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Cushion|Lab Grown|IGI

3.12ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG567368333

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG567368333

Diamond specifications and retailer prices

From HK$6,002 HKD
$765 USD
As of October 29, 2026
Save HK$23,592 HKD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$29,594 HKD at B2C Jewels · As of October 26, 2026
View at B2C Jewels

About this 3.12ct lab-grown cushion diamond

This 3.12ct 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 LG567368333 or 567368333. Listed at 8 retailers as of October 26, 2026, with prices from HK$6,002 to HK$29,594, a HK$23,592 spread on the same certified stone. B2C Jewels lists it at HK$29,594. 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

3.12
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567368333
Dimensions8.75 × 8.39 × 5.20 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.75 mm8.39 mm3.12 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567368333
Side View
Table 62.5%Crown 35°Girdle: THN-STKPavilion 35.1°Culet: NoneDepth 62.0%

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 29
Current: HK$7,736 HKD|Low: HK$5,649 HKD|High: HK$29,594 HKD|Avg: HK$10,771 HKD|-73.9%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5HK$6,002 HKD
Retailer 2HK$6,020 HKD
Retailer 4HK$7,618 HKD
B2C JewelsHK$7,736 HKD
Retailer 3HK$8,161 HKD
Retailer 6HK$8,528 HKD
Retailer 7HK$15,961 HKD

5 data points across 7 retailers

8 retailersHK$6,002 HKD to HK$29,594 HKD

A
Cheapest Retailer
-
HK$6,002 HKD
$765 USD
A
Retailer 2
-
HK$6,020 HKD
£604 GBP
View
A
Retailer 3
-
HK$7,618 HKD
$971 USD
View
A
Retailer 4
-
HK$7,736 HKD
$986 USD
View
A
Retailer 5
-
HK$8,161 HKD
£819 GBP
View
A
Retailer 6
-
HK$8,528 HKD
$1,087 USD
View
B
Retailer 7
-
HK$16,476 HKD
$2,100 USD
View
Most Expensive
B
B2C Jewels
21586996 · Oct 26
HK$29,594 HKD
$3,772 USD
View
7 more retailers have this diamond
Prices start from HK$6,002 HKDSave up to HK$23,592 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
3.12ct Cushion
HK$6,002 HKD