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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 $6,411 NZD
As of November 5, 2026
Save $1,809 NZD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,220 NZD 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 $6,411 to $8,220, a $1,809 spread on the same certified stone. Blue Nile lists it at $8,220. 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: $8,220 NZD|Low: $6,411 NZD|High: $8,701 NZD|Avg: $7,370 NZD|-5.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$6,411 NZD
Retailer 4$6,931 NZD
Retailer 2$7,342 NZD
Retailer 5$7,480 NZD
Blue Nile$8,220 NZD

46 data points across 5 retailers

6 retailers$6,411 NZD to $8,220 NZD

A
Cheapest Retailer
-
$6,411 NZD
A
Retailer 2
-
$6,931 NZD
View
A
Retailer 3
-
$7,342 NZD
View
B+
Retailer 4
-
$7,480 NZD
View
B+
Retailer 5
-
$8,021 NZD
View
Most Expensive
B+
Blue Nile
29979759 · Nov 5
$8,220 NZD
$4,621 USD
View
5 more retailers have this diamond
Prices start from $6,411 NZDSave up to $1,809 NZD

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
$6,411 NZD