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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1558712621

Certificate GIA 1558712621

Diamond specifications and retailer prices

From $2,784 CAD
As of November 6, 2026
Save $3,144 CAD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,927 CAD at MOH London · As of November 7, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558712621. Listed at 22 retailers as of November 6, 2026, with prices from $2,784 to $5,927, a $3,144 spread on the same certified stone. MOH London lists it at $5,927. 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

1.30
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 1558712621
Dimensions6.25 × 6.10 × 4.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.25 mm6.10 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558712621
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,927 CAD|Low: $2,529 CAD|High: $6,229 CAD|Avg: $3,745 CAD|-4.6%
MOH London
Retailer 2
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Retailer 24
November 7, 2026
Retailer 12$2,574 CAD
Retailer 9$2,654 CAD
Retailer 20$2,784 CAD
Retailer 18$2,844 CAD
Retailer 19$2,882 CAD
Retailer 13$3,102 CAD
Retailer 16$3,196 CAD
Retailer 3$3,298 CAD
Retailer 10$3,328 CAD
Retailer 11$3,348 CAD
Retailer 21$3,390 CAD
Retailer 7$3,466 CAD
Retailer 5$3,559 CAD
Retailer 23$3,559 CAD
Retailer 2$3,598 CAD
Retailer 15$3,622 CAD
Retailer 24$3,685 CAD
Retailer 14$3,812 CAD
Retailer 17$3,933 CAD
Retailer 8$4,021 CAD
Retailer 22$4,155 CAD
Retailer 4$4,224 CAD
Retailer 6$4,273 CAD
MOH London$5,927 CAD

22 data points across 24 retailers

22 retailers$2,784 CAD to $5,927 CAD

Retailer 1
-
$2,574 CAD
Price last confirmed 18 days ago
Retailer 2
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$2,654 CAD
View
Price last confirmed 18 days ago
A
Retailer 3
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$2,784 CAD
View
A
Retailer 4
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$2,844 CAD
View
Final sale: no returns
A
Retailer 5
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$2,882 CAD
View
A
Retailer 6
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$3,102 CAD
View
Retailer 7
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$3,196 CAD
View
Price last confirmed 23 days ago
A
Retailer 8
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$3,298 CAD
View
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Retailer 9
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$3,390 CAD
View
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Retailer 10
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$3,466 CAD
View
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Retailer 11
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$3,536 CAD
View
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Retailer 12
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$3,559 CAD
View
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Retailer 13
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$3,559 CAD
View
A
Retailer 14
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$3,598 CAD
View
Retailer 15
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$3,622 CAD
View
Price last confirmed 17 days ago
A
Retailer 16
-
$3,685 CAD
View
Retailer 17
-
$3,812 CAD
View
Price last confirmed 17 days ago
Retailer 18
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$3,933 CAD
View
Price last confirmed 37 days ago
A
Retailer 19
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$4,155 CAD
View
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Retailer 20
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$4,224 CAD
View
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Retailer 21
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$4,273 CAD
View
Most Expensive
B+
MOH London
0FE1DCF9E · Nov 7
$5,927 CAD
£3,318 GBP
View
21 more retailers have this diamond
Prices start from $2,784 CADSave up to $3,144 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
1.30ct Cushion
$2,784 CAD