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Cushion|Natural|GIA

1.51ct D IF Cushion Natural Diamond

EX • D/IF • GIA 3545750279

Certificate GIA 3545750279

Diamond specifications and retailer prices

From $18,028 AUD
$12,620 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $18,028 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545750279. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545750279
Dimensions8.16 × 5.83 × 3.91 mm
L/W Ratio1.40
Top View
8.16 mm5.83 mm1.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545750279
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $18,028 AUD|Low: $13,589 AUD|High: $33,390 AUD|Avg: $18,486 AUD|-4.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
June 17, 2026
Retailer 3$13,589 AUD
Retailer 2$13,656 AUD
Retailer 12$15,441 AUD
Retailer 11$16,399 AUD
Retailer 9$16,908 AUD
Retailer 5$17,155 AUD
Retailer 8$17,952 AUD
Retailer 10$17,961 AUD
Brilliant Earth$18,028 AUD
Retailer 6$18,069 AUD
Retailer 7$18,401 AUD
Retailer 4$33,390 AUD

45 data points across 12 retailers

1 retailer

B+
Brilliant Earth
19089301A · Nov 4
$18,028 AUD
$12,620 USD
View

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
$18,028 AUD