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Cushion|Natural|GIA

1.50ct I IF Cushion Natural Diamond

GD • I/IF • GIA 6511175678

Certificate GIA 6511175678

Diamond specifications and retailer prices

From $6,562 AUD
As of November 7, 2026
10 retailers carry this diamond
Most expensive: $8,223 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 6511175678. Listed at 10 retailers as of November 7, 2026. 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6511175678
Dimensions6.65 × 6.00 × 4.17 mm
L/W Ratio1.11
Top View
6.65 mm6.00 mm1.50 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6511175678
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $8,223 AUD|Low: $4,742 AUD|High: $9,038 AUD|Avg: $6,353 AUD|-9.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$5,055 AUD
Retailer 7$5,437 AUD
Retailer 10$5,675 AUD
Retailer 4$5,734 AUD
Retailer 2$5,852 AUD
Retailer 9$5,878 AUD
Retailer 5$6,244 AUD
Retailer 11$6,244 AUD
Retailer 6$6,447 AUD
Retailer 3$6,562 AUD
Do Amore Diamonds$8,223 AUD

34 data points across 11 retailers

10 retailers

Retailer 1
-
$5,437 AUD
Price last confirmed 10 days ago
Retailer 2
-
$5,675 AUD
View
Price last confirmed 10 days ago
Retailer 3
-
$5,734 AUD
View
Price last confirmed 10 days ago
Retailer 4
-
$5,852 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$5,878 AUD
View
Price last confirmed 10 days ago
Retailer 6
-
$6,244 AUD
View
Price last confirmed 10 days ago
Retailer 7
-
$6,244 AUD
View
Price last confirmed 10 days ago
Retailer 8
-
$6,447 AUD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$6,562 AUD
View
Most Expensive
Do Amore Diamonds
12-100760836335 · Oct 29
$8,223 AUD
$5,650 USD
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $6,562 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.

B+
1.50ct Cushion
$6,562 AUD