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 $199 USD
As of November 4, 2026
Save $830 USD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,029 USD 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 $199 to $1,029, a $830 spread on the same certified stone. MOH London lists it at $1,029. 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
Color
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: $1,029 USD|Low: $199 USD|High: $1,107 USD|Avg: $484 USD|-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$199 USD
Retailer 4$234 USD
Retailer 5$263 USD
Retailer 9$375 USD
Retailer 8$380 USD
Retailer 2$390 USD
Retailer 10$391 USD
Retailer 11$433 USD
Retailer 6$537 USD
Retailer 7$665 USD
Retailer 12$763 USD
MOH London$1,029 USD

36 data points across 12 retailers

12 retailers$199 USD to $1,029 USD

A
Cheapest Retailer
-
$199 USD
Final sale: no returns
Retailer 2
-
$234 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$263 USD
View
A
Retailer 4
-
$375 USD
View
A
Retailer 5
-
$380 USD
View
A
Retailer 6
-
$390 USD
View
A
Retailer 7
-
$391 USD
View
A
Retailer 8
-
$433 USD
View
A
Retailer 9
-
$537 USD
View
B+
Retailer 10
-
$665 USD
View
B+
Retailer 11
-
$763 USD
View
Most Expensive
B
MOH London
LG825623179 · Nov 5
$1,029 USD
£810 GBP
View
11 more retailers have this diamond
Prices start from $199 USDSave up to $830 USD

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
$199 USD