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Cushion|Natural|GIA

1.50ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 1565498678

Certificate GIA 1565498678

Diamond specifications and retailer prices

From $5,988 AUD
As of November 6, 2026
Save $6,533 AUD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,521 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565498678. Listed at 16 retailers as of November 4, 2026, with prices from $5,988 to $12,521, a $6,533 spread on the same certified stone. MOH London lists it at $12,521. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565498678
Dimensions8.13 × 6.01 × 4.02 mm
L/W Ratio1.35
Girdle conditionFaceted
Top View
8.13 mm6.01 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565498678
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.8%

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: $12,521 AUD|Low: $5,775 AUD|High: $13,266 AUD|Avg: $7,939 AUD|-0.0%
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 17$5,988 AUD
Retailer 4$6,091 AUD
Retailer 13$6,215 AUD
Retailer 14$6,466 AUD
Retailer 7$6,605 AUD
Retailer 12$6,747 AUD
Retailer 16$7,078 AUD
Retailer 6$7,124 AUD
Retailer 5$7,249 AUD
Retailer 3$7,262 AUD
Retailer 8$7,418 AUD
Retailer 11$7,577 AUD
Retailer 2$8,267 AUD
Retailer 9$8,370 AUD
Retailer 10$9,156 AUD
Retailer 15$12,448 AUD
MOH London$12,521 AUD

23 data points across 17 retailers

16 retailers$5,988 AUD to $12,521 AUD

A
Cheapest Retailer
-
$5,988 AUD
A
Retailer 2
-
$6,091 AUD
View
A
Retailer 3
-
$6,215 AUD
View
A
Retailer 4
-
$6,466 AUD
View
A
Retailer 5
-
$6,605 AUD
View
B+
Retailer 6
-
$6,747 AUD
View
B+
Retailer 7
-
$7,078 AUD
View
B+
Retailer 8
-
$7,124 AUD
View
Final sale: no returns
B+
Retailer 9
-
$7,249 AUD
View
B+
Retailer 10
-
$7,262 AUD
View
Retailer 11
-
$7,418 AUD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$7,577 AUD
View
B+
Retailer 13
-
$8,267 AUD
View
B
Retailer 14
-
$9,156 AUD
View
B
Retailer 15
-
$12,448 AUD
View
Most Expensive
B
MOH London
59BE0F6B8 · Nov 4
$12,521 AUD
£6,774 GBP
View
15 more retailers have this diamond
Prices start from $5,988 AUDSave up to $6,533 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
$5,988 AUD