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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 $1,985 USD
As of November 4, 2026
Save $2,376 USD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,361 USD 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 $1,985 to $4,361, a $2,376 spread on the same certified stone. MOH London lists it at $4,361. 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
Color
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: $4,361 USD|Low: $1,978 USD|High: $4,426 USD|Avg: $2,597 USD|-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$1,985 USD
Retailer 7$2,005 USD
Retailer 9$2,130 USD
Retailer 5$2,261 USD
Retailer 8$2,461 USD
Retailer 6$2,471 USD
Retailer 3$2,641 USD
Retailer 2$2,913 USD
MOH London$4,361 USD

44 data points across 9 retailers

12 retailers$1,985 USD to $4,361 USD

B
Cheapest Retailer
-
$1,985 USD
B
Retailer 2
-
$2,005 USD
View
B
Retailer 3
-
$2,033 USD
View
B
Retailer 4
-
$2,043 USD
View
B
Retailer 5
-
$2,130 USD
View
Retailer 6
-
$2,261 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$2,449 USD
View
B
Retailer 8
-
$2,461 USD
View
B
Retailer 9
-
$2,471 USD
View
B
Retailer 10
-
$2,641 USD
View
B
Retailer 11
-
$2,913 USD
View
Most Expensive
B
MOH London
22BBC52F9 · Nov 4
$4,361 USD
£3,434 GBP
View
11 more retailers have this diamond
Prices start from $1,985 USDSave up to $2,376 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.

B
1.06ct Cushion
$1,985 USD