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Cushion|Natural|GIA

1.50ct K IF Cushion Natural Diamond

GD • K/IF • GIA 5546756780

Certificate GIA 5546756780

Diamond specifications and retailer prices

From $4,113 AUD
As of November 6, 2026
Save $1,161 AUD (22%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,274 AUD 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5546756780. Listed at 8 retailers as of November 5, 2026, with prices from $4,113 to $5,274, a $1,161 spread on the same certified stone. Blue Nile lists it at $5,274. 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
K
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546756780
Dimensions6.52 × 6.10 × 4.24 mm
L/W Ratio1.07
Top View
6.52 mm6.10 mm1.50 ctK / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546756780
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.5%

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: $5,274 AUD|Low: $3,941 AUD|High: $5,768 AUD|Avg: $4,756 AUD|-8.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$4,113 AUD
Retailer 4$4,427 AUD
Retailer 5$4,509 AUD
Retailer 7$4,580 AUD
Retailer 3$4,702 AUD
Retailer 6$5,186 AUD
Blue Nile$5,274 AUD

45 data points across 7 retailers

8 retailers$4,113 AUD to $5,274 AUD

A
Cheapest Retailer
-
$4,113 AUD
B+
Retailer 2
-
$4,427 AUD
View
A
Retailer 3
-
$4,509 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,580 AUD
View
A
Retailer 5
-
$4,702 AUD
View
B+
Retailer 6
-
$4,927 AUD
View
B+
Retailer 7
-
$5,186 AUD
View
Most Expensive
B+
Blue Nile
28445214 · Nov 5
$5,274 AUD
$3,624 USD
View
7 more retailers have this diamond
Prices start from $4,113 AUDSave up to $1,161 AUD

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
$4,113 AUD