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Cushion|Natural|GIA

1.06ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5172156159

Certificate GIA 5172156159

Diamond specifications and retailer prices

From $2,889 AUD
As of November 4, 2026
Save $3,458 AUD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,347 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.06ct natural cushion diamond

This 1.06ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5172156159. Listed at 12 retailers as of November 4, 2026, with prices from $2,889 to $6,347, a $3,458 spread on the same certified stone. MOH London lists it at $6,347. 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

1.06
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5172156159
Dimensions6.39 × 5.68 × 3.66 mm
L/W Ratio1.13
Top View
6.39 mm5.68 mm1.06 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5172156159
Side View
Table 56.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,347 AUD|Low: $2,889 AUD|High: $6,442 AUD|Avg: $3,778 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$2,889 AUD
Retailer 7$2,918 AUD
Retailer 9$3,100 AUD
Retailer 5$3,291 AUD
Retailer 8$3,582 AUD
Retailer 6$3,596 AUD
Retailer 3$3,844 AUD
Retailer 2$4,240 AUD
MOH London$6,347 AUD

43 data points across 9 retailers

12 retailers$2,889 AUD to $6,347 AUD

B
Cheapest Retailer
-
$2,889 AUD
B
Retailer 2
-
$2,918 AUD
View
B
Retailer 3
-
$2,959 AUD
View
B
Retailer 4
-
$2,973 AUD
View
B
Retailer 5
-
$3,100 AUD
View
Retailer 6
-
$3,291 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$3,564 AUD
View
B
Retailer 8
-
$3,582 AUD
View
B
Retailer 9
-
$3,596 AUD
View
B
Retailer 10
-
$3,844 AUD
View
B
Retailer 11
-
$4,240 AUD
View
Most Expensive
B
MOH London
22BBC52F9 · Nov 4
$6,347 AUD
£3,434 GBP
View
11 more retailers have this diamond
Prices start from $2,889 AUDSave up to $3,458 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.

B
1.06ct Cushion
$2,889 AUD