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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 1553811142

Certificate GIA 1553811142

Diamond specifications and retailer prices

From HK$16,952 HKD
As of November 6, 2026
Save HK$9,287 HKD (35%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$38,172 HKD at MOH London · As of October 29, 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 1553811142. Listed at 12 retailers as of November 6, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1553811142
Dimensions7.83 × 6.11 × 3.75 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot, Cavity, Feather, Indented Natural, Natural
Top View
7.83 mm6.11 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1553811142
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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$38,172 HKD|Low: HK$16,952 HKD|High: HK$38,371 HKD|Avg: HK$23,600 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9HK$16,952 HKD
Retailer 2HK$18,050 HKD
Retailer 7HK$20,072 HKD
Retailer 3HK$22,462 HKD
Retailer 10HK$22,705 HKD
Retailer 5HK$23,598 HKD
Retailer 6HK$23,724 HKD
Retailer 8HK$24,398 HKD
Retailer 4HK$26,240 HKD
MOH LondonHK$38,172 HKD

27 data points across 10 retailers

12 retailersHK$16,952 HKD to HK$26,240 HKD

A
Cheapest Retailer
-
HK$16,952 HKD
A
Retailer 2
-
HK$18,050 HKD
View
A
Retailer 3
-
HK$20,072 HKD
View
B+
Retailer 4
-
HK$21,310 HKD
View
A
Retailer 5
-
HK$22,462 HKD
View
B+
Retailer 6
-
HK$22,603 HKD
View
Retailer 7
-
HK$22,705 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$23,598 HKD
View
B+
Retailer 9
-
HK$23,724 HKD
View
B+
Retailer 10
-
HK$24,398 HKD
View
B+
Retailer 11
-
HK$26,240 HKD
View
Most Expensive
MOH London
1F22AD26A · Oct 29
HK$38,172 HKD
£3,835 GBP
View
Price last confirmed 8 days ago
11 more retailers have this diamond
Prices start from HK$16,952 HKDSave up to HK$9,287 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$16,952 HKD