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Cushion|Lab Grown|IGI

3.21ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG625441166

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG625441166

Diamond specifications and retailer prices

From HK$4,826 HKD
$615 USD
As of October 29, 2026
Save HK$17,586 HKD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$22,411 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 3.21ct lab-grown cushion diamond

This 3.21ct 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 LG625441166 or 625441166. Listed at 11 retailers as of October 29, 2026, with prices from HK$4,826 to HK$22,411, a HK$17,586 spread on the same certified stone. MOH London lists it at HK$22,411. 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

3.21
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625441166
Dimensions10.21 × 7.71 × 5.06 mm
L/W Ratio1.32
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
10.21 mm7.71 mm3.21 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625441166
Side View
Table 64.0%Crown 34.1°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$22,411 HKD|Low: HK$3,107 HKD|High: HK$38,840 HKD|Avg: HK$13,390 HKD|-0.5%
MOH London
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 11HK$4,826 HKD
Retailer 10HK$5,343 HKD
Retailer 5HK$5,767 HKD
Retailer 8HK$7,156 HKD
Retailer 9HK$8,148 HKD
Retailer 2HK$8,324 HKD
Retailer 12HK$9,055 HKD
Retailer 7HK$11,652 HKD
Retailer 3HK$17,329 HKD
Retailer 6HK$20,165 HKD
MOH LondonHK$22,411 HKD
Retailer 4HK$38,840 HKD

42 data points across 12 retailers

11 retailersHK$4,826 HKD to HK$22,411 HKD

A
Cheapest Retailer
-
HK$4,826 HKD
$615 USD
Final sale: no returns
Retailer 2
-
HK$5,343 HKD
$681 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
HK$5,767 HKD
$735 USD
View
B+
Retailer 4
-
HK$7,156 HKD
$912 USD
View
A
Retailer 5
-
HK$8,324 HKD
£835 GBP
View
B+
Retailer 6
-
HK$9,055 HKD
$1,154 USD
View
B+
Retailer 7
-
HK$11,652 HKD
$1,485 USD
View
B
Retailer 8
-
HK$17,329 HKD
$2,208 USD
View
Retailer 9
-
HK$20,165 HKD
$2,570 USD
View
Price last confirmed 11 days ago
Retailer 10
-
HK$22,373 HKD
$2,851 USD
View
Price last confirmed 87 days ago
Most Expensive
B
MOH London
LG625441166 · Oct 29
HK$22,411 HKD
£2,249 GBP
View
10 more retailers have this diamond
Prices start from HK$4,826 HKDSave up to HK$17,586 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
3.21ct Cushion
HK$4,826 HKD