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Cushion|Natural|GIA

1.00ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 1398673309

Certificate GIA 1398673309

Diamond specifications and retailer prices

From $2,304 CAD
As of November 6, 2026
Save $3,116 CAD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,420 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1398673309. Listed at 15 retailers as of November 4, 2026, with prices from $2,304 to $5,420, a $3,116 spread on the same certified stone. MOH London lists it at $5,420. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1398673309
Dimensions5.85 × 5.77 × 3.89 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle, Natural
Top View
5.85 mm5.77 mm1.00 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1398673309
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,420 CAD|Low: $2,286 CAD|High: $6,165 CAD|Avg: $3,553 CAD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12$2,304 CAD
Retailer 4$2,720 CAD
Retailer 13$2,862 CAD
Retailer 14$2,943 CAD
Retailer 2$3,009 CAD
Retailer 15$3,123 CAD
Retailer 9$3,204 CAD
Retailer 5$3,249 CAD
Retailer 7$3,297 CAD
Retailer 10$3,370 CAD
Retailer 11$3,785 CAD
Retailer 3$3,813 CAD
Retailer 8$3,851 CAD
MOH London$5,420 CAD
Retailer 6$6,165 CAD

31 data points across 15 retailers

15 retailers$2,304 CAD to $5,420 CAD

A
Cheapest Retailer
-
$2,304 CAD
B+
Retailer 2
-
$2,720 CAD
View
B+
Retailer 3
-
$2,802 CAD
View
B+
Retailer 4
-
$2,862 CAD
View
Final sale: no returns
B+
Retailer 5
-
$2,943 CAD
View
B+
Retailer 6
-
$3,009 CAD
View
B+
Retailer 7
-
$3,123 CAD
View
B+
Retailer 8
-
$3,204 CAD
View
B+
Retailer 9
-
$3,249 CAD
View
B+
Retailer 10
-
$3,297 CAD
View
B+
Retailer 11
-
$3,370 CAD
View
B+
Retailer 12
-
$3,785 CAD
View
Retailer 13
-
$3,813 CAD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$3,851 CAD
View
Most Expensive
B
MOH London
A64957593 · Nov 4
$5,420 CAD
£3,034 GBP
View
14 more retailers have this diamond
Prices start from $2,304 CADSave up to $3,116 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.

A
1.00ct Cushion
$2,304 CAD