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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 $551 NZD
$310 USD
As of November 1, 2026
Save $1,377 NZD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,928 NZD at MOH London · As of November 1, 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 November 1, 2026, with prices from $551 to $1,928, a $1,377 spread on the same certified stone. MOH London lists it at $1,928. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,928 NZD|Low: $216 NZD|High: $1,952 NZD|Avg: $795 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7$216 NZD
Retailer 6$551 NZD
Retailer 3$712 NZD
Retailer 2$748 NZD
Retailer 5$850 NZD
Retailer 4$974 NZD
MOH London$1,928 NZD

43 data points across 7 retailers

8 retailers$551 NZD to $1,928 NZD

B+
Cheapest Retailer
-
$551 NZD
$310 USD
A
Retailer 2
-
$712 NZD
ZAR 6,472 ZAR
View
A
Retailer 3
-
$748 NZD
£331 GBP
View
A
Retailer 4
-
$819 NZD
$461 USD
View
A
Retailer 5
-
$850 NZD
$478 USD
View
B+
Retailer 6
-
$974 NZD
$548 USD
View
B
Retailer 7
-
$1,422 NZD
$800 USD
View
Most Expensive
B
MOH London
LG816675728 · Nov 1
$1,928 NZD
£854 GBP
View
7 more retailers have this diamond
Prices start from $551 NZDSave up to $1,377 NZD

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
$551 NZD