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Cushion|Lab Grown|IGI

3.10ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG624442531

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG624442531

Diamond specifications and retailer prices

From HK$3,615 HKD
As of October 30, 2026
Save HK$12,194 HKD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$15,809 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG624442531 or 624442531. Listed at 9 retailers as of October 28, 2026, with prices from HK$3,615 to HK$15,809, a HK$12,194 spread on the same certified stone. Rare Carat lists it at HK$15,809. 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

3.10
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624442531
Dimensions8.48 × 8.42 × 5.64 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.48 mm8.42 mm3.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624442531
Side View
Table 64.0%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 67.0%

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 30
Current: HK$15,809 HKD|Low: HK$3,615 HKD|High: HK$32,082 HKD|Avg: HK$11,450 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
October 30, 2026
Retailer 9HK$3,615 HKD
Retailer 2HK$3,933 HKD
Retailer 6HK$4,394 HKD
Retailer 11HK$5,170 HKD
Retailer 8HK$5,712 HKD
Retailer 5HK$5,717 HKD
Retailer 12HK$7,686 HKD
Retailer 10HK$7,963 HKD
Retailer 7HK$12,903 HKD
Rare CaratHK$15,809 HKD
Retailer 4HK$28,637 HKD
Retailer 3HK$32,082 HKD

3 data points across 12 retailers

9 retailersHK$3,615 HKD to HK$15,809 HKD

A
Cheapest Retailer
-
HK$3,615 HKD
A
Retailer 2
-
HK$3,933 HKD
£395 GBP
View
A
Retailer 3
-
HK$4,394 HKD
$560 USD
View
B+
Retailer 4
-
HK$5,170 HKD
$659 USD
View
A
Retailer 5
-
HK$5,712 HKD
$728 USD
View
A
Retailer 6
-
HK$5,717 HKD
£574 GBP
View
A
Retailer 7
-
HK$7,963 HKD
$1,015 USD
View
B
Retailer 8
-
HK$12,903 HKD
£1,295 GBP
View
Most Expensive
B
Rare Carat
KI5314425KF624 · Oct 28
HK$15,809 HKD
$2,015 USD
View
8 more retailers have this diamond
Prices start from HK$3,615 HKDSave up to HK$12,194 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
3.10ct Cushion
HK$3,615 HKD