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Cushion|Natural|GIA

1.50ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 6551584113

Certificate GIA 6551584113

Diamond specifications and retailer prices

From $6,356 AUD
As of November 5, 2026
Save $8,487 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,842 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551584113. Listed at 15 retailers as of November 4, 2026, with prices from $6,356 to $14,842, a $8,487 spread on the same certified stone. MOH London lists it at $14,842. 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551584113
Dimensions7.64 × 5.65 × 3.87 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Indented Natural
Top View
7.64 mm5.65 mm1.50 ctG / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551584113
Side View
Table 62.0%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 5
Current: $14,842 AUD|Low: $5,346 AUD|High: $14,883 AUD|Avg: $8,223 AUD|+24.6%
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
November 6, 2026
Retailer 7$5,346 AUD
Retailer 15$5,797 AUD
Retailer 11$6,356 AUD
Retailer 3$6,656 AUD
Retailer 6$7,210 AUD
Retailer 5$7,306 AUD
Retailer 2$7,981 AUD
Retailer 13$8,518 AUD
Retailer 14$9,016 AUD
Retailer 10$9,593 AUD
Retailer 8$9,798 AUD
Retailer 9$10,977 AUD
Retailer 4$12,522 AUD
Retailer 12$14,793 AUD
MOH London$14,842 AUD

30 data points across 15 retailers

15 retailers$6,356 AUD to $14,842 AUD

Retailer 1
-
$5,346 AUD
Price last confirmed 24 days ago
Retailer 2
-
$5,797 AUD
View
Price last confirmed 25 days ago
A
Retailer 3
-
$6,356 AUD
View
Retailer 4
-
$7,210 AUD
View
Price last confirmed 26 days ago
Retailer 5
-
$7,306 AUD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$7,471 AUD
View
B+
Retailer 7
-
$7,981 AUD
View
B+
Retailer 8
-
$8,518 AUD
View
B+
Retailer 9
-
$9,016 AUD
View
B
Retailer 10
-
$9,593 AUD
View
B+
Retailer 11
-
$9,798 AUD
View
B
Retailer 12
-
$10,977 AUD
View
Retailer 13
-
$12,522 AUD
View
Price last confirmed 25 days ago
B
Retailer 14
-
$14,793 AUD
View
Most Expensive
B
MOH London
46ACDC1C9 · Nov 4
$14,842 AUD
£8,030 GBP
View
14 more retailers have this diamond
Prices start from $6,356 AUDSave up to $8,487 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
$6,356 AUD