CaratHunter
Plans
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 $496 SGD
As of October 31, 2026
Save $885 SGD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,380 SGD 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 October 31, 2026, with prices from $496 to $1,380, a $885 spread on the same certified stone. MOH London lists it at $1,380. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,380 SGD|Low: $282 SGD|High: $1,384 SGD|Avg: $715 SGD|+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 5, 2026
Retailer 4$285 SGD
Retailer 8$496 SGD
Retailer 7$511 SGD
Retailer 11$521 SGD
Retailer 2$531 SGD
Retailer 9$557 SGD
Retailer 5$773 SGD
Retailer 3$830 SGD
Retailer 6$843 SGD
Retailer 10$856 SGD
Retailer 12$1,021 SGD
MOH London$1,380 SGD

43 data points across 12 retailers

13 retailers$496 SGD to $1,380 SGD

Retailer 1
-
$285 SGD
Price last confirmed 11 days ago
A
Retailer 2
-
$496 SGD
View
A
Retailer 3
-
$511 SGD
View
A
Retailer 4
-
$521 SGD
View
A
Retailer 5
-
$531 SGD
View
A
Retailer 6
-
$557 SGD
View
B+
Retailer 7
-
$773 SGD
View
Retailer 8
-
$830 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$843 SGD
View
B+
Retailer 10
-
$856 SGD
View
B
Retailer 11
-
$1,021 SGD
View
Retailer 12
-
$1,124 SGD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
LG801634581 · Nov 5
$1,380 SGD
£851 GBP
View
12 more retailers have this diamond
Prices start from $496 SGDSave up to $885 SGD

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
$496 SGD