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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 €762 EUR
$855 USD
As of November 2, 2026
Save €3,428 EUR (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,190 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 €762 to €4,190, a €3,428 spread on the same certified stone. Brilliant Earth lists it at €4,190. 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
Colour
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: Nov 2
Current: €4,190 EUR|Low: €644 EUR|High: €5,251 EUR|Avg: €1,571 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 2, 2026
Retailer 4€644 EUR
Retailer 13€762 EUR
Retailer 14€863 EUR
Retailer 8€966 EUR
Retailer 2€1,006 EUR
Retailer 5€1,120 EUR
Retailer 10€1,360 EUR
Retailer 12€1,455 EUR
Retailer 3€1,875 EUR
Retailer 15€1,925 EUR
Retailer 6€2,033 EUR
Retailer 9€2,055 EUR
Retailer 7€2,084 EUR
Retailer 11€2,798 EUR
Brilliant Earth€4,190 EUR

41 data points across 15 retailers

18 retailers€762 EUR to €4,190 EUR

Retailer 1
-
€519 EUR
$582 USD
Price last confirmed 34 days ago
Retailer 2
-
€581 EUR
$652 USD
View
Price last confirmed 39 days ago
Retailer 3
-
€636 EUR
$713 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
€762 EUR
$855 USD
View
A
Retailer 5
-
€863 EUR
$968 USD
View
A
Retailer 6
-
€966 EUR
View
A
Retailer 7
-
€1,006 EUR
£888 GBP
View
A
Retailer 8
-
€1,120 EUR
$1,256 USD
View
B+
Retailer 9
-
€1,360 EUR
A$2,346 AUD
View
B+
Retailer 10
-
€1,455 EUR
$1,632 USD
View
Retailer 11
-
€1,693 EUR
$1,899 USD
View
Price last confirmed 33 days ago
Retailer 12
-
€1,875 EUR
£1,656 GBP
View
Price last confirmed 17 days ago
Retailer 13
-
€1,925 EUR
A$3,322 AUD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
€2,033 EUR
SGD 3,081 SGD
View
B+
Retailer 15
-
€2,055 EUR
$2,305 USD
View
B+
Retailer 16
-
€2,084 EUR
$2,338 USD
View
B
Retailer 17
-
€2,798 EUR
£2,471 GBP
View
Most Expensive
B
Brilliant Earth
21728218A · Oct 31
€4,190 EUR
$4,700 USD
View
17 more retailers have this diamond
Prices start from €762 EURSave up to €3,428 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
€762 EUR