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Cushion|Lab Grown|IGI

3.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG812619683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812619683

Diamond specifications and retailer prices

From €355 EUR
As of November 6, 2026
Save €1,938 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,293 EUR at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG812619683 or 812619683. Listed at 15 retailers as of November 6, 2026, with prices from €355 to €2,293, a €1,938 spread on the same certified stone. Brilliant Earth lists it at €2,293. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812619683
Dimensions10.28 × 7.42 × 4.67 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.28 mm7.42 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812619683
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.9%

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: Nov 6
Current: €2,293 EUR|Low: €355 EUR|High: €2,293 EUR|Avg: €947 EUR
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 6, 2026
Retailer 12€355 EUR
Retailer 6€435 EUR
Retailer 8€479 EUR
Retailer 11€528 EUR
Retailer 2€607 EUR
Retailer 13€632 EUR
Retailer 7€682 EUR
Retailer 9€702 EUR
Retailer 14€926 EUR
Retailer 4€983 EUR
Retailer 15€989 EUR
Retailer 3€1,260 EUR
Retailer 10€1,535 EUR
Retailer 5€1,747 EUR
Brilliant Earth€2,293 EUR

30 data points across 15 retailers

15 retailers€355 EUR to €2,293 EUR

A
Cheapest Retailer
-
€355 EUR
Final sale: no returns
A
Retailer 2
-
€435 EUR
View
A
Retailer 3
-
€479 EUR
View
A
Retailer 4
-
€528 EUR
View
A
Retailer 5
-
€607 EUR
View
B+
Retailer 6
-
€632 EUR
View
Retailer 7
-
€682 EUR
View
Price last confirmed 12 days ago
A
Retailer 8
-
€702 EUR
View
A
Retailer 9
-
€926 EUR
View
A
Retailer 10
-
€983 EUR
View
B+
Retailer 11
-
€989 EUR
View
B+
Retailer 12
-
€1,260 EUR
View
B+
Retailer 13
-
€1,535 EUR
View
Retailer 14
-
€1,747 EUR
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20319639A · Nov 6
€2,293 EUR
$2,560 USD
View
14 more retailers have this diamond
Prices start from €355 EURSave up to €1,938 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
3.05ct Cushion
€355 EUR