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Cushion|Lab Grown|IGI

1.28ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG836637144

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836637144

Diamond specifications and retailer prices

From $300 CAD
$215 USD
As of October 30, 2026
Save $966 CAD (76%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,266 CAD at Frank Darling · As of October 26, 2026
View at Frank Darling

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836637144 or 836637144. Listed at 4 retailers as of October 26, 2026, with prices from $300 to $1,266, a $966 spread on the same certified stone. Frank Darling lists it at $1,266. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836637144
Dimensions7.43 × 5.79 × 3.89 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.43 mm5.79 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836637144
Side View
Table 60.0%Crown 34.4°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 67.2%

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: $1,266 CAD|Low: $228 CAD|High: $1,284 CAD|Avg: $616 CAD|-1.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 2$300 CAD
Retailer 3$464 CAD
Retailer 5$598 CAD
Retailer 4$677 CAD
Frank Darling$1,266 CAD

9 data points across 5 retailers

4 retailers$300 CAD to $1,266 CAD

A
Cheapest Retailer
-
$300 CAD
$215 USD
Final sale: no returns
B+
Retailer 2
-
$464 CAD
$332 USD
View
Retailer 3
-
$598 CAD
ZAR 6,918 ZAR
View
Price last confirmed 43 days ago
Most Expensive
B
Frank Darling
100196996796KD · Oct 26
$1,266 CAD
$907 USD
View
3 more retailers have this diamond
Prices start from $300 CADSave up to $966 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
1.28ct Cushion
$300 CAD