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Cushion|Natural|GIA

1.05ct K IF Cushion Natural Diamond

EX • K/IF • GIA 1539156388

Certificate GIA 1539156388

Diamond specifications and retailer prices

From $1,580 USD
As of November 6, 2026
Save $922 USD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,502 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539156388. Listed at 6 retailers as of November 4, 2026, with prices from $1,580 to $2,502, a $922 spread on the same certified stone. MOH London lists it at $2,502. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
K
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539156388
Dimensions5.67 × 5.64 × 3.83 mm
L/W Ratio1.01
Top View
5.67 mm5.64 mm1.05 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539156388
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

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: $2,502 USD|Low: $1,555 USD|High: $2,664 USD|Avg: $1,877 USD|-5.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$1,580 USD
Retailer 6$1,643 USD
Retailer 5$1,700 USD
Retailer 4$1,747 USD
Retailer 2$1,983 USD
MOH London$2,502 USD

37 data points across 6 retailers

6 retailers$1,580 USD to $2,502 USD

A
Cheapest Retailer
-
$1,580 USD
A
Retailer 2
-
$1,643 USD
View
A
Retailer 3
-
$1,700 USD
View
A
Retailer 4
-
$1,747 USD
View
B+
Retailer 5
-
$1,983 USD
View
Most Expensive
B+
MOH London
936224042 · Nov 4
$2,502 USD
£1,970 GBP
View
5 more retailers have this diamond
Prices start from $1,580 USDSave up to $922 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.

A
1.05ct Cushion
$1,580 USD