CaratHunter
Plans
Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 1555054425

Certificate GIA 1555054425

Diamond specifications and retailer prices

From $4,861 AUD
As of November 6, 2026
Save $5,608 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,469 AUD at MOH London · As of November 1, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555054425. Listed at 21 retailers as of November 1, 2026, with prices from $4,861 to $10,469, a $5,608 spread on the same certified stone. MOH London lists it at $10,469. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555054425
Dimensions7.45 × 5.73 × 4.17 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.73 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555054425
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 72.8%

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 6
Current: $10,469 AUD|Low: $4,861 AUD|High: $10,750 AUD|Avg: $6,751 AUD|-2.6%
MOH London
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
Retailer 19
November 7, 2026
Retailer 18$4,861 AUD
Retailer 8$5,611 AUD
Retailer 17$5,635 AUD
Retailer 9$5,755 AUD
Retailer 10$5,755 AUD
Retailer 3$5,931 AUD
Retailer 19$5,938 AUD
Retailer 7$6,065 AUD
Retailer 13$6,072 AUD
Retailer 12$6,098 AUD
Retailer 15$6,191 AUD
Retailer 11$6,229 AUD
Retailer 6$6,479 AUD
Retailer 2$6,535 AUD
Retailer 5$7,053 AUD
Retailer 14$7,241 AUD
Retailer 16$7,850 AUD
Retailer 4$10,287 AUD
MOH London$10,469 AUD

20 data points across 19 retailers

21 retailers$4,861 AUD to $10,469 AUD

A
Cheapest Retailer
-
$4,861 AUD
B+
Retailer 2
-
$5,611 AUD
View
B+
Retailer 3
-
$5,635 AUD
View
Retailer 4
-
$5,755 AUD
View
Price last confirmed 9 days ago
Retailer 5
-
$5,755 AUD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$5,931 AUD
View
B+
Retailer 7
-
$5,938 AUD
View
Final sale: no returns
B+
Retailer 8
-
$6,065 AUD
View
B+
Retailer 9
-
$6,072 AUD
View
B+
Retailer 10
-
$6,098 AUD
View
B+
Retailer 11
-
$6,191 AUD
View
Retailer 12
-
$6,229 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$6,479 AUD
View
B+
Retailer 14
-
$6,535 AUD
View
Retailer 15
-
$6,862 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$6,979 AUD
View
B+
Retailer 17
-
$7,053 AUD
View
B+
Retailer 18
-
$7,241 AUD
View
B
Retailer 19
-
$7,850 AUD
View
B
Retailer 20
-
$10,287 AUD
View
Most Expensive
B
MOH London
CE8DDD0F8 · Nov 1
$10,469 AUD
£5,664 GBP
View
20 more retailers have this diamond
Prices start from $4,861 AUDSave up to $5,608 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
$4,861 AUD