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Cushion|Natural|GIA

0.80ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 6435228957

Certificate GIA 6435228957

Diamond specifications and retailer prices

From $2,470 AUD
$1,735 USD
As of October 30, 2026
Save $1,113 AUD (31%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,583 AUD at Yorxs · As of October 31, 2026
View at Yorxs

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6435228957. Listed at 9 retailers as of October 30, 2026, with prices from $2,470 to $3,583, a $1,113 spread on the same certified stone. Yorxs lists it at $3,583. 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

0.80
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6435228957
Dimensions5.49 × 4.89 × 3.39 mm
L/W Ratio1.12
Top View
5.49 mm4.89 mm0.80 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6435228957
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.4%

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: Oct 30
Current: $2,848 AUD|Low: $2,470 AUD|High: $4,025 AUD|Avg: $3,044 AUD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 1, 2026
Retailer 5$2,470 AUD
Retailer 2$2,511 AUD
Retailer 3$2,659 AUD
Retailer 1$2,848 AUD
Retailer 4$3,172 AUD
Yorxs$3,583 AUD
Retailer 6$4,025 AUD

41 data points across 7 retailers

9 retailers$2,470 AUD to $3,583 AUD

B+
Cheapest Retailer
-
$2,470 AUD
$1,735 USD
B+
Retailer 2
-
$2,511 AUD
SGD 2,384 SGD
View
B+
Retailer 3
-
$2,607 AUD
$1,831 USD
View
B
Retailer 4
-
$2,659 AUD
$1,868 USD
View
B
Retailer 5
-
$2,848 AUD
£1,575 GBP
View
B
Retailer 6
-
$3,172 AUD
View
B
Retailer 7
-
$3,213 AUD
$2,257 USD
View
B
Retailer 8
-
$3,239 AUD
CA$3,160 CAD
View
Most Expensive
B
Yorxs
240153377 · Oct 31
$3,583 AUD
€2,397 EUR
View
8 more retailers have this diamond
Prices start from $2,470 AUDSave up to $1,113 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+
0.80ct Cushion
$2,470 AUD