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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 $707 AUD
As of November 6, 2026
Save $3,099 AUD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,806 AUD 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 $707 to $3,806, a $3,099 spread on the same certified stone. Rare Carat lists it at $3,806. 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: $3,806 AUD|Low: $707 AUD|High: $7,568 AUD|Avg: $2,358 AUD
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$707 AUD
Retailer 5$766 AUD
Retailer 8$851 AUD
Retailer 12$1,012 AUD
Retailer 2$1,017 AUD
Retailer 9$1,099 AUD
Retailer 6$1,119 AUD
Retailer 11$1,610 AUD
Retailer 7$2,451 AUD
Rare Carat$3,806 AUD
Retailer 3$5,875 AUD
Retailer 4$7,568 AUD

10 data points across 12 retailers

10 retailers$707 AUD to $3,806 AUD

A
Cheapest Retailer
-
$707 AUD
A
Retailer 2
-
$766 AUD
View
A
Retailer 3
-
$851 AUD
View
B+
Retailer 4
-
$1,012 AUD
View
A
Retailer 5
-
$1,017 AUD
View
A
Retailer 6
-
$1,099 AUD
View
A
Retailer 7
-
$1,119 AUD
View
A
Retailer 8
-
$1,610 AUD
View
B+
Retailer 9
-
$2,451 AUD
View
Most Expensive
B
Rare Carat
KI2435902KF685 · Nov 1
$3,806 AUD
$2,615 USD
View
9 more retailers have this diamond
Prices start from $707 AUDSave up to $3,099 AUD

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
$707 AUD