CaratHunter
Plans
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 $441 AUD
$310 USD
As of November 1, 2026
Save $1,103 AUD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,544 AUD 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 $441 to $1,544, a $1,103 spread on the same certified stone. MOH London lists it at $1,544. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,544 AUD|Low: $173 AUD|High: $1,564 AUD|Avg: $632 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$173 AUD
Retailer 6$441 AUD
Retailer 4$567 AUD
Retailer 2$594 AUD
Retailer 5$680 AUD
Retailer 3$780 AUD
MOH London$1,544 AUD

42 data points across 7 retailers

8 retailers$441 AUD to $1,544 AUD

B+
Cheapest Retailer
-
$441 AUD
$310 USD
A
Retailer 2
-
$567 AUD
ZAR 6,437 ZAR
View
A
Retailer 3
-
$594 AUD
£329 GBP
View
A
Retailer 4
-
$656 AUD
$461 USD
View
A
Retailer 5
-
$680 AUD
$478 USD
View
B+
Retailer 6
-
$780 AUD
$548 USD
View
B
Retailer 7
-
$1,139 AUD
$800 USD
View
Most Expensive
B
MOH London
LG816675728 · Nov 1
$1,544 AUD
£854 GBP
View
7 more retailers have this diamond
Prices start from $441 AUDSave up to $1,103 AUD

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
$441 AUD