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Cushion|Natural|GIA

1.40ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 1547700645

Shape and cutting style on the report: Old miner

Certificate GIA 1547700645

Diamond specifications and retailer prices

From $6,449 AUD
As of November 4, 2026
Save $1,563 AUD (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $8,012 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.4ct natural cushion diamond

This 1.4ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 1547700645. Listed at 4 retailers as of November 4, 2026, with prices from $6,449 to $8,012, a $1,563 spread on the same certified stone. Yorxs lists it at $8,012. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1547700645
Dimensions6.30 × 6.27 × 4.38 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.30 mm6.27 mm1.40 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1547700645
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

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: $6,449 AUD|Low: $6,449 AUD|High: $8,610 AUD|Avg: $7,209 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 1$6,449 AUD
Retailer 2$6,449 AUD
Retailer 3$6,525 AUD
Yorxs$8,012 AUD
Retailer 4$8,610 AUD

16 data points across 5 retailers

4 retailers$6,449 AUD to $8,012 AUD

B+
Cheapest Retailer
-
$6,449 AUD
Retailer 2
-
$6,449 AUD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$6,525 AUD
View
Most Expensive
B
Yorxs
CD9AB9967 · Nov 6
$8,012 AUD
€5,243 EUR
View
3 more retailers have this diamond
Prices start from $6,449 AUDSave up to $1,563 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+
1.40ct Cushion
$6,449 AUD