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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5543750463

Certificate GIA 5543750463

Diamond specifications and retailer prices

From HK$37,659 HKD
As of November 1, 2026
Save HK$40,160 HKD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$77,819 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural 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 5543750463. Listed at 19 retailers as of October 28, 2026, with prices from HK$37,659 to HK$77,819, a HK$40,160 spread on the same certified stone. Queensmith lists it at HK$77,819. 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
OriginNatural
Grading LabGIA
CertificateGIA 5543750463
Dimensions7.38 × 5.80 × 3.97 mm
L/W Ratio1.27
Top View
7.38 mm5.80 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543750463
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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 1
Current: HK$77,819 HKD|Low: HK$37,358 HKD|High: HK$78,417 HKD|Avg: HK$52,692 HKD|+1.8%
Queensmith
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 2, 2026
Retailer 11HK$37,659 HKD
Retailer 2HK$40,228 HKD
Retailer 12HK$42,053 HKD
Retailer 5HK$44,362 HKD
Retailer 3HK$45,842 HKD
Retailer 6HK$46,469 HKD
Retailer 8HK$47,647 HKD
Retailer 4HK$50,905 HKD
Retailer 13HK$51,891 HKD
Retailer 7HK$54,247 HKD
Retailer 10HK$61,024 HKD
Retailer 9HK$73,176 HKD
QueensmithHK$77,819 HKD

23 data points across 13 retailers

19 retailersHK$37,659 HKD to HK$77,819 HKD

A
Cheapest Retailer
-
HK$37,659 HKD
A
Retailer 2
-
HK$40,228 HKD
₹488,323 INR
View
A
Retailer 3
-
HK$42,053 HKD
$5,360 USD
View
Retailer 4
-
HK$43,230 HKD
SGD 7,446 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
HK$44,362 HKD
SGD 7,641 SGD
View
A
Retailer 6
-
HK$45,842 HKD
$5,843 USD
View
Final sale: no returns
A
Retailer 7
-
HK$46,125 HKD
$5,879 USD
View
A
Retailer 8
-
HK$46,133 HKD
$5,880 USD
View
A
Retailer 9
-
HK$46,469 HKD
£4,664 GBP
View
A
Retailer 10
-
HK$47,647 HKD
£4,782 GBP
View
Retailer 11
-
HK$49,441 HKD
A$9,695 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
HK$50,016 HKD
$6,375 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
HK$50,905 HKD
$6,488 USD
View
B+
Retailer 14
-
HK$51,038 HKD
A$10,008 AUD
View
B+
Retailer 15
-
HK$51,891 HKD
$6,614 USD
View
B+
Retailer 16
-
HK$54,247 HKD
€6,585 EUR
View
B+
Retailer 17
-
HK$61,024 HKD
ZAR 125,655 ZAR
View
B+
Retailer 18
-
HK$73,176 HKD
£7,344 GBP
View
Most Expensive
B
Queensmith
5543750463 · Oct 28
HK$77,819 HKD
£7,810 GBP
View
18 more retailers have this diamond
Prices start from HK$37,659 HKDSave up to HK$40,160 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$37,659 HKD