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Cushion|Natural|GIA

1.51ct L SI1 Cushion Natural Diamond

EX • L/SI1 • GIA 5413577117

Certificate GIA 5413577117

Diamond specifications and retailer prices

From $2,560 AUD
As of November 6, 2026
Save $2,190 AUD (46%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,750 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5413577117. Listed at 3 retailers as of November 6, 2026, with prices from $2,560 to $4,750, a $2,190 spread on the same certified stone. Yorxs lists it at $4,750. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5413577117
Dimensions6.64 × 6.11 × 4.11 mm
L/W Ratio1.09
Top View
6.64 mm6.11 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5413577117
Side View
Table 66.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $3,697 AUD|Low: $2,911 AUD|High: $4,777 AUD|Avg: $3,860 AUD|+27.0%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1$3,697 AUD
Retailer 2$3,745 AUD
Yorxs$4,750 AUD

42 data points across 3 retailers

3 retailers$2,560 AUD to $4,750 AUD

B+
Cheapest Retailer
-
$2,560 AUD
B
Retailer 2
-
$3,697 AUD
View
Most Expensive
B
Yorxs
1DEC745DC · Nov 6
$4,750 AUD
€3,108 EUR
View
2 more retailers have this diamond
Prices start from $2,560 AUDSave up to $2,190 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.

B+
1.51ct Cushion
$2,560 AUD