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Cushion|Natural|GIA

1.51ct L SI2 Cushion Natural Diamond

EX • L/SI2 • GIA 5546721153

Certificate GIA 5546721153

Diamond specifications and retailer prices

From $2,969 AUD
As of November 4, 2026
Save $1,166 AUD (28%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,135 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546721153. Listed at 9 retailers as of November 4, 2026, with prices from $2,969 to $4,135, a $1,166 spread on the same certified stone. Yorxs lists it at $4,135. 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

1.51
Carat
L
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5546721153
Dimensions7.80 × 5.69 × 3.99 mm
L/W Ratio1.37
Top View
7.80 mm5.69 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5546721153
Side View
Table 66.0%CrownGirdle: THK-ETKPavilionCulet: NDepth 70.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,618 AUD|Low: $2,969 AUD|High: $4,160 AUD|Avg: $3,433 AUD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 6, 2026
Retailer 2$2,969 AUD
Retailer 6$3,008 AUD
Retailer 4$3,176 AUD
Retailer 3$3,330 AUD
Retailer 8$3,458 AUD
Retailer 7$3,532 AUD
Retailer 5$3,611 AUD
Retailer 1$3,618 AUD
Yorxs$4,135 AUD

43 data points across 9 retailers

9 retailers$2,969 AUD to $4,135 AUD

A
Cheapest Retailer
-
$2,969 AUD
B+
Retailer 2
-
$3,008 AUD
View
B+
Retailer 3
-
$3,176 AUD
View
Retailer 4
-
$3,330 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$3,458 AUD
View
B+
Retailer 6
-
$3,532 AUD
View
B+
Retailer 7
-
$3,611 AUD
View
B+
Retailer 8
-
$3,618 AUD
View
Most Expensive
B
Yorxs
D45A08DCC · Nov 6
$4,135 AUD
€2,706 EUR
View
8 more retailers have this diamond
Prices start from $2,969 AUDSave up to $1,166 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
1.51ct Cushion
$2,969 AUD