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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5406613135

Certificate GIA 5406613135

Diamond specifications and retailer prices

From $4,262 CAD
As of November 6, 2026
Save $3,954 CAD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,216 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 5406613135. Listed at 7 retailers as of November 4, 2026, with prices from $4,262 to $8,216, a $3,954 spread on the same certified stone. MOH London lists it at $8,216. 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 5406613135
Dimensions6.87 × 6.51 × 4.56 mm
L/W Ratio1.06
Top View
6.87 mm6.51 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5406613135
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 70.1%

Caratlytics Score

How it works →
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: $8,216 CAD|Low: $4,262 CAD|High: $8,337 CAD|Avg: $5,892 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$4,262 CAD
Retailer 5$4,844 CAD
Retailer 3$5,116 CAD
Retailer 2$5,462 CAD
Retailer 6$7,181 CAD
MOH London$8,216 CAD

43 data points across 6 retailers

7 retailers$4,262 CAD to $8,216 CAD

A
Cheapest Retailer
-
$4,262 CAD
A
Retailer 2
-
$4,407 CAD
View
A
Retailer 3
-
$4,733 CAD
View
A
Retailer 4
-
$4,844 CAD
View
A
Retailer 5
-
$5,116 CAD
View
B+
Retailer 6
-
$5,462 CAD
View
Most Expensive
B
MOH London
6FB1F8477 · Nov 4
$8,216 CAD
£4,599 GBP
View
6 more retailers have this diamond
Prices start from $4,262 CADSave up to $3,954 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
$4,262 CAD