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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 6371933957

Certificate GIA 6371933957

Diamond specifications and retailer prices

From $2,390 AUD
As of November 6, 2026
Save $1,362 AUD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,752 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6371933957. Listed at 10 retailers as of November 6, 2026, with prices from $2,390 to $3,752, a $1,362 spread on the same certified stone. Yorxs lists it at $3,752. 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

1.00
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6371933957
Dimensions5.57 × 5.57 × 4.09 mm
L/W Ratio1.00
Top View
5.57 mm5.57 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6371933957
Side View
Table 65.0%CrownGirdle: - SPavilionCulet: NoneDepth 73.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,639 AUD|Low: $2,390 AUD|High: $3,761 AUD|Avg: $2,735 AUD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Yorxs
November 6, 2026
Retailer 12$2,390 AUD
Retailer 2$2,425 AUD
Retailer 6$2,425 AUD
Retailer 7$2,493 AUD
Retailer 9$2,563 AUD
Retailer 8$2,578 AUD
Retailer 1$2,639 AUD
Retailer 10$2,707 AUD
Retailer 3$2,746 AUD
Retailer 5$2,793 AUD
Retailer 11$2,882 AUD
Retailer 4$3,174 AUD
Yorxs$3,752 AUD

23 data points across 13 retailers

10 retailers$2,390 AUD to $3,752 AUD

B
Cheapest Retailer
-
$2,390 AUD
B
Retailer 2
-
$2,425 AUD
View
B
Retailer 3
-
$2,425 AUD
View
B
Retailer 4
-
$2,493 AUD
View
B
Retailer 5
-
$2,563 AUD
View
B
Retailer 6
-
$2,639 AUD
View
B
Retailer 7
-
$2,707 AUD
View
B
Retailer 8
-
$2,793 AUD
View
B
Retailer 9
-
$2,882 AUD
View
Most Expensive
C
Yorxs
518346514 · Nov 6
$3,752 AUD
€2,455 EUR
View
9 more retailers have this diamond
Prices start from $2,390 AUDSave up to $1,362 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
1.00ct Cushion
$2,390 AUD