CaratHunter
Plans
Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG825623179

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

Certificate IGI LG825623179

Diamond specifications and retailer prices

From $254 SGD
As of November 4, 2026
Save $1,060 SGD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,314 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 LG825623179 or 825623179. Listed at 12 retailers as of November 4, 2026, with prices from $254 to $1,314, a $1,060 spread on the same certified stone. MOH London lists it at $1,314. 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 angle33.8°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825623179
Dimensions6.18 × 5.88 × 3.97 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.18 mm5.88 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825623179
Side View
Table 63.0%Crown 33.8°Girdle: STK-THKPavilion 38.4°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: Nov 4
Current: $1,314 SGD|Low: $254 SGD|High: $1,415 SGD|Avg: $619 SGD|-6.9%
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 3$254 SGD
Retailer 4$299 SGD
Retailer 2$335 SGD
Retailer 9$479 SGD
Retailer 8$485 SGD
Retailer 5$498 SGD
Retailer 10$499 SGD
Retailer 11$553 SGD
Retailer 6$686 SGD
Retailer 7$849 SGD
Retailer 12$975 SGD
MOH London$1,314 SGD

36 data points across 12 retailers

12 retailers$254 SGD to $1,314 SGD

A
Cheapest Retailer
-
$254 SGD
Final sale: no returns
Retailer 2
-
$299 SGD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$335 SGD
View
A
Retailer 4
-
$479 SGD
View
A
Retailer 5
-
$485 SGD
View
A
Retailer 6
-
$498 SGD
View
A
Retailer 7
-
$499 SGD
View
A
Retailer 8
-
$553 SGD
View
A
Retailer 9
-
$686 SGD
View
B+
Retailer 10
-
$849 SGD
View
B+
Retailer 11
-
$975 SGD
View
Most Expensive
B
MOH London
LG825623179 · Nov 5
$1,314 SGD
£810 GBP
View
11 more retailers have this diamond
Prices start from $254 SGDSave up to $1,060 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
$254 SGD