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Cushion|Lab Grown|IGI

3.23ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG629454997

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG629454997

Diamond specifications and retailer prices

From HK$3,695 HKD
$471 USD
As of October 29, 2026
Save HK$24,078 HKD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$27,774 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.23ct lab-grown cushion diamond

This 3.23ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629454997 or 629454997. Listed at 12 retailers as of October 29, 2026, with prices from HK$3,695 to HK$27,774, a HK$24,078 spread on the same certified stone. Brilliant Earth lists it at HK$27,774. 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

3.23
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629454997
Dimensions8.63 × 8.39 × 5.65 mm
L/W Ratio1.03
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
8.63 mm8.39 mm3.23 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629454997
Side View
Table 63.0%Crown 38.4°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 67.3%

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$27,774 HKD|Low: HK$3,695 HKD|High: HK$39,778 HKD|Avg: HK$9,695 HKD|-30.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4HK$3,695 HKD
Retailer 3HK$4,088 HKD
Retailer 5HK$5,021 HKD
Retailer 11HK$6,135 HKD
Retailer 10HK$6,316 HKD
Retailer 2HK$6,358 HKD
Retailer 7HK$6,879 HKD
Retailer 6HK$9,791 HKD
Retailer 12HK$12,733 HKD
Retailer 9HK$13,353 HKD
Retailer 8HK$15,215 HKD
Brilliant EarthHK$27,774 HKD

44 data points across 12 retailers

12 retailersHK$3,695 HKD to HK$27,774 HKD

A
Cheapest Retailer
-
HK$3,695 HKD
$471 USD
Final sale: no returns
A
Retailer 2
-
HK$4,088 HKD
$521 USD
View
A
Retailer 3
-
HK$5,021 HKD
$640 USD
View
B+
Retailer 4
-
HK$6,135 HKD
$782 USD
View
A
Retailer 5
-
HK$6,316 HKD
$805 USD
View
A
Retailer 6
-
HK$6,358 HKD
£638 GBP
View
A
Retailer 7
-
HK$6,879 HKD
€835 EUR
View
B+
Retailer 8
-
HK$9,791 HKD
$1,248 USD
View
B+
Retailer 9
-
HK$12,733 HKD
$1,623 USD
View
B+
Retailer 10
-
HK$13,353 HKD
$1,702 USD
View
B+
Retailer 11
-
HK$15,215 HKD
£1,527 GBP
View
Most Expensive
B
Brilliant Earth
14069332A · Oct 30
HK$27,774 HKD
$3,540 USD
View
11 more retailers have this diamond
Prices start from HK$3,695 HKDSave up to HK$24,078 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
3.23ct Cushion
HK$3,695 HKD