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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 £1,483 GBP
As of November 4, 2026
Save £1,775 GBP (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,258 GBP 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 £1,483 to £3,258, a £1,775 spread on the same certified stone. MOH London lists it at £3,258. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,258 GBP|Low: £1,478 GBP|High: £3,307 GBP|Avg: £1,940 GBP|-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£1,483 GBP
Retailer 7£1,498 GBP
Retailer 9£1,591 GBP
Retailer 5£1,689 GBP
Retailer 8£1,839 GBP
Retailer 6£1,846 GBP
Retailer 3£1,973 GBP
Retailer 2£2,176 GBP
MOH London£3,258 GBP

44 data points across 9 retailers

12 retailers£1,483 GBP to £3,258 GBP

B
Cheapest Retailer
-
£1,483 GBP
B
Retailer 2
-
£1,498 GBP
View
B
Retailer 3
-
£1,519 GBP
View
B
Retailer 4
-
£1,526 GBP
View
B
Retailer 5
-
£1,591 GBP
View
Retailer 6
-
£1,689 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£1,830 GBP
View
B
Retailer 8
-
£1,839 GBP
View
B
Retailer 9
-
£1,846 GBP
View
B
Retailer 10
-
£1,973 GBP
View
B
Retailer 11
-
£2,176 GBP
View
Most Expensive
B
MOH London
22BBC52F9 · Nov 4
£3,258 GBP
View
11 more retailers have this diamond
Prices start from £1,483 GBPSave up to £1,775 GBP

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
£1,483 GBP