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Cushion|Natural|GIA

1.00ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 1186397700

Certificate GIA 1186397700

Diamond specifications and retailer prices

From $1,638 CAD
$1,170 USD
As of October 29, 2026
Save $2,067 CAD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,704 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1186397700. Listed at 18 retailers as of October 29, 2026, with prices from $1,638 to $3,704, a $2,067 spread on the same certified stone. MOH London lists it at $3,704. 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1186397700
Dimensions5.87 × 5.72 × 3.69 mm
L/W Ratio1.03
Top View
5.87 mm5.72 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1186397700
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NDepth 64.6%

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: Oct 29
Current: $3,704 CAD|Low: $1,365 CAD|High: $8,131 CAD|Avg: $2,292 CAD|+0.4%
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 12$1,638 CAD
Retailer 15$1,652 CAD
Retailer 13$1,758 CAD
Retailer 7$1,765 CAD
Retailer 9$1,781 CAD
Retailer 4$1,811 CAD
Retailer 17$1,905 CAD
Retailer 3$2,003 CAD
Retailer 5$2,023 CAD
Retailer 8$2,062 CAD
Retailer 18$2,104 CAD
Retailer 10$2,209 CAD
Retailer 2$2,341 CAD
Retailer 16$2,375 CAD
Retailer 6$2,597 CAD
Retailer 11$2,869 CAD
Retailer 14$3,002 CAD
MOH London$3,704 CAD

45 data points across 18 retailers

18 retailers$1,638 CAD to $3,704 CAD

A
Cheapest Retailer
-
$1,638 CAD
$1,170 USD
A
Retailer 2
-
$1,652 CAD
$1,180 USD
View
A
Retailer 3
-
$1,758 CAD
$1,256 USD
View
Final sale: no returns
A
Retailer 4
-
$1,765 CAD
$1,261 USD
View
A
Retailer 5
-
$1,781 CAD
$1,272 USD
View
A
Retailer 6
-
$1,811 CAD
$1,294 USD
View
A
Retailer 7
-
$1,905 CAD
$1,361 USD
View
A
Retailer 8
-
$2,003 CAD
$1,431 USD
View
A
Retailer 9
-
$2,023 CAD
$1,445 USD
View
A
Retailer 10
-
$2,062 CAD
$1,473 USD
View
Retailer 11
-
$2,104 CAD
£1,184 GBP
View
Price last confirmed 30 days ago
A
Retailer 12
-
$2,209 CAD
$1,578 USD
View
A
Retailer 13
-
$2,341 CAD
£1,317 GBP
View
B+
Retailer 14
-
$2,375 CAD
$1,697 USD
View
B+
Retailer 15
-
$2,597 CAD
View
B+
Retailer 16
-
$2,869 CAD
€1,952 EUR
View
B+
Retailer 17
-
$3,002 CAD
$2,145 USD
View
Most Expensive
B+
MOH London
ED67DCC65 · Oct 29
$3,704 CAD
£2,084 GBP
View
17 more retailers have this diamond
Prices start from $1,638 CADSave up to $2,067 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
$1,638 CAD