Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG800669132

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800669132

Diamond specifications and retailer prices

From $402 USD
As of October 30, 2026
Save $147 USD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,068 USD at MOH London · As of October 21, 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 very-good cut grade and certified by IGI LG800669132 or 800669132. Listed at 8 retailers as of October 30, 2026, with a 37% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800669132
Dimensions7.45 × 5.40 × 3.79 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm5.40 mm1.21 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800669132
Side View
Table 65.0%Crown 36.2°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 70.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,068 USD|Low: $377 USD|High: $1,076 USD|Avg: $572 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3$390 USD
Retailer 5$402 USD
Retailer 2$409 USD
Retailer 8$435 USD
Retailer 6$549 USD
Retailer 4$554 USD
Retailer 7$784 USD
MOH London$1,068 USD

38 data points across 8 retailers

8 retailers$402 USD to $549 USD

Retailer 1
-
$390 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$402 USD
View
A
Retailer 3
-
$409 USD
View
A
Retailer 4
-
$435 USD
View
B+
Retailer 5
-
$549 USD
View
Retailer 6
-
$554 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$784 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG800669132 · Oct 21
$1,068 USD
£841 GBP
View
Price last confirmed 15 days ago
7 more retailers have this diamond
Prices start from $402 USDSave up to $147 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
$402 USD