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Cushion|Natural|GIA

1.53ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1545862532

Certificate GIA 1545862532

Diamond specifications and retailer prices

From $4,639 AUD
HK$25,400 HKD
As of November 2, 2026
Save $5,496 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,135 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct natural cushion diamond

This 1.53ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545862532. Listed at 20 retailers as of November 2, 2026, with prices from $4,639 to $10,135, a $5,496 spread on the same certified stone. MOH London lists it at $10,135. 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

1.53
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 1545862532
Dimensions6.67 × 6.67 × 4.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.67 mm6.67 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545862532
Side View
Table 65.0%CrownGirdle: MED-THKPavilion 38.4°Culet: NoneDepth 65.6%

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 2
Current: $10,135 AUD|Low: $4,566 AUD|High: $10,244 AUD|Avg: $6,107 AUD|-1.1%
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
November 2, 2026
Retailer 11$4,639 AUD
Retailer 7$5,006 AUD
Retailer 2$5,203 AUD
Retailer 9$5,245 AUD
Retailer 18$5,262 AUD
Retailer 17$5,565 AUD
Retailer 15$5,593 AUD
Retailer 10$5,651 AUD
Retailer 3$5,715 AUD
Retailer 12$5,751 AUD
Retailer 6$6,034 AUD
Retailer 14$6,129 AUD
Retailer 5$6,177 AUD
Retailer 16$6,200 AUD
Retailer 13$6,857 AUD
Retailer 4$7,391 AUD
Retailer 8$9,683 AUD
MOH London$10,135 AUD

19 data points across 18 retailers

20 retailers$4,639 AUD to $10,135 AUD

A
Cheapest Retailer
-
$4,639 AUD
HK$25,400 HKD
A
Retailer 2
-
$5,006 AUD
$3,509 USD
View
A
Retailer 3
-
$5,203 AUD
€3,473 EUR
View
A
Retailer 4
-
$5,245 AUD
$3,676 USD
View
A
Retailer 5
-
$5,262 AUD
$3,688 USD
View
A
Retailer 6
-
$5,565 AUD
$3,900 USD
View
A
Retailer 7
-
$5,593 AUD
$3,920 USD
View
Final sale: no returns
A
Retailer 8
-
$5,651 AUD
$3,960 USD
View
A
Retailer 9
-
$5,715 AUD
$4,005 USD
View
A
Retailer 10
-
$5,751 AUD
£3,173 GBP
View
A
Retailer 11
-
$6,034 AUD
$4,229 USD
View
A
Retailer 12
-
$6,129 AUD
$4,296 USD
View
A
Retailer 13
-
$6,177 AUD
$4,329 USD
View
A
Retailer 14
-
$6,200 AUD
£3,422 GBP
View
B+
Retailer 15
-
$6,435 AUD
View
Retailer 16
-
$6,563 AUD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$6,857 AUD
€4,577 EUR
View
B+
Retailer 18
-
$7,391 AUD
ZAR 83,679 ZAR
View
Retailer 19
-
$9,683 AUD
$6,786 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
F7D246D52 · Nov 2
$10,135 AUD
£5,593 GBP
View
19 more retailers have this diamond
Prices start from $4,639 AUDSave up to $5,496 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
1.53ct Cushion
$4,639 AUD