Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 6371933957

Certificate GIA 6371933957

Diamond specifications and retailer prices

From $1,642 USD
As of November 6, 2026
Save $936 USD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,578 USD 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 $1,642 to $2,578, a $936 spread on the same certified stone. Yorxs lists it at $2,578. 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
Color
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: $1,813 USD|Low: $1,642 USD|High: $2,584 USD|Avg: $1,879 USD|+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$1,642 USD
Retailer 2$1,666 USD
Retailer 6$1,666 USD
Retailer 7$1,713 USD
Retailer 9$1,761 USD
Retailer 8$1,771 USD
Retailer 1$1,813 USD
Retailer 10$1,860 USD
Retailer 3$1,887 USD
Retailer 5$1,919 USD
Retailer 11$1,980 USD
Retailer 4$2,181 USD
Yorxs$2,578 USD

23 data points across 13 retailers

10 retailers$1,642 USD to $2,578 USD

B
Cheapest Retailer
-
$1,642 USD
B
Retailer 2
-
$1,666 USD
View
B
Retailer 3
-
$1,666 USD
View
B
Retailer 4
-
$1,713 USD
View
B
Retailer 5
-
$1,761 USD
View
B
Retailer 6
-
$1,813 USD
View
B
Retailer 7
-
$1,860 USD
View
B
Retailer 8
-
$1,919 USD
View
B
Retailer 9
-
$1,980 USD
View
Most Expensive
C
Yorxs
518346514 · Nov 6
$2,578 USD
€2,455 EUR
View
9 more retailers have this diamond
Prices start from $1,642 USDSave up to $936 USD

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
$1,642 USD