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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1545812994

Certificate GIA 1545812994

Diamond specifications and retailer prices

From $5,181 AUD
As of November 6, 2026
Save $5,770 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,952 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545812994. Listed at 17 retailers as of November 4, 2026, with prices from $5,181 to $10,952, a $5,770 spread on the same certified stone. MOH London lists it at $10,952. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545812994
Dimensions7.59 × 6.00 × 4.10 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.59 mm6.00 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545812994
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

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: $10,952 AUD|Low: $5,181 AUD|High: $11,114 AUD|Avg: $7,404 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3$5,181 AUD
Retailer 4$6,461 AUD
Retailer 7$6,506 AUD
Retailer 2$6,805 AUD
Retailer 8$6,950 AUD
Retailer 5$7,335 AUD
Retailer 6$8,412 AUD
MOH London$10,952 AUD

32 data points across 8 retailers

17 retailers$5,181 AUD to $10,952 AUD

A
Cheapest Retailer
-
$5,181 AUD
A
Retailer 2
-
$5,485 AUD
View
Final sale: no returns
A
Retailer 3
-
$5,666 AUD
View
A
Retailer 4
-
$5,887 AUD
View
A
Retailer 5
-
$6,014 AUD
View
A
Retailer 6
-
$6,319 AUD
View
A
Retailer 7
-
$6,461 AUD
View
B+
Retailer 8
-
$6,506 AUD
View
A
Retailer 9
-
$6,805 AUD
View
Retailer 10
-
$6,894 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
$6,950 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$7,113 AUD
View
B+
Retailer 13
-
$7,261 AUD
View
B+
Retailer 14
-
$7,335 AUD
View
B+
Retailer 15
-
$7,379 AUD
View
B+
Retailer 16
-
$8,412 AUD
View
Most Expensive
B
MOH London
DB2474490 · Nov 4
$10,952 AUD
£5,925 GBP
View
16 more retailers have this diamond
Prices start from $5,181 AUDSave up to $5,770 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
$5,181 AUD