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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2557529237

Certificate GIA 2557529237

Diamond specifications and retailer prices

From $5,365 CAD
As of November 6, 2026
Save $5,991 CAD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,356 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557529237. Listed at 14 retailers as of November 4, 2026, with prices from $5,365 to $11,356, a $5,991 spread on the same certified stone. MOH London lists it at $11,356. 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

1.70
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557529237
Dimensions8.19 × 6.11 × 4.14 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Pinpoint
Top View
8.19 mm6.11 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557529237
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

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: $11,356 CAD|Low: $5,365 CAD|High: $11,619 CAD|Avg: $7,636 CAD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$5,365 CAD
Retailer 2$5,642 CAD
Retailer 7$6,424 CAD
Retailer 3$6,936 CAD
Retailer 5$7,040 CAD
Retailer 10$7,362 CAD
Retailer 8$7,542 CAD
Retailer 4$8,046 CAD
Retailer 6$8,722 CAD
MOH London$11,356 CAD

25 data points across 10 retailers

14 retailers$5,365 CAD to $11,356 CAD

A
Cheapest Retailer
-
$5,365 CAD
B+
Retailer 2
-
$5,642 CAD
View
B+
Retailer 3
-
$6,424 CAD
View
B+
Retailer 4
-
$6,643 CAD
View
B+
Retailer 5
-
$6,646 CAD
View
B+
Retailer 6
-
$6,936 CAD
View
B
Retailer 7
-
$6,992 CAD
View
B+
Retailer 8
-
$7,040 CAD
View
Retailer 9
-
$7,217 CAD
View
Price last confirmed 22 days ago
B
Retailer 10
-
$7,362 CAD
View
B+
Retailer 11
-
$7,542 CAD
View
B
Retailer 12
-
$8,046 CAD
View
B
Retailer 13
-
$8,722 CAD
View
Most Expensive
B
MOH London
CDD8FB650 · Nov 4
$11,356 CAD
£6,357 GBP
View
13 more retailers have this diamond
Prices start from $5,365 CADSave up to $5,991 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
1.70ct Cushion
$5,365 CAD