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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6541605256

Certificate GIA 6541605256

Diamond specifications and retailer prices

From HK$23,601 HKD
As of November 2, 2026
Save HK$27,248 HKD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$50,849 HKD at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541605256. Listed at 22 retailers as of November 2, 2026, with prices from HK$23,601 to HK$50,849, a HK$27,248 spread on the same certified stone. MOH London lists it at HK$50,849. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541605256
Dimensions6.78 × 6.57 × 4.38 mm
L/W Ratio1.03
Top View
6.78 mm6.57 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541605256
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 39°Culet: NoneDepth 66.7%

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 2
Current: HK$50,849 HKD|Low: HK$23,199 HKD|High: HK$50,849 HKD|Avg: HK$30,509 HKD|+0.3%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 13HK$23,601 HKD
Retailer 3HK$23,656 HKD
Retailer 19HK$24,904 HKD
Retailer 6HK$25,254 HKD
Retailer 17HK$25,421 HKD
Retailer 10HK$26,324 HKD
Retailer 4HK$26,745 HKD
Retailer 9HK$26,842 HKD
Retailer 16HK$28,404 HKD
Retailer 14HK$28,852 HKD
Retailer 2HK$28,874 HKD
Retailer 11HK$29,820 HKD
Retailer 7HK$30,474 HKD
Retailer 18HK$31,104 HKD
Retailer 12HK$31,235 HKD
Retailer 15HK$35,590 HKD
Retailer 5HK$37,070 HKD
Retailer 8HK$48,936 HKD
MOH LondonHK$50,849 HKD

19 data points across 19 retailers

22 retailersHK$23,601 HKD to HK$50,849 HKD

A
Cheapest Retailer
-
HK$23,601 HKD
A
Retailer 2
-
HK$23,656 HKD
$3,015 USD
View
A
Retailer 3
-
HK$24,904 HKD
$3,174 USD
View
A
Retailer 4
-
HK$25,254 HKD
$3,219 USD
View
A
Retailer 5
-
HK$25,421 HKD
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
HK$26,324 HKD
$3,355 USD
View
A
Retailer 7
-
HK$26,745 HKD
€3,246 EUR
View
A
Retailer 8
-
HK$26,842 HKD
$3,421 USD
View
A
Retailer 9
-
HK$28,404 HKD
$3,620 USD
View
A
Retailer 10
-
HK$28,852 HKD
£2,895 GBP
View
A
Retailer 11
-
HK$28,874 HKD
$3,680 USD
View
A
Retailer 12
-
HK$29,820 HKD
SGD 5,136 SGD
View
Retailer 13
-
HK$30,474 HKD
$3,884 USD
View
Price last confirmed 13 days ago
Retailer 14
-
HK$30,984 HKD
$3,949 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
HK$31,104 HKD
£3,121 GBP
View
A
Retailer 16
-
HK$31,235 HKD
$3,981 USD
View
A
Retailer 17
-
HK$32,681 HKD
A$6,408 AUD
View
Retailer 18
-
HK$33,115 HKD
A$6,493 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
HK$35,590 HKD
€4,320 EUR
View
B+
Retailer 20
-
HK$37,070 HKD
ZAR 76,327 ZAR
View
Retailer 21
-
HK$48,936 HKD
$6,237 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
MOH London
8B8AE58D9 · Nov 2
HK$50,849 HKD
£5,103 GBP
View
21 more retailers have this diamond
Prices start from HK$23,601 HKDSave up to HK$27,248 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$23,601 HKD