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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 $3,078 NZD
$1,735 USD
As of October 30, 2026
Save $1,387 NZD (31%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,466 NZD 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 $3,078 to $4,466, a $1,387 spread on the same certified stone. Yorxs lists it at $4,466. 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: $3,550 NZD|Low: $3,078 NZD|High: $5,017 NZD|Avg: $3,793 NZD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 1, 2026
Retailer 5$3,078 NZD
Retailer 2$3,130 NZD
Retailer 3$3,314 NZD
Retailer 1$3,550 NZD
Retailer 4$3,953 NZD
Yorxs$4,466 NZD
Retailer 6$5,017 NZD

40 data points across 7 retailers

9 retailers$3,078 NZD to $4,466 NZD

B+
Cheapest Retailer
-
$3,078 NZD
$1,735 USD
B+
Retailer 2
-
$3,130 NZD
SGD 2,384 SGD
View
B+
Retailer 3
-
$3,249 NZD
$1,831 USD
View
B
Retailer 4
-
$3,314 NZD
$1,868 USD
View
B
Retailer 5
-
$3,550 NZD
£1,575 GBP
View
B
Retailer 6
-
$3,953 NZD
A$3,428 AUD
View
B
Retailer 7
-
$4,005 NZD
$2,257 USD
View
B
Retailer 8
-
$4,037 NZD
CA$3,160 CAD
View
Most Expensive
B
Yorxs
240153377 · Oct 31
$4,466 NZD
€2,397 EUR
View
8 more retailers have this diamond
Prices start from $3,078 NZDSave up to $1,387 NZD

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
$3,078 NZD