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Cushion|Lab Grown|IGI

3.09ct H SI2 Cushion Lab Grown Diamond

EX • H/SI2 • IGI LG12220503

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12220503

Diamond specifications and retailer prices

From €710 EUR
£625 GBP
As of November 1, 2026
Save €2,852 EUR (80%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €3,562 EUR at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12220503 or 12220503. Listed at 6 retailers as of November 1, 2026, with prices from €710 to €3,562, a €2,852 spread on the same certified stone. Do Amore Diamonds lists it at €3,562. 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

3.09
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12220503
Dimensions8.57 × 8.50 × 5.57 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment. Type IIa
Top View
8.57 mm8.50 mm3.09 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12220503
Side View
Table 63.5%Crown 36°Girdle: MED-UNDPavilion 39.3°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €3,562 EUR|Low: €710 EUR|High: €3,562 EUR|Avg: €1,532 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2€710 EUR
Retailer 6€787 EUR
Retailer 5€792 EUR
Retailer 4€821 EUR
Retailer 3€2,434 EUR
Do Amore Diamonds€3,562 EUR

20 data points across 6 retailers

6 retailers€710 EUR to €3,562 EUR

A
Cheapest Retailer
-
€710 EUR
£625 GBP
A
Retailer 2
-
€787 EUR
$879 USD
View
A
Retailer 3
-
€792 EUR
$885 USD
View
B+
Retailer 4
-
€821 EUR
$917 USD
View
B
Retailer 5
-
€2,434 EUR
£2,141 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1413945 · Nov 1
€3,562 EUR
$3,980 USD
View
5 more retailers have this diamond
Prices start from €710 EURSave up to €2,852 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
3.09ct Cushion
€710 EUR