Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5182654799

Certificate GIA 5182654799

Diamond specifications and retailer prices

From $2,437 USD
As of November 1, 2026
Save $2,587 USD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,024 USD at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5182654799. Listed at 11 retailers as of November 1, 2026, with prices from $2,437 to $5,024, a $2,587 spread on the same certified stone. MOH London lists it at $5,024. 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

1.05
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182654799
Dimensions5.92 × 5.91 × 4.09 mm
L/W Ratio1.00
Top View
5.92 mm5.91 mm1.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182654799
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NDepth 69.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $5,024 USD|Low: $2,680 USD|High: $5,085 USD|Avg: $3,439 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$2,680 USD
Retailer 6$2,722 USD
Retailer 5$3,210 USD
Retailer 3$3,212 USD
Retailer 2$3,516 USD
Retailer 4$3,693 USD
MOH London$5,024 USD

44 data points across 7 retailers

11 retailers$2,437 USD to $5,024 USD

B
Cheapest Retailer
-
$2,437 USD
B
Retailer 2
-
$2,680 USD
View
B
Retailer 3
-
$2,722 USD
View
B
Retailer 4
-
$3,086 USD
View
B
Retailer 5
-
$3,109 USD
View
Retailer 6
-
$3,210 USD
A$4,938 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$3,212 USD
£2,529 GBP
View
Retailer 8
-
$3,487 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$3,516 USD
€3,349 EUR
View
B
Retailer 10
-
$3,693 USD
ZAR 59,659 ZAR
View
Most Expensive
B
MOH London
BC771DE4D · Nov 1
$5,024 USD
£3,956 GBP
View
10 more retailers have this diamond
Prices start from $2,437 USDSave up to $2,587 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
1.05ct Cushion
$2,437 USD