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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 $5,295 AUD
As of November 6, 2026
Save $5,895 AUD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,190 AUD 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 $5,295 to $11,190, a $5,895 spread on the same certified stone. MOH London lists it at $11,190. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,190 AUD|Low: $5,295 AUD|High: $11,281 AUD|Avg: $7,472 AUD|-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$5,295 AUD
Retailer 7$6,638 AUD
Retailer 3$6,835 AUD
Retailer 6$6,941 AUD
Retailer 8$7,117 AUD
Retailer 9$7,412 AUD
Retailer 4$7,495 AUD
Retailer 5$8,594 AUD
MOH London$11,190 AUD

28 data points across 9 retailers

13 retailers$5,295 AUD to $11,190 AUD

A
Cheapest Retailer
-
$5,295 AUD
B+
Retailer 2
-
$6,143 AUD
View
B+
Retailer 3
-
$6,462 AUD
View
B+
Retailer 4
-
$6,637 AUD
View
B+
Retailer 5
-
$6,638 AUD
View
B+
Retailer 6
-
$6,835 AUD
View
B+
Retailer 7
-
$6,941 AUD
View
Retailer 8
-
$7,117 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
$7,408 AUD
View
Price last confirmed 39 days ago
B
Retailer 10
-
$7,412 AUD
View
B
Retailer 11
-
$7,495 AUD
View
B
Retailer 12
-
$8,594 AUD
View
Most Expensive
B
MOH London
426D53C74 · Nov 4
$11,190 AUD
£6,054 GBP
View
12 more retailers have this diamond
Prices start from $5,295 AUDSave up to $5,895 AUD

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
$5,295 AUD