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Cushion|Lab Grown|IGI

3.20ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG685590243

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG685590243

Diamond specifications and retailer prices

From €435 EUR
As of November 6, 2026
Save €1,907 EUR (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,342 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.2ct lab-grown cushion diamond

This 3.2ct 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 LG685590243 or 685590243. Listed at 10 retailers as of November 1, 2026, with prices from €435 to €2,342, a €1,907 spread on the same certified stone. Rare Carat lists it at €2,342. 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

3.20
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590243
Dimensions8.78 × 8.63 × 5.60 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.78 mm8.63 mm3.20 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590243
Side View
Table 64.0%Crown 37.4°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
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: €2,342 EUR|Low: €435 EUR|High: €4,657 EUR|Avg: €1,451 EUR
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10€435 EUR
Retailer 5€471 EUR
Retailer 8€524 EUR
Retailer 12€622 EUR
Retailer 2€626 EUR
Retailer 9€676 EUR
Retailer 6€689 EUR
Retailer 11€991 EUR
Retailer 7€1,508 EUR
Rare Carat€2,342 EUR
Retailer 3€3,616 EUR
Retailer 4€4,657 EUR

10 data points across 12 retailers

10 retailers€435 EUR to €2,342 EUR

A
Cheapest Retailer
-
€435 EUR
A
Retailer 2
-
€471 EUR
View
A
Retailer 3
-
€524 EUR
View
B+
Retailer 4
-
€622 EUR
View
A
Retailer 5
-
€626 EUR
View
A
Retailer 6
-
€676 EUR
View
A
Retailer 7
-
€689 EUR
View
A
Retailer 8
-
€991 EUR
View
B+
Retailer 9
-
€1,508 EUR
View
Most Expensive
B
Rare Carat
KI2435902KF685 · Nov 1
€2,342 EUR
$2,615 USD
View
9 more retailers have this diamond
Prices start from €435 EURSave up to €1,907 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
3.20ct Cushion
€435 EUR