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Cushion|Lab Grown|IGI

3.10ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG780663587

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG780663587

Diamond specifications and retailer prices

From €1,960 EUR
$2,190 USD
As of October 30, 2026
Save €6,382 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €8,342 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG780663587 or 780663587. Listed at 13 retailers as of October 29, 2026, with prices from €1,960 to €8,342, a €6,382 spread on the same certified stone. Brilliant Earth lists it at €8,342. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.10
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663587
Dimensions8.59 × 8.54 × 5.54 mm
L/W Ratio1.01
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
8.59 mm8.54 mm3.10 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663587
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €8,342 EUR|Low: €1,960 EUR|High: €11,795 EUR|Avg: €5,376 EUR|-29.0%
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
October 31, 2026
Retailer 8€1,960 EUR
Retailer 7€2,191 EUR
Retailer 11€2,475 EUR
Retailer 6€2,713 EUR
Retailer 4€3,090 EUR
Retailer 2€3,141 EUR
Retailer 12€4,582 EUR
Retailer 9€4,816 EUR
Retailer 3€5,360 EUR
Retailer 5€5,773 EUR
Retailer 13€5,883 EUR
Retailer 10€6,910 EUR
Brilliant Earth€8,342 EUR

37 data points across 13 retailers

13 retailers€1,960 EUR to €8,342 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
Most Expensive
B
Brilliant Earth
20870143Y · Oct 29
€8,342 EUR
$9,320 USD
View
12 more retailers have this diamond
Prices start from €1,960 EURSave up to €6,382 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