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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1545692555

Certificate GIA 1545692555

Diamond specifications and retailer prices

From $3,366 USD
As of November 6, 2026
Save $3,708 USD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,074 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 1545692555. Listed at 14 retailers as of November 4, 2026, with prices from $3,366 to $7,074, a $3,708 spread on the same certified stone. MOH London lists it at $7,074. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545692555
Dimensions8.17 × 6.09 × 4.13 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural
Top View
8.17 mm6.09 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545692555
Side View
Table 63.0%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: $7,074 USD|Low: $3,366 USD|High: $7,779 USD|Avg: $4,876 USD|-9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$3,366 USD
Retailer 2$3,564 USD
Retailer 11$3,984 USD
Retailer 10$4,250 USD
Retailer 6$4,285 USD
Retailer 9$4,309 USD
Retailer 7$4,484 USD
Retailer 12$4,580 USD
Retailer 4$4,814 USD
Retailer 5$5,011 USD
Retailer 8$5,434 USD
MOH London$7,074 USD

29 data points across 12 retailers

14 retailers$3,366 USD to $7,074 USD

A
Cheapest Retailer
-
$3,366 USD
A
Retailer 2
-
$3,564 USD
View
B+
Retailer 3
-
$3,984 USD
View
B+
Retailer 4
-
$4,250 USD
View
B+
Retailer 5
-
$4,285 USD
View
B+
Retailer 6
-
$4,309 USD
View
B+
Retailer 7
-
$4,455 USD
View
B+
Retailer 8
-
$4,484 USD
View
B+
Retailer 9
-
$4,580 USD
View
B+
Retailer 10
-
$4,730 USD
View
Retailer 11
-
$4,814 USD
View
Price last confirmed 22 days ago
B
Retailer 12
-
$5,011 USD
View
B+
Retailer 13
-
$5,434 USD
View
Most Expensive
B
MOH London
43B26F09F · Nov 4
$7,074 USD
£5,570 GBP
View
13 more retailers have this diamond
Prices start from $3,366 USDSave up to $3,708 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
$3,366 USD