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Cushion|Natural|GIA

1.50ct I IF Cushion Natural Diamond

GD • I/IF • GIA 1558995177

Certificate GIA 1558995177

Diamond specifications and retailer prices

From HK$28,274 HKD
As of November 5, 2026
Save HK$7,979 HKD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$36,253 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558995177. Listed at 6 retailers as of November 5, 2026, with prices from HK$28,274 to HK$36,253, a HK$7,979 spread on the same certified stone. Blue Nile lists it at HK$36,253. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558995177
Dimensions6.35 × 6.05 × 4.28 mm
L/W Ratio1.05
Culet sizeNone
Top View
6.35 mm6.05 mm1.50 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558995177
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 70.7%

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 5
Current: HK$36,253 HKD|Low: HK$28,274 HKD|High: HK$38,371 HKD|Avg: HK$32,501 HKD|-5.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3HK$28,274 HKD
Retailer 4HK$30,565 HKD
Retailer 2HK$32,377 HKD
Retailer 5HK$32,989 HKD
Blue NileHK$36,253 HKD

46 data points across 5 retailers

6 retailersHK$28,274 HKD to HK$36,253 HKD

A
Cheapest Retailer
-
HK$28,274 HKD
A
Retailer 2
-
HK$30,565 HKD
View
A
Retailer 3
-
HK$32,377 HKD
View
B+
Retailer 4
-
HK$32,989 HKD
View
B+
Retailer 5
-
HK$35,374 HKD
View
Most Expensive
B+
Blue Nile
29979759 · Nov 5
HK$36,253 HKD
$4,621 USD
View
5 more retailers have this diamond
Prices start from HK$28,274 HKDSave up to HK$7,979 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$28,274 HKD