Cushion|Lab Grown|GIA

1.50ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • GIA 6412739498

Certificate GIA 6412739498

Diamond specifications and retailer prices

From $894 CAD
HK$5,000 HKD
As of October 30, 2026
Save $2,081 CAD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,975 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6412739498. Listed at 11 retailers as of October 29, 2026, with prices from $894 to $2,975, a $2,081 spread on the same certified stone. MOH London lists it at $2,975. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6412739498
Dimensions6.98 × 6.48 × 4.38 mm
L/W Ratio1.08
Top View
6.98 mm6.48 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6412739498
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,975 CAD|Low: $806 CAD|High: $2,995 CAD|Avg: $1,434 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7$806 CAD
Retailer 6$929 CAD
Retailer 8$1,090 CAD
Retailer 9$1,134 CAD
Retailer 2$1,218 CAD
Retailer 4$1,248 CAD
Retailer 5$1,585 CAD
Retailer 3$1,858 CAD
MOH London$2,975 CAD

43 data points across 9 retailers

11 retailers$894 CAD to $2,975 CAD

Retailer 1
-
$806 CAD
$577 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$894 CAD
HK$5,000 HKD
View
B+
Retailer 3
-
$926 CAD
$663 USD
View
B+
Retailer 4
-
$929 CAD
$665 USD
View
B+
Retailer 5
-
$1,090 CAD
$780 USD
View
B+
Retailer 6
-
$1,134 CAD
$812 USD
View
B+
Retailer 7
-
$1,218 CAD
£686 GBP
View
B+
Retailer 8
-
$1,248 CAD
€851 EUR
View
Retailer 9
-
$1,585 CAD
$1,135 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$1,858 CAD
$1,330 USD
View
Most Expensive
B
MOH London
6412739498 · Oct 29
$2,975 CAD
£1,677 GBP
View
10 more retailers have this diamond
Prices start from $894 CADSave up to $2,081 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.

B+
1.50ct Cushion
$894 CAD