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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 HK$3,809 HKD
As of November 6, 2026
Save HK$16,686 HKD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$20,495 HKD 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 HK$3,809 to HK$20,495, a HK$16,686 spread on the same certified stone. Rare Carat lists it at HK$20,495. 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: HK$20,495 HKD|Low: HK$3,809 HKD|High: HK$40,754 HKD|Avg: HK$12,696 HKD
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 10HK$3,809 HKD
Retailer 5HK$4,122 HKD
Retailer 8HK$4,585 HKD
Retailer 12HK$5,447 HKD
Retailer 2HK$5,478 HKD
Retailer 9HK$5,917 HKD
Retailer 6HK$6,027 HKD
Retailer 11HK$8,668 HKD
Retailer 7HK$13,198 HKD
Rare CaratHK$20,495 HKD
Retailer 3HK$31,640 HKD
Retailer 4HK$40,754 HKD

10 data points across 12 retailers

10 retailersHK$3,809 HKD to HK$20,495 HKD

A
Cheapest Retailer
-
HK$3,809 HKD
A
Retailer 2
-
HK$4,122 HKD
View
A
Retailer 3
-
HK$4,585 HKD
View
B+
Retailer 4
-
HK$5,447 HKD
View
A
Retailer 5
-
HK$5,478 HKD
View
A
Retailer 6
-
HK$5,917 HKD
View
A
Retailer 7
-
HK$6,027 HKD
View
A
Retailer 8
-
HK$8,668 HKD
View
B+
Retailer 9
-
HK$13,198 HKD
View
Most Expensive
B
Rare Carat
KI2435902KF685 · Nov 1
HK$20,495 HKD
$2,615 USD
View
9 more retailers have this diamond
Prices start from HK$3,809 HKDSave up to HK$16,686 HKD

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
HK$3,809 HKD