CaratHunter
Plans
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 $911 AUD
HK$5,000 HKD
As of October 31, 2026
Save $2,121 AUD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,032 AUD 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 $911 to $3,032, a $2,121 spread on the same certified stone. MOH London lists it at $3,032. 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: $3,032 AUD|Low: $821 AUD|High: $3,052 AUD|Avg: $1,465 AUD|+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$821 AUD
Retailer 6$947 AUD
Retailer 8$1,110 AUD
Retailer 9$1,156 AUD
Retailer 3$1,241 AUD
Retailer 2$1,263 AUD
Retailer 5$1,616 AUD
Retailer 4$1,893 AUD
MOH London$3,032 AUD

42 data points across 9 retailers

11 retailers$911 AUD to $3,032 AUD

Retailer 1
-
$821 AUD
$577 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$911 AUD
HK$5,000 HKD
View
B+
Retailer 3
-
$944 AUD
$663 USD
View
B+
Retailer 4
-
$947 AUD
$665 USD
View
B+
Retailer 5
-
$1,110 AUD
$780 USD
View
B+
Retailer 6
-
$1,156 AUD
$812 USD
View
B+
Retailer 7
-
$1,241 AUD
£686 GBP
View
B+
Retailer 8
-
$1,263 AUD
€845 EUR
View
Retailer 9
-
$1,616 AUD
$1,135 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$1,893 AUD
$1,330 USD
View
Most Expensive
B
MOH London
6412739498 · Oct 29
$3,032 AUD
£1,677 GBP
View
10 more retailers have this diamond
Prices start from $911 AUDSave up to $2,121 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.

B+
1.50ct Cushion
$911 AUD