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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6551442183

Certificate GIA 6551442183

Diamond specifications and retailer prices

From HK$20,989 HKD
As of November 1, 2026
Save HK$25,663 HKD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$46,652 HKD at MOH London · As of November 1, 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 6551442183. Listed at 21 retailers as of November 1, 2026, with prices from HK$20,989 to HK$46,652, a HK$25,663 spread on the same certified stone. MOH London lists it at HK$46,652. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551442183
Dimensions7.24 × 5.79 × 3.98 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.24 mm5.79 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551442183
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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$46,652 HKD|Low: HK$20,989 HKD|High: HK$50,548 HKD|Avg: HK$30,264 HKD|-7.7%
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 19HK$20,989 HKD
Retailer 17HK$22,925 HKD
Retailer 8HK$23,711 HKD
Retailer 6HK$23,733 HKD
Retailer 15HK$23,741 HKD
Retailer 3HK$24,448 HKD
Retailer 10HK$25,381 HKD
Retailer 14HK$25,881 HKD
Retailer 18HK$26,754 HKD
Retailer 2HK$26,942 HKD
Retailer 4HK$27,028 HKD
Retailer 16HK$27,371 HKD
Retailer 11HK$27,617 HKD
Retailer 13HK$33,232 HKD
Retailer 5HK$35,832 HKD
Retailer 7HK$36,992 HKD
Retailer 12HK$40,092 HKD
Retailer 9HK$46,034 HKD
MOH LondonHK$46,652 HKD

19 data points across 19 retailers

21 retailersHK$20,989 HKD to HK$46,652 HKD

A
Cheapest Retailer
-
HK$20,989 HKD
A
Retailer 2
-
HK$22,925 HKD
$2,922 USD
View
A
Retailer 3
-
HK$23,711 HKD
$3,022 USD
View
A
Retailer 4
-
HK$23,733 HKD
$3,025 USD
View
A
Retailer 5
-
HK$23,741 HKD
$3,026 USD
View
Final sale: no returns
A
Retailer 6
-
HK$24,448 HKD
€2,968 EUR
View
A
Retailer 7
-
HK$25,381 HKD
$3,235 USD
View
A
Retailer 8
-
HK$25,881 HKD
$3,299 USD
View
A
Retailer 9
-
HK$26,754 HKD
$3,410 USD
View
A
Retailer 10
-
HK$26,942 HKD
£2,704 GBP
View
A
Retailer 11
-
HK$27,028 HKD
$3,445 USD
View
A
Retailer 12
-
HK$27,371 HKD
£2,747 GBP
View
Retailer 13
-
HK$27,617 HKD
$3,520 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
HK$30,996 HKD
A$6,078 AUD
View
A
Retailer 15
-
HK$33,232 HKD
€4,034 EUR
View
Retailer 16
-
HK$33,380 HKD
A$6,545 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
HK$35,832 HKD
ZAR 73,781 ZAR
View
B+
Retailer 18
-
HK$36,992 HKD
$4,715 USD
View
B+
Retailer 19
-
HK$40,092 HKD
$5,110 USD
View
Retailer 20
-
HK$46,034 HKD
$5,867 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
20437D1FD · Nov 1
HK$46,652 HKD
£4,682 GBP
View
20 more retailers have this diamond
Prices start from HK$20,989 HKDSave up to HK$25,663 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$20,989 HKD