CaratHunter
Plans
Cushion|Natural|GIA

1.51ct L SI2 Cushion Natural Diamond

EX • L/SI2 • GIA 6562733728

Certificate GIA 6562733728

Diamond specifications and retailer prices

From $2,432 AUD
As of November 6, 2026
Save $915 AUD (27%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,347 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 6562733728. Listed at 9 retailers as of November 6, 2026, with prices from $2,432 to $3,347, a $915 spread on the same certified stone. 77 Diamonds lists it at $3,347. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562733728
Dimensions7.52 × 5.79 × 3.98 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Knot, Cavity, Needle
Top View
7.52 mm5.79 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562733728
Side View
Table 67.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 68.8%

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: $3,347 AUD|Low: $2,432 AUD|High: $3,489 AUD|Avg: $3,027 AUD|-4.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$2,432 AUD
Retailer 7$2,749 AUD
Retailer 6$2,844 AUD
Retailer 5$2,855 AUD
Retailer 3$3,110 AUD
Retailer 9$3,139 AUD
Retailer 8$3,167 AUD
Retailer 4$3,282 AUD
77 Diamonds$3,347 AUD

10 data points across 9 retailers

9 retailers$2,432 AUD to $3,347 AUD

A
Cheapest Retailer
-
$2,432 AUD
A
Retailer 2
-
$2,749 AUD
View
A
Retailer 3
-
$2,844 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,855 AUD
View
B+
Retailer 5
-
$3,110 AUD
View
B+
Retailer 6
-
$3,139 AUD
View
B+
Retailer 7
-
$3,167 AUD
View
B+
Retailer 8
-
$3,282 AUD
View
Most Expensive
B+
77 Diamonds
CUSPUIFSRX2D7FDC · Nov 6
$3,347 AUD
£1,811 GBP
View
8 more retailers have this diamond
Prices start from $2,432 AUDSave up to $915 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
$2,432 AUD