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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 €1,778 EUR
As of November 4, 2026
Save €2,128 EUR (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,906 EUR 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 €1,778 to €3,906, a €2,128 spread on the same certified stone. MOH London lists it at €3,906. 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
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Price History

Last verified: Nov 4
Current: €3,906 EUR|Low: €1,778 EUR|High: €3,964 EUR|Avg: €2,325 EUR|-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€1,778 EUR
Retailer 7€1,796 EUR
Retailer 9€1,908 EUR
Retailer 5€2,025 EUR
Retailer 8€2,204 EUR
Retailer 6€2,213 EUR
Retailer 3€2,365 EUR
Retailer 2€2,609 EUR
MOH London€3,906 EUR

43 data points across 9 retailers

12 retailers€1,778 EUR to €3,906 EUR

B
Cheapest Retailer
-
€1,778 EUR
B
Retailer 2
-
€1,796 EUR
View
B
Retailer 3
-
€1,821 EUR
View
B
Retailer 4
-
€1,830 EUR
View
B
Retailer 5
-
€1,908 EUR
View
Retailer 6
-
€2,025 EUR
View
Price last confirmed 9 days ago
B
Retailer 7
-
€2,193 EUR
View
B
Retailer 8
-
€2,204 EUR
View
B
Retailer 9
-
€2,213 EUR
View
B
Retailer 10
-
€2,365 EUR
View
B
Retailer 11
-
€2,609 EUR
View
Most Expensive
B
MOH London
22BBC52F9 · Nov 4
€3,906 EUR
£3,434 GBP
View
11 more retailers have this diamond
Prices start from €1,778 EURSave up to €2,128 EUR

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
€1,778 EUR