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Cushion|Natural|GIA

3.00ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 6552900078

Certificate GIA 6552900078

Diamond specifications and retailer prices

From $58,625 AUD
As of November 6, 2026
Save $16,468 AUD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $75,093 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3ct natural cushion diamond

This 3ct natural cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6552900078. Listed at 6 retailers as of October 31, 2026, with prices from $58,625 to $75,093, a $16,468 spread on the same certified stone. Blue Nile lists it at $75,093. 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

3.00
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552900078
Dimensions10.09 × 7.32 × 4.93 mm
L/W Ratio1.38
Top View
10.09 mm7.32 mm3.00 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552900078
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.3%

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 6
Current: $75,093 AUD|Low: $58,625 AUD|High: $75,093 AUD|Avg: $63,591 AUD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$58,625 AUD
Retailer 2$58,814 AUD
Retailer 6$60,977 AUD
Retailer 5$64,636 AUD
Retailer 4$68,803 AUD
Blue Nile$75,093 AUD

38 data points across 6 retailers

6 retailers$58,625 AUD to $75,093 AUD

B+
Cheapest Retailer
-
$58,625 AUD
B+
Retailer 2
-
$58,814 AUD
View
B+
Retailer 3
-
$60,977 AUD
View
Final sale: no returns
Retailer 4
-
$64,636 AUD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$68,803 AUD
View
Most Expensive
B
Blue Nile
30380820 · Oct 31
$75,093 AUD
$51,596 USD
View
5 more retailers have this diamond
Prices start from $58,625 AUDSave up to $16,468 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+
3.00ct Cushion
$58,625 AUD