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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 $818 SGD
HK$5,000 HKD
As of October 31, 2026
Save $1,905 SGD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,723 SGD 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 $818 to $2,723, a $1,905 spread on the same certified stone. MOH London lists it at $2,723. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,723 SGD|Low: $738 SGD|High: $2,741 SGD|Avg: $1,316 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$738 SGD
Retailer 6$850 SGD
Retailer 8$997 SGD
Retailer 9$1,038 SGD
Retailer 2$1,114 SGD
Retailer 3$1,134 SGD
Retailer 5$1,451 SGD
Retailer 4$1,700 SGD
MOH London$2,723 SGD

43 data points across 9 retailers

11 retailers$818 SGD to $2,723 SGD

Retailer 1
-
$738 SGD
$577 USD
Price last confirmed 16 days ago
B+
Retailer 2
-
$818 SGD
HK$5,000 HKD
View
B+
Retailer 3
-
$848 SGD
$663 USD
View
B+
Retailer 4
-
$850 SGD
$665 USD
View
B+
Retailer 5
-
$997 SGD
$780 USD
View
B+
Retailer 6
-
$1,038 SGD
$812 USD
View
B+
Retailer 7
-
$1,114 SGD
£686 GBP
View
B+
Retailer 8
-
$1,134 SGD
€845 EUR
View
Retailer 9
-
$1,451 SGD
$1,135 USD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$1,700 SGD
$1,330 USD
View
Most Expensive
B
MOH London
6412739498 · Oct 29
$2,723 SGD
£1,677 GBP
View
10 more retailers have this diamond
Prices start from $818 SGDSave up to $1,905 SGD

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
$818 SGD