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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1553672759

Certificate GIA 1553672759

Diamond specifications and retailer prices

From HK$40,773 HKD
As of November 1, 2026
Save HK$40,883 HKD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$81,655 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 1553672759. Listed at 19 retailers as of October 28, 2026, with prices from HK$40,773 to HK$81,655, a HK$40,883 spread on the same certified stone. Queensmith lists it at HK$81,655. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553672759
Dimensions7.87 × 5.92 × 4.06 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Knot, Needle, Extra Facet
Top View
7.87 mm5.92 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553672759
Side View
Table 65.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.6%

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$81,655 HKD|Low: HK$40,471 HKD|High: HK$82,303 HKD|Avg: HK$57,011 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
November 2, 2026
Retailer 11HK$40,773 HKD
Retailer 2HK$43,473 HKD
Retailer 12HK$45,474 HKD
Retailer 5HK$48,055 HKD
Retailer 13HK$50,189 HKD
Retailer 6HK$50,876 HKD
Retailer 8HK$52,152 HKD
Retailer 3HK$53,272 HKD
Retailer 4HK$55,637 HKD
Retailer 7HK$59,396 HKD
Retailer 10HK$66,812 HKD
Retailer 9HK$80,111 HKD
QueensmithHK$81,655 HKD

23 data points across 13 retailers

19 retailersHK$40,773 HKD to HK$81,655 HKD

A
Cheapest Retailer
-
HK$40,773 HKD
A
Retailer 2
-
HK$43,473 HKD
₹527,720 INR
View
A
Retailer 3
-
HK$45,474 HKD
$5,796 USD
View
Retailer 4
-
HK$46,836 HKD
SGD 8,067 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
HK$48,055 HKD
SGD 8,277 SGD
View
B+
Retailer 6
-
HK$49,961 HKD
$6,368 USD
View
B+
Retailer 7
-
HK$49,977 HKD
$6,370 USD
View
B+
Retailer 8
-
HK$50,189 HKD
$6,397 USD
View
Final sale: no returns
Retailer 9
-
HK$50,518 HKD
$6,439 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
HK$50,876 HKD
£5,106 GBP
View
B+
Retailer 11
-
HK$52,152 HKD
£5,234 GBP
View
B+
Retailer 12
-
HK$53,272 HKD
$6,790 USD
View
Retailer 13
-
HK$53,668 HKD
A$10,524 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
HK$55,637 HKD
$7,091 USD
View
B+
Retailer 15
-
HK$57,157 HKD
A$11,208 AUD
View
B+
Retailer 16
-
HK$59,396 HKD
€7,210 EUR
View
B+
Retailer 17
-
HK$66,812 HKD
ZAR 137,573 ZAR
View
B
Retailer 18
-
HK$80,111 HKD
£8,040 GBP
View
Most Expensive
B
Queensmith
1553672759 · Oct 28
HK$81,655 HKD
£8,195 GBP
View
18 more retailers have this diamond
Prices start from HK$40,773 HKDSave up to HK$40,883 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$40,773 HKD