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Cushion|Lab Grown|IGI

1.21ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG816675728

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816675728

Diamond specifications and retailer prices

From $433 CAD
$310 USD
As of October 30, 2026
Save $1,091 CAD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,524 CAD at MOH London · As of October 29, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816675728 or 816675728. Listed at 8 retailers as of October 29, 2026, with prices from $433 to $1,524, a $1,091 spread on the same certified stone. MOH London lists it at $1,524. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816675728
Dimensions7.54 × 5.47 × 3.61 mm
L/W Ratio1.38
Girdle conditionFaceted
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
7.54 mm5.47 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816675728
Side View
Table 64.0%Crown 36.3°Girdle: MED-THKPavilion 35.4°Culet: NoneDepth 66.0%

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 30
Current: $1,524 CAD|Low: $170 CAD|High: $1,535 CAD|Avg: $614 CAD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$170 CAD
Retailer 6$433 CAD
Retailer 4$557 CAD
Retailer 2$588 CAD
Retailer 5$668 CAD
Retailer 3$766 CAD
MOH London$1,524 CAD

43 data points across 7 retailers

8 retailers$433 CAD to $1,524 CAD

B+
Cheapest Retailer
-
$433 CAD
$310 USD
A
Retailer 2
-
$557 CAD
ZAR 6,437 ZAR
View
A
Retailer 3
-
$588 CAD
£331 GBP
View
A
Retailer 4
-
$644 CAD
$461 USD
View
A
Retailer 5
-
$668 CAD
$478 USD
View
B+
Retailer 6
-
$766 CAD
$548 USD
View
B
Retailer 7
-
$1,117 CAD
$800 USD
View
Most Expensive
B
MOH London
LG816675728 · Oct 29
$1,524 CAD
£859 GBP
View
7 more retailers have this diamond
Prices start from $433 CADSave up to $1,091 CAD

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
$433 CAD