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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5546558713

Certificate GIA 5546558713

Diamond specifications and retailer prices

From HK$13,794 HKD
As of November 6, 2026
Save HK$13,692 HKD (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$29,054 HKD at MOH London · As of October 21, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546558713. Listed at 17 retailers as of November 6, 2026, with a 99% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 5546558713
Dimensions7.63 × 6.09 × 4.19 mm
L/W Ratio1.25
Top View
7.63 mm6.09 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5546558713
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 38.2°Culet: NoneDepth 68.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$29,054 HKD|Low: HK$12,838 HKD|High: HK$32,986 HKD|Avg: HK$19,377 HKD|-11.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 5HK$12,838 HKD
Retailer 2HK$13,794 HKD
Retailer 3HK$14,554 HKD
Retailer 14HK$14,578 HKD
Retailer 16HK$15,557 HKD
Retailer 4HK$15,706 HKD
Retailer 6HK$15,988 HKD
Retailer 7HK$16,521 HKD
Retailer 10HK$18,081 HKD
Retailer 13HK$18,097 HKD
Retailer 8HK$18,935 HKD
Retailer 15HK$19,907 HKD
Retailer 11HK$22,407 HKD
Retailer 12HK$22,791 HKD
Retailer 9HK$27,486 HKD
MOH LondonHK$29,054 HKD

31 data points across 16 retailers

17 retailersHK$13,794 HKD to HK$27,486 HKD

Retailer 1
-
HK$12,838 HKD
Price last confirmed 7 days ago
A
Retailer 2
-
HK$13,794 HKD
View
Final sale: no returns
Retailer 3
-
HK$14,554 HKD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$14,578 HKD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$15,557 HKD
View
Retailer 6
-
HK$15,706 HKD
View
Price last confirmed 9 days ago
A
Retailer 7
-
HK$15,988 HKD
View
A
Retailer 8
-
HK$16,521 HKD
View
A
Retailer 9
-
HK$18,081 HKD
View
Retailer 10
-
HK$18,081 HKD
View
Price last confirmed 16 days ago
Retailer 11
-
HK$18,097 HKD
View
Price last confirmed 7 days ago
A
Retailer 12
-
HK$18,935 HKD
View
Retailer 13
-
HK$19,907 HKD
View
Price last confirmed 15 days ago
B+
Retailer 14
-
HK$22,407 HKD
View
A
Retailer 15
-
HK$22,791 HKD
View
B+
Retailer 16
-
HK$27,486 HKD
View
Most Expensive
MOH London
74B40F158 · Oct 21
HK$29,054 HKD
£2,919 GBP
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from HK$13,794 HKDSave up to HK$13,692 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$13,794 HKD