CaratHunter
Plans
Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1553442255

Certificate GIA 1553442255

Diamond specifications and retailer prices

From HK$28,219 HKD
As of November 1, 2026
Save HK$31,425 HKD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$60,533 HKD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 1553442255. Listed at 21 retailers as of November 1, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
OriginNatural
Grading LabGIA
CertificateGIA 1553442255
Dimensions7.50 × 5.99 × 4.12 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.50 mm5.99 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553442255
Side View
Table 64.0%CrownGirdle: THK-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$36,013 HKD|Low: HK$28,219 HKD|High: HK$64,019 HKD|Avg: HK$38,420 HKD|-5.6%
Retailer 1
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
Wholesale Diamonds Direct
November 2, 2026
Retailer 2HK$28,219 HKD
Retailer 18HK$28,676 HKD
Retailer 15HK$30,135 HKD
Retailer 13HK$31,736 HKD
Retailer 4HK$32,099 HKD
Retailer 9HK$32,473 HKD
Retailer 7HK$32,630 HKD
Retailer 10HK$33,227 HKD
Retailer 17HK$33,504 HKD
Retailer 16HK$34,207 HKD
Retailer 12HK$34,284 HKD
Retailer 1HK$36,013 HKD
Retailer 6HK$37,118 HKD
Retailer 14HK$37,742 HKD
Retailer 8HK$37,910 HKD
Retailer 11HK$42,936 HKD
Retailer 5HK$47,584 HKD
Retailer 3HK$59,645 HKD
Wholesale Diamonds DirectHK$60,533 HKD

20 data points across 19 retailers

21 retailersHK$28,219 HKD to HK$59,645 HKD

A
Cheapest Retailer
-
HK$28,219 HKD
A
Retailer 2
-
HK$28,676 HKD
$3,655 USD
View
A
Retailer 3
-
HK$30,135 HKD
$3,841 USD
View
A
Retailer 4
-
HK$31,736 HKD
$4,045 USD
View
Final sale: no returns
A
Retailer 5
-
HK$32,099 HKD
€3,897 EUR
View
A
Retailer 6
-
HK$32,473 HKD
$4,139 USD
View
A
Retailer 7
-
HK$32,630 HKD
$4,159 USD
View
A
Retailer 8
-
HK$33,227 HKD
$4,235 USD
View
A
Retailer 9
-
HK$33,504 HKD
A$6,570 AUD
View
A
Retailer 10
-
HK$34,207 HKD
$4,360 USD
View
A
Retailer 11
-
HK$34,284 HKD
$4,370 USD
View
A
Retailer 12
-
HK$36,013 HKD
£3,614 GBP
View
B+
Retailer 13
-
HK$37,118 HKD
$4,731 USD
View
B+
Retailer 14
-
HK$37,742 HKD
£3,788 GBP
View
Retailer 15
-
HK$37,910 HKD
$4,832 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
HK$39,615 HKD
A$7,768 AUD
View
Retailer 17
-
HK$40,290 HKD
A$7,901 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
HK$42,936 HKD
€5,212 EUR
View
B+
Retailer 19
-
HK$47,584 HKD
ZAR 97,981 ZAR
View
B
Retailer 20
-
HK$59,645 HKD
£5,986 GBP
View
Most Expensive
Wholesale Diamonds Direct
253138994 · Oct 23
HK$60,533 HKD
$7,715 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from HK$28,219 HKDSave up to HK$31,425 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$28,219 HKD