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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG801634581

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

Certificate IGI LG801634581

Diamond specifications and retailer prices

From HK$3,033 HKD
As of November 6, 2026
Save HK$5,437 HKD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$8,470 HKD at MOH London · As of November 5, 2026
View at MOH London

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 LG801634581 or 801634581. Listed at 13 retailers as of November 5, 2026, with prices from HK$3,033 to HK$8,470, a HK$5,437 spread on the same certified stone. MOH London lists it at HK$8,470. 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 angle32.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801634581
Dimensions6.20 × 6.13 × 4.14 mm
L/W Ratio1.01
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
6.20 mm6.13 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801634581
Side View
Table 59.0%Crown 32.4°Girdle: THK-VTKPavilion 40.1°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
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: Nov 6
Current: HK$8,470 HKD|Low: HK$1,732 HKD|High: HK$8,490 HKD|Avg: HK$4,381 HKD|+6.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4HK$1,748 HKD
Retailer 2HK$3,033 HKD
Retailer 5HK$3,072 HKD
Retailer 11HK$3,198 HKD
Retailer 6HK$3,260 HKD
Retailer 9HK$3,417 HKD
Retailer 7HK$4,742 HKD
Retailer 3HK$5,094 HKD
Retailer 8HK$5,173 HKD
Retailer 10HK$5,251 HKD
Retailer 12HK$6,262 HKD
MOH LondonHK$8,470 HKD

43 data points across 12 retailers

13 retailersHK$3,033 HKD to HK$8,470 HKD

Retailer 1
-
HK$1,748 HKD
Price last confirmed 13 days ago
A
Retailer 2
-
HK$3,033 HKD
View
A
Retailer 3
-
HK$3,072 HKD
View
A
Retailer 4
-
HK$3,198 HKD
View
A
Retailer 5
-
HK$3,260 HKD
View
A
Retailer 6
-
HK$3,417 HKD
View
B+
Retailer 7
-
HK$4,742 HKD
View
Retailer 8
-
HK$5,094 HKD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
HK$5,173 HKD
View
B+
Retailer 10
-
HK$5,251 HKD
View
B
Retailer 11
-
HK$6,262 HKD
View
Retailer 12
-
HK$6,897 HKD
View
Price last confirmed 36 days ago
Most Expensive
B
MOH London
LG801634581 · Nov 5
HK$8,470 HKD
£851 GBP
View
12 more retailers have this diamond
Prices start from HK$3,033 HKDSave up to HK$5,437 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$3,033 HKD