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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG749577139

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG749577139

Diamond specifications and retailer prices

From HK$3,503 HKD
As of November 6, 2026
Save HK$7,417 HKD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$10,920 HKD at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG749577139 or 749577139. Listed at 11 retailers as of November 6, 2026, with prices from HK$3,503 to HK$10,920, a HK$7,417 spread on the same certified stone. Taylor and Hart lists it at HK$10,920. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749577139
Dimensions6.43 × 6.14 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm6.14 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749577139
Side View
Table 63.0%Crown 35.5°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 63.7%

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: Nov 6
Current: HK$3,590 HKD|Low: HK$3,425 HKD|High: HK$10,502 HKD|Avg: HK$5,665 HKD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1HK$3,590 HKD
Retailer 8HK$3,621 HKD
Retailer 4HK$3,832 HKD
Retailer 2HK$3,887 HKD
Retailer 3HK$5,181 HKD
Retailer 6HK$5,408 HKD
Retailer 7HK$6,975 HKD
Retailer 9HK$8,472 HKD
Retailer 5HK$8,535 HKD

44 data points across 9 retailers

11 retailersHK$3,503 HKD to HK$10,920 HKD

A
Cheapest Retailer
-
HK$3,503 HKD
A
Retailer 2
-
HK$3,590 HKD
View
A
Retailer 3
-
HK$3,621 HKD
View
A
Retailer 4
-
HK$3,832 HKD
View
A
Retailer 5
-
HK$3,887 HKD
View
B+
Retailer 6
-
HK$5,181 HKD
View
B+
Retailer 7
-
HK$5,408 HKD
View
Retailer 8
-
HK$6,975 HKD
View
Price last confirmed 30 days ago
B
Retailer 9
-
HK$8,472 HKD
View
Retailer 10
-
HK$8,535 HKD
View
Price last confirmed 9 days ago
Most Expensive
B
Taylor and Hart
B9Y3OZB · Nov 6
HK$10,920 HKD
$1,393 USD
View
10 more retailers have this diamond
Prices start from HK$3,503 HKDSave up to HK$7,417 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
1.21ct Cushion
HK$3,503 HKD