
Save €6,861 EUR (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €8,821 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663284 or 780663284. Listed at 14 retailers as of October 30, 2026, with prices from €1,960 to €8,821, a €6,861 spread on the same certified stone. Blue Nile lists it at €8,821. 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

3.10
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663284
Dimensions9.99 × 7.87 × 5.12 mm
L/W Ratio1.27
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
9.99 mm7.87 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663284
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 65.1%

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 30
Current: €8,821 EUR|Low: €1,960 EUR|High: €19,601 EUR|Avg: €5,988 EUR|-55.0%
Blue Nile
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
October 31, 2026
Retailer 9€1,960 EUR
Retailer 8€2,191 EUR
Retailer 12€2,475 EUR
Retailer 7€2,713 EUR
Retailer 4€3,090 EUR
Retailer 2€3,141 EUR
Retailer 13€4,582 EUR
Retailer 10€4,816 EUR
Retailer 3€5,360 EUR
Retailer 6€5,773 EUR
Retailer 14€5,883 EUR
Retailer 11€6,910 EUR
Retailer 5€8,342 EUR
Blue Nile€8,821 EUR

35 data points across 14 retailers

14 retailers€1,960 EUR to €8,821 EUR

A
Cheapest Retailer
-
€1,960 EUR
$2,190 USD
A
Retailer 2
-
€2,191 EUR
$2,448 USD
View
A
Retailer 3
-
€2,475 EUR
HK$21,600 HKD
View
A
Retailer 4
-
€2,713 EUR
£2,387 GBP
View
A
Retailer 5
-
€3,090 EUR
$3,452 USD
View
A
Retailer 6
-
€3,141 EUR
View
B+
Retailer 7
-
€4,582 EUR
ZAR 82,691 ZAR
View
B+
Retailer 8
-
€4,816 EUR
$5,380 USD
View
B+
Retailer 9
-
€5,360 EUR
$5,988 USD
View
Retailer 10
-
€5,773 EUR
$6,450 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
€5,883 EUR
£5,175 GBP
View
B+
Retailer 12
-
€6,910 EUR
$7,720 USD
View
B
Retailer 13
-
€8,342 EUR
$9,320 USD
View
Most Expensive
B
Blue Nile
29313962 · Oct 31
€8,821 EUR
$9,855 USD
View
13 more retailers have this diamond
Prices start from €1,960 EURSave up to €6,861 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
3.10ct Cushion
€1,960 EUR