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Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6147515389

Certificate GIA 6147515389

Diamond specifications and retailer prices

From $2,859 CAD
$2,047 USD
As of November 1, 2026
Save $1,349 CAD (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,208 CAD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6147515389. Listed at 2 retailers as of November 1, 2026, with prices from $2,859 to $4,208, a $1,349 spread on the same certified stone. 77 Diamonds lists it at $4,208. 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

1.05
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6147515389
Dimensions6.43 × 5.36 × 3.86 mm
L/W Ratio1.20
Top View
6.43 mm5.36 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6147515389
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $4,208 CAD|Low: $4,145 CAD|High: $4,243 CAD|Avg: $4,213 CAD|+1.4%
November 1, 2026
77 Diamonds$4,208 CAD

31 data points across 1 retailer

2 retailers$2,859 CAD to $4,208 CAD

B
Cheapest Retailer
-
$2,859 CAD
$2,047 USD
Most Expensive
C
77 Diamonds
CUSZZBTVTUQP · Nov 1
$4,208 CAD
£2,372 GBP
View
1 more retailer has this diamond
Prices start from $2,859 CADSave up to $1,349 CAD

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
1.05ct Cushion
$2,859 CAD