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Cushion|Natural|GIA

15.53ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 5221279747

Certificate GIA 5221279747

Diamond specifications and retailer prices

From $325,843 AUD
₹21,798,746 INR
As of November 1, 2026
Save $137,473 AUD (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $463,316 AUD at Yorxs · As of November 2, 2026
View at Yorxs

About this 15.53ct natural cushion diamond

This 15.53ct natural cushion sits in the over five 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 5221279747. Listed at 3 retailers as of November 1, 2026, with prices from $325,843 to $463,316, a $137,473 spread on the same certified stone. Yorxs lists it at $463,316. 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

15.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5221279747
Dimensions14.24 × 13.56 × 9.20 mm
L/W Ratio1.05
Top View
14.24 mm13.56 mm15.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5221279747
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.9%

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 1
Current: $325,843 AUD|Low: $325,081 AUD|High: $574,864 AUD|Avg: $433,490 AUD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 2, 2026
Retailer 1$325,843 AUD
Retailer 2$377,527 AUD
Yorxs$463,316 AUD
Retailer 3$479,293 AUD

46 data points across 4 retailers

3 retailers$325,843 AUD to $463,316 AUD

A
Cheapest Retailer
-
$325,843 AUD
₹21,798,746 INR
Retailer 2
-
$377,527 AUD
£208,812 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Yorxs
A3CFBAC84 · Nov 2
$463,316 AUD
€309,956 EUR
View
2 more retailers have this diamond
Prices start from $325,843 AUDSave up to $137,473 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
15.53ct Cushion
$325,843 AUD