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Cushion|Lab Grown|IGI

3.06ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG818686311

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG818686311

Diamond specifications and retailer prices

From €765 EUR
$855 USD
As of October 31, 2026
Save €3,442 EUR (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,207 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686311 or 818686311. Listed at 18 retailers as of October 31, 2026, with prices from €765 to €4,207, a €3,442 spread on the same certified stone. Brilliant Earth lists it at €4,207. 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

3.06
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686311
Dimensions9.86 × 7.40 × 4.96 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm7.40 mm3.06 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686311
Side View
Table 60.0%Crown 45.5°Girdle: STK-THKPavilion 41.3°Culet: LargeDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €4,207 EUR|Low: €646 EUR|High: €5,272 EUR|Avg: €1,572 EUR|-20.2%
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
November 1, 2026
Retailer 4€646 EUR
Retailer 13€765 EUR
Retailer 14€866 EUR
Retailer 8€970 EUR
Retailer 2€1,002 EUR
Retailer 5€1,124 EUR
Retailer 10€1,365 EUR
Retailer 12€1,461 EUR
Retailer 3€1,882 EUR
Retailer 15€1,933 EUR
Retailer 6€2,041 EUR
Retailer 9€2,063 EUR
Retailer 7€2,092 EUR
Retailer 11€2,809 EUR
Brilliant Earth€4,207 EUR

41 data points across 15 retailers

18 retailers€765 EUR to €4,207 EUR

Retailer 1
-
€521 EUR
$582 USD
Price last confirmed 33 days ago
Retailer 2
-
€584 EUR
$652 USD
View
Price last confirmed 39 days ago
Retailer 3
-
€638 EUR
$713 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
€765 EUR
$855 USD
View
A
Retailer 5
-
€866 EUR
$968 USD
View
A
Retailer 6
-
€970 EUR
View
A
Retailer 7
-
€1,002 EUR
£881 GBP
View
A
Retailer 8
-
€1,124 EUR
$1,256 USD
View
B+
Retailer 9
-
€1,365 EUR
A$2,346 AUD
View
B+
Retailer 10
-
€1,461 EUR
$1,632 USD
View
Retailer 11
-
€1,700 EUR
$1,899 USD
View
Price last confirmed 32 days ago
Retailer 12
-
€1,882 EUR
£1,656 GBP
View
Price last confirmed 16 days ago
Retailer 13
-
€1,933 EUR
A$3,322 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
€2,041 EUR
SGD 3,081 SGD
View
B+
Retailer 15
-
€2,063 EUR
$2,305 USD
View
B+
Retailer 16
-
€2,092 EUR
$2,338 USD
View
B
Retailer 17
-
€2,809 EUR
£2,471 GBP
View
Most Expensive
B
Brilliant Earth
21728218A · Oct 31
€4,207 EUR
$4,700 USD
View
17 more retailers have this diamond
Prices start from €765 EURSave up to €3,442 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
3.06ct Cushion
€765 EUR