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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 HK$5,021 HKD
As of November 1, 2026
Save HK$11,599 HKD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$16,620 HKD at MOH London · As of November 1, 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 November 1, 2026, with prices from HK$5,021 to HK$16,620, a HK$11,599 spread on the same certified stone. MOH London lists it at HK$16,620. 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: Nov 1
Current: HK$16,620 HKD|Low: HK$4,527 HKD|High: HK$16,819 HKD|Avg: HK$8,090 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7HK$4,527 HKD
Retailer 6HK$5,217 HKD
Retailer 8HK$6,120 HKD
Retailer 9HK$6,371 HKD
Retailer 2HK$6,839 HKD
Retailer 3HK$6,961 HKD
Retailer 5HK$8,905 HKD
Retailer 4HK$10,435 HKD
MOH LondonHK$16,620 HKD

43 data points across 9 retailers

11 retailersHK$5,021 HKD to HK$16,620 HKD

Retailer 1
-
HK$4,527 HKD
$577 USD
Price last confirmed 16 days ago
B+
Retailer 2
-
HK$5,021 HKD
View
B+
Retailer 3
-
HK$5,202 HKD
$663 USD
View
B+
Retailer 4
-
HK$5,217 HKD
$665 USD
View
B+
Retailer 5
-
HK$6,120 HKD
$780 USD
View
B+
Retailer 6
-
HK$6,371 HKD
$812 USD
View
B+
Retailer 7
-
HK$6,839 HKD
£686 GBP
View
B+
Retailer 8
-
HK$6,961 HKD
€845 EUR
View
B
Retailer 9
-
HK$8,905 HKD
$1,135 USD
View
B
Retailer 10
-
HK$10,435 HKD
$1,330 USD
View
Most Expensive
B
MOH London
6412739498 · Nov 1
HK$16,620 HKD
£1,668 GBP
View
10 more retailers have this diamond
Prices start from HK$5,021 HKDSave up to HK$11,599 HKD

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
HK$5,021 HKD