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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 6551664558

Certificate GIA 6551664558

Diamond specifications and retailer prices

From HK$31,533 HKD
As of October 31, 2026
Save HK$40,108 HKD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$71,641 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551664558. Listed at 15 retailers as of October 28, 2026, with prices from HK$31,533 to HK$71,641, a HK$40,108 spread on the same certified stone. Queensmith lists it at HK$71,641. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551664558
Dimensions7.73 × 5.95 × 4.07 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
7.73 mm5.95 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551664558
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

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: Oct 31
Current: HK$71,641 HKD|Low: HK$31,333 HKD|High: HK$72,140 HKD|Avg: HK$45,816 HKD|+1.7%
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
October 31, 2026
Retailer 6HK$31,533 HKD
Retailer 2HK$33,810 HKD
Retailer 5HK$37,204 HKD
Retailer 3HK$38,883 HKD
Retailer 9HK$39,812 HKD
Retailer 12HK$40,165 HKD
Retailer 8HK$41,103 HKD
Retailer 10HK$42,124 HKD
Retailer 4HK$43,327 HKD
Retailer 13HK$44,328 HKD
Retailer 7HK$47,673 HKD
Retailer 11HK$67,178 HKD
QueensmithHK$71,641 HKD

24 data points across 13 retailers

15 retailersHK$31,533 HKD to HK$71,641 HKD

A
Cheapest Retailer
-
HK$31,533 HKD
A
Retailer 2
-
HK$33,810 HKD
₹410,417 INR
View
A
Retailer 3
-
HK$37,204 HKD
SGD 6,408 SGD
View
B+
Retailer 4
-
HK$38,679 HKD
$4,930 USD
View
B+
Retailer 5
-
HK$38,883 HKD
$4,956 USD
View
Final sale: no returns
A
Retailer 6
-
HK$39,812 HKD
£3,996 GBP
View
B+
Retailer 7
-
HK$40,165 HKD
SGD 6,918 SGD
View
A
Retailer 8
-
HK$41,103 HKD
£4,125 GBP
View
B+
Retailer 9
-
HK$42,124 HKD
$5,369 USD
View
B+
Retailer 10
-
HK$43,327 HKD
$5,522 USD
View
B+
Retailer 11
-
HK$44,328 HKD
$5,650 USD
View
B+
Retailer 12
-
HK$45,428 HKD
A$8,908 AUD
View
B+
Retailer 13
-
HK$47,673 HKD
€5,787 EUR
View
B
Retailer 14
-
HK$67,178 HKD
£6,742 GBP
View
Most Expensive
B
Queensmith
6551664558 · Oct 28
HK$71,641 HKD
£7,190 GBP
View
14 more retailers have this diamond
Prices start from HK$31,533 HKDSave up to HK$40,108 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$31,533 HKD