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Cushion|Natural|GIA

1.50ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 2387861420

Certificate GIA 2387861420

Diamond specifications and retailer prices

From $3,986 AUD
As of November 6, 2026
Save $5,054 AUD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,040 AUD at MOH London · As of November 4, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2387861420. Listed at 18 retailers as of November 4, 2026, with prices from $3,986 to $9,040, a $5,054 spread on the same certified stone. MOH London lists it at $9,040. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2387861420
Dimensions6.70 × 6.45 × 4.45 mm
L/W Ratio1.04
Top View
6.70 mm6.45 mm1.50 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2387861420
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.0%

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: $9,040 AUD|Low: $3,949 AUD|High: $10,245 AUD|Avg: $5,707 AUD|-11.8%
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
November 6, 2026
Retailer 13$3,986 AUD
Retailer 3$4,119 AUD
Retailer 5$4,260 AUD
Retailer 8$4,359 AUD
Retailer 12$4,424 AUD
Retailer 4$4,532 AUD
Retailer 14$4,612 AUD
Retailer 15$4,911 AUD
Retailer 2$5,258 AUD
Retailer 17$5,266 AUD
Retailer 6$5,560 AUD
Retailer 7$5,560 AUD
Retailer 11$5,612 AUD
Retailer 9$5,749 AUD
Retailer 16$6,137 AUD
Retailer 10$6,309 AUD
MOH London$9,040 AUD

40 data points across 17 retailers

18 retailers$3,986 AUD to $9,040 AUD

B+
Cheapest Retailer
-
$3,986 AUD
B+
Retailer 2
-
$4,119 AUD
View
A
Retailer 3
-
$4,260 AUD
View
A
Retailer 4
-
$4,359 AUD
View
B+
Retailer 5
-
$4,424 AUD
View
B+
Retailer 6
-
$4,532 AUD
View
Final sale: no returns
B+
Retailer 7
-
$4,612 AUD
View
Retailer 8
-
$4,911 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$5,258 AUD
View
B+
Retailer 10
-
$5,266 AUD
View
B+
Retailer 11
-
$5,523 AUD
View
B+
Retailer 12
-
$5,560 AUD
View
B+
Retailer 13
-
$5,560 AUD
View
B+
Retailer 14
-
$5,560 AUD
View
B+
Retailer 15
-
$5,612 AUD
View
B+
Retailer 16
-
$5,749 AUD
View
B+
Retailer 17
-
$6,309 AUD
View
Most Expensive
B
MOH London
AFDF2591D · Nov 4
$9,040 AUD
£4,891 GBP
View
17 more retailers have this diamond
Prices start from $3,986 AUDSave up to $5,054 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
$3,986 AUD