CaratHunter
Plans
Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 1555054425

Certificate GIA 1555054425

Diamond specifications and retailer prices

From HK$26,177 HKD
As of November 6, 2026
Save HK$30,200 HKD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$56,377 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555054425. Listed at 21 retailers as of November 1, 2026, with prices from HK$26,177 to HK$56,377, a HK$30,200 spread on the same certified stone. MOH London lists it at HK$56,377. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555054425
Dimensions7.45 × 5.73 × 4.17 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.73 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555054425
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 72.8%

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 6
Current: HK$56,377 HKD|Low: HK$26,177 HKD|High: HK$57,890 HKD|Avg: HK$36,354 HKD|-2.6%
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 7, 2026
Retailer 18HK$26,177 HKD
Retailer 8HK$30,213 HKD
Retailer 17HK$30,346 HKD
Retailer 9HK$30,989 HKD
Retailer 10HK$30,989 HKD
Retailer 3HK$31,937 HKD
Retailer 19HK$31,977 HKD
Retailer 7HK$32,658 HKD
Retailer 13HK$32,698 HKD
Retailer 12HK$32,839 HKD
Retailer 15HK$33,340 HKD
Retailer 11HK$33,544 HKD
Retailer 6HK$34,892 HKD
Retailer 2HK$35,190 HKD
Retailer 5HK$37,980 HKD
Retailer 14HK$38,991 HKD
Retailer 16HK$42,275 HKD
Retailer 4HK$55,395 HKD
MOH LondonHK$56,377 HKD

20 data points across 19 retailers

21 retailersHK$26,177 HKD to HK$56,377 HKD

A
Cheapest Retailer
-
HK$26,177 HKD
B+
Retailer 2
-
HK$30,213 HKD
View
B+
Retailer 3
-
HK$30,346 HKD
View
Retailer 4
-
HK$30,989 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$30,989 HKD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
HK$31,937 HKD
View
B+
Retailer 7
-
HK$31,977 HKD
View
Final sale: no returns
B+
Retailer 8
-
HK$32,658 HKD
View
B+
Retailer 9
-
HK$32,698 HKD
View
B+
Retailer 10
-
HK$32,839 HKD
View
B+
Retailer 11
-
HK$33,340 HKD
View
Retailer 12
-
HK$33,544 HKD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
HK$34,892 HKD
View
B+
Retailer 14
-
HK$35,190 HKD
View
Retailer 15
-
HK$36,953 HKD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
HK$37,580 HKD
View
B+
Retailer 17
-
HK$37,980 HKD
View
B+
Retailer 18
-
HK$38,991 HKD
View
B
Retailer 19
-
HK$42,275 HKD
View
B
Retailer 20
-
HK$55,395 HKD
View
Most Expensive
B
MOH London
CE8DDD0F8 · Nov 1
HK$56,377 HKD
£5,664 GBP
View
20 more retailers have this diamond
Prices start from HK$26,177 HKDSave up to HK$30,200 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$26,177 HKD