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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1543520312

Certificate GIA 1543520312

Diamond specifications and retailer prices

From HK$14,742 HKD
As of November 6, 2026
Save HK$18,990 HKD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$33,732 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543520312. Listed at 14 retailers as of November 4, 2026, with prices from HK$14,742 to HK$33,732, a HK$18,990 spread on the same certified stone. MOH London lists it at HK$33,732. 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
FluorescenceFaint
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 1543520312
Dimensions7.45 × 6.07 × 4.17 mm
L/W Ratio1.23
Girdle conditionFaceted
Top View
7.45 mm6.07 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543520312
Side View
Table 64.0%CrownGirdle: MED-THKPavilion 37.5°Culet: NoneDepth 68.8%

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$33,732 HKD|Low: HK$14,546 HKD|High: HK$37,634 HKD|Avg: HK$23,481 HKD|-10.4%
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
November 6, 2026
Retailer 13HK$14,742 HKD
Retailer 10HK$17,814 HKD
Retailer 11HK$18,708 HKD
Retailer 5HK$19,202 HKD
Retailer 9HK$20,424 HKD
Retailer 3HK$20,510 HKD
Retailer 6HK$20,542 HKD
Retailer 4HK$23,277 HKD
Retailer 7HK$23,559 HKD
Retailer 2HK$23,967 HKD
Retailer 8HK$24,578 HKD
Retailer 12HK$31,514 HKD
MOH LondonHK$33,732 HKD

33 data points across 13 retailers

14 retailersHK$14,742 HKD to HK$33,732 HKD

A
Cheapest Retailer
-
HK$14,742 HKD
A
Retailer 2
-
HK$17,814 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$18,708 HKD
View
A
Retailer 4
-
HK$19,202 HKD
View
A
Retailer 5
-
HK$20,424 HKD
View
A
Retailer 6
-
HK$20,510 HKD
View
A
Retailer 7
-
HK$20,542 HKD
View
A
Retailer 8
-
HK$22,399 HKD
View
A
Retailer 9
-
HK$23,277 HKD
View
A
Retailer 10
-
HK$23,559 HKD
View
A
Retailer 11
-
HK$23,967 HKD
View
A
Retailer 12
-
HK$24,578 HKD
View
B+
Retailer 13
-
HK$31,514 HKD
View
Most Expensive
B+
MOH London
53B5DEFF3 · Nov 4
HK$33,732 HKD
£3,389 GBP
View
13 more retailers have this diamond
Prices start from HK$14,742 HKDSave up to HK$18,990 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$14,742 HKD