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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 7442418012

Certificate GIA 7442418012

Diamond specifications and retailer prices

From $6,523 AUD
As of November 6, 2026
Save $5,999 AUD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $12,522 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded K 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 7442418012. Listed at 7 retailers as of November 6, 2026, with prices from $6,523 to $12,522, a $5,999 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,522. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7442418012
Dimensions6.48 × 6.32 × 4.54 mm
L/W Ratio1.03
Top View
6.48 mm6.32 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7442418012
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 71.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,208 AUD|Low: $6,437 AUD|High: $9,319 AUD|Avg: $8,296 AUD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$6,523 AUD
Retailer 4$8,254 AUD
Retailer 2$9,197 AUD
Retailer 1$9,208 AUD

40 data points across 4 retailers

7 retailers$6,523 AUD to $12,522 AUD

B+
Cheapest Retailer
-
$6,523 AUD
B
Retailer 2
-
$6,753 AUD
View
B
Retailer 3
-
$6,915 AUD
View
B
Retailer 4
-
$8,254 AUD
View
B
Retailer 5
-
$9,197 AUD
View
B
Retailer 6
-
$9,208 AUD
View
Most Expensive
C
Wholesale Diamonds Direct
217369834 · Nov 6
$12,522 AUD
$8,604 USD
View
6 more retailers have this diamond
Prices start from $6,523 AUDSave up to $5,999 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
$6,523 AUD