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Cushion|Lab Grown|IGI

3.05ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG813655575

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813655575

Diamond specifications and retailer prices

From €685 EUR
$765 USD
As of October 31, 2026
Save €3,558 EUR (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €4,243 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG813655575 or 813655575. Listed at 9 retailers as of October 31, 2026, with prices from €685 to €4,243, a €3,558 spread on the same certified stone. Do Amore Diamonds lists it at €4,243. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813655575
Dimensions10.12 × 7.40 × 4.91 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.12 mm7.40 mm3.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813655575
Side View
Table 62.0%Crown 30.3°Girdle: MED-THKPavilion 32.5°Culet: NoneDepth 66.4%

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 31
Current: €4,243 EUR|Low: €593 EUR|High: €4,243 EUR|Avg: €1,301 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8€593 EUR
Retailer 4€607 EUR
Retailer 7€685 EUR
Retailer 10€785 EUR
Retailer 12€829 EUR
Retailer 5€892 EUR
Retailer 3€1,010 EUR
Retailer 6€1,015 EUR
Retailer 11€1,103 EUR
Retailer 9€1,465 EUR
Retailer 2€2,841 EUR
Do Amore Diamonds€4,243 EUR

31 data points across 12 retailers

9 retailers€685 EUR to €4,243 EUR

Retailer 1
-
€593 EUR
$662 USD
Price last confirmed 16 days ago
A
Retailer 2
-
€685 EUR
$765 USD
View
B+
Retailer 3
-
€785 EUR
$877 USD
View
A
Retailer 4
-
€892 EUR
£785 GBP
View
A
Retailer 5
-
€1,015 EUR
£893 GBP
View
B+
Retailer 6
-
€1,103 EUR
$1,232 USD
View
B+
Retailer 7
-
€1,465 EUR
$1,637 USD
View
B
Retailer 8
-
€2,841 EUR
£2,499 GBP
View
Most Expensive
B
Do Amore Diamonds
27-7D1B39CDE · Oct 31
€4,243 EUR
$4,740 USD
View
8 more retailers have this diamond
Prices start from €685 EURSave up to €3,558 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
€685 EUR