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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG830620278

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620278

Diamond specifications and retailer prices

From $323 CAD
$231 USD
As of October 30, 2026
Save $2,087 CAD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,410 CAD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG830620278 or 830620278. Listed at 12 retailers as of October 30, 2026, with prices from $323 to $2,410, a $2,087 spread on the same certified stone. Helzberg Diamonds lists it at $2,410. 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

1.23
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620278
Dimensions7.73 × 5.27 × 3.69 mm
L/W Ratio1.47
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
7.73 mm5.27 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620278
Side View
Table 59.0%Crown 37°Girdle: MED-THKPavilion 36.6°Culet: NoneDepth 70.0%

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: Oct 30
Current: $2,410 CAD|Low: $323 CAD|High: $2,410 CAD|Avg: $956 CAD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9$323 CAD
Retailer 5$409 CAD
Retailer 2$607 CAD
Retailer 7$617 CAD
Retailer 4$653 CAD
Retailer 8$835 CAD
Retailer 11$873 CAD
Retailer 10$1,169 CAD
Retailer 3$1,223 CAD
Retailer 6$1,348 CAD
Helzberg Diamonds$2,410 CAD

6 data points across 11 retailers

12 retailers$323 CAD to $2,410 CAD

A
Cheapest Retailer
-
$323 CAD
$231 USD
Final sale: no returns
A
Retailer 2
-
$409 CAD
£230 GBP
View
A
Retailer 3
-
$607 CAD
€414 EUR
View
A
Retailer 4
-
$617 CAD
$442 USD
View
A
Retailer 5
-
$653 CAD
£368 GBP
View
B+
Retailer 6
-
$835 CAD
$598 USD
View
B+
Retailer 7
-
$873 CAD
A$962 AUD
View
B
Retailer 8
-
$1,169 CAD
SGD 1,131 SGD
View
B
Retailer 9
-
$1,223 CAD
$876 USD
View
B
Retailer 10
-
$1,348 CAD
$965 USD
View
B
Retailer 11
-
$1,760 CAD
$1,260 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGINO · Oct 30
$2,410 CAD
$1,725 USD
View
11 more retailers have this diamond
Prices start from $323 CADSave up to $2,087 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
1.23ct Cushion
$323 CAD