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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5563208516

Certificate GIA 5563208516

Diamond specifications and retailer prices

From $3,638 USD
As of November 6, 2026
Save $4,051 USD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,689 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 5563208516. Listed at 13 retailers as of November 4, 2026, with prices from $3,638 to $7,689, a $4,051 spread on the same certified stone. MOH London lists it at $7,689. 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 5563208516
Dimensions8.47 × 6.05 × 4.04 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
8.47 mm6.05 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5563208516
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 66.8%

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: $7,689 USD|Low: $3,638 USD|High: $7,751 USD|Avg: $5,134 USD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$3,638 USD
Retailer 7$4,561 USD
Retailer 3$4,696 USD
Retailer 6$4,769 USD
Retailer 8$4,890 USD
Retailer 9$5,093 USD
Retailer 4$5,150 USD
Retailer 5$5,905 USD
MOH London$7,689 USD

28 data points across 9 retailers

13 retailers$3,638 USD to $7,689 USD

A
Cheapest Retailer
-
$3,638 USD
B+
Retailer 2
-
$4,221 USD
View
B+
Retailer 3
-
$4,440 USD
View
B+
Retailer 4
-
$4,560 USD
View
B+
Retailer 5
-
$4,561 USD
View
B+
Retailer 6
-
$4,696 USD
View
B+
Retailer 7
-
$4,769 USD
View
Retailer 8
-
$4,890 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$5,090 USD
View
Price last confirmed 39 days ago
B
Retailer 10
-
$5,093 USD
View
B
Retailer 11
-
$5,150 USD
View
B
Retailer 12
-
$5,905 USD
View
Most Expensive
B
MOH London
426D53C74 · Nov 4
$7,689 USD
£6,054 GBP
View
12 more retailers have this diamond
Prices start from $3,638 USDSave up to $4,051 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
$3,638 USD