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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5543508231

Certificate GIA 5543508231

Diamond specifications and retailer prices

From HK$44,794 HKD
As of October 29, 2026
Save HK$41,154 HKD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$85,948 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 E 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 5543508231. Listed at 19 retailers as of October 28, 2026, with prices from HK$44,794 to HK$85,948, a HK$41,154 spread on the same certified stone. Queensmith lists it at HK$85,948. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543508231
Dimensions7.65 × 5.88 × 3.99 mm
L/W Ratio1.30
Top View
7.65 mm5.88 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5543508231
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.9%

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 29
Current: HK$85,948 HKD|Low: HK$44,794 HKD|High: HK$86,645 HKD|Avg: HK$60,981 HKD|+1.6%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 3HK$44,794 HKD
Retailer 9HK$48,165 HKD
Retailer 14HK$48,938 HKD
Retailer 7HK$53,186 HKD
Retailer 5HK$55,003 HKD
Retailer 12HK$55,003 HKD
Retailer 2HK$55,929 HKD
Retailer 8HK$56,188 HKD
Retailer 15HK$57,459 HKD
Retailer 6HK$60,879 HKD
Retailer 4HK$61,783 HKD
Retailer 11HK$65,020 HKD
Retailer 13HK$72,573 HKD
Retailer 10HK$83,506 HKD
QueensmithHK$85,948 HKD

22 data points across 15 retailers

19 retailersHK$44,794 HKD to HK$85,948 HKD

A
Cheapest Retailer
-
HK$44,794 HKD
A
Retailer 2
-
HK$48,165 HKD
₹584,615 INR
View
A
Retailer 3
-
HK$48,938 HKD
$6,237 USD
View
Retailer 4
-
HK$51,833 HKD
SGD 8,927 SGD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
HK$53,186 HKD
SGD 9,160 SGD
View
B+
Retailer 6
-
HK$54,807 HKD
$6,985 USD
View
B+
Retailer 7
-
HK$55,003 HKD
$7,010 USD
View
B+
Retailer 8
-
HK$55,003 HKD
$7,010 USD
View
Final sale: no returns
Retailer 9
-
HK$55,309 HKD
$7,049 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
HK$55,929 HKD
£5,613 GBP
View
B+
Retailer 11
-
HK$56,188 HKD
£5,639 GBP
View
Retailer 12
-
HK$57,459 HKD
A$11,266 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
HK$60,682 HKD
A$11,898 AUD
View
B+
Retailer 14
-
HK$60,879 HKD
$7,759 USD
View
B+
Retailer 15
-
HK$61,783 HKD
$7,874 USD
View
B+
Retailer 16
-
HK$65,020 HKD
€7,892 EUR
View
B
Retailer 17
-
HK$72,573 HKD
ZAR 149,421 ZAR
View
B
Retailer 18
-
HK$83,506 HKD
£8,380 GBP
View
Most Expensive
B
Queensmith
5543508231 · Oct 28
HK$85,948 HKD
£8,625 GBP
View
18 more retailers have this diamond
Prices start from HK$44,794 HKDSave up to HK$41,154 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$44,794 HKD