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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 1559373415

Certificate GIA 1559373415

Diamond specifications and retailer prices

From HK$19,758 HKD
As of November 6, 2026
Save HK$23,958 HKD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$43,716 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559373415. Listed at 12 retailers as of November 4, 2026, with prices from HK$19,758 to HK$43,716, a HK$23,958 spread on the same certified stone. MOH London lists it at HK$43,716. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559373415
Dimensions7.65 × 5.90 × 4.11 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
7.65 mm5.90 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1559373415
Side View
Table 68.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$43,716 HKD|Low: HK$19,656 HKD|High: HK$44,631 HKD|Avg: HK$27,481 HKD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10HK$19,758 HKD
Retailer 2HK$20,879 HKD
Retailer 7HK$23,316 HKD
Retailer 4HK$26,122 HKD
Retailer 3HK$26,373 HKD
Retailer 8HK$27,141 HKD
Retailer 11HK$27,337 HKD
Retailer 6HK$27,478 HKD
Retailer 9HK$27,980 HKD
Retailer 5HK$30,511 HKD
MOH LondonHK$43,716 HKD

28 data points across 11 retailers

12 retailersHK$19,758 HKD to HK$43,716 HKD

A
Cheapest Retailer
-
HK$19,758 HKD
A
Retailer 2
-
HK$20,879 HKD
View
A
Retailer 3
-
HK$23,316 HKD
View
B+
Retailer 4
-
HK$24,547 HKD
View
B+
Retailer 5
-
HK$26,122 HKD
View
Retailer 6
-
HK$26,373 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$27,141 HKD
View
B+
Retailer 8
-
HK$27,337 HKD
View
B+
Retailer 9
-
HK$27,478 HKD
View
B+
Retailer 10
-
HK$27,980 HKD
View
B+
Retailer 11
-
HK$30,511 HKD
View
Most Expensive
B
MOH London
9336CC951 · Nov 4
HK$43,716 HKD
£4,392 GBP
View
11 more retailers have this diamond
Prices start from HK$19,758 HKDSave up to HK$23,958 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.

A
1.50ct Cushion
HK$19,758 HKD