CaratHunter
Plans
Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5406613135

Certificate GIA 5406613135

Diamond specifications and retailer prices

From $3,030 USD
As of November 6, 2026
Save $2,811 USD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,841 USD 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 $3,030 to $5,841, a $2,811 spread on the same certified stone. MOH London lists it at $5,841. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,841 USD|Low: $3,030 USD|High: $5,927 USD|Avg: $4,189 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$3,030 USD
Retailer 5$3,444 USD
Retailer 3$3,637 USD
Retailer 2$3,883 USD
Retailer 6$5,105 USD
MOH London$5,841 USD

43 data points across 6 retailers

7 retailers$3,030 USD to $5,841 USD

A
Cheapest Retailer
-
$3,030 USD
A
Retailer 2
-
$3,133 USD
View
A
Retailer 3
-
$3,365 USD
View
A
Retailer 4
-
$3,444 USD
View
A
Retailer 5
-
$3,637 USD
View
B+
Retailer 6
-
$3,883 USD
View
Most Expensive
B
MOH London
6FB1F8477 · Nov 4
$5,841 USD
£4,599 GBP
View
6 more retailers have this diamond
Prices start from $3,030 USDSave up to $2,811 USD

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
$3,030 USD