CaratHunter
Plans
Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 2235390877

Certificate GIA 2235390877

Diamond specifications and retailer prices

From $1,965 AUD
$1,377 USD
As of November 1, 2026
Save $2,134 AUD (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,099 AUD at MOH London · As of November 2, 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 2235390877. Listed at 12 retailers as of November 1, 2026, with prices from $1,965 to $4,099, a $2,134 spread on the same certified stone. MOH London lists it at $4,099. 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235390877
Dimensions6.08 × 5.45 × 3.74 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.08 mm5.45 mm1.05 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235390877
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,099 AUD|Low: $1,972 AUD|High: $4,148 AUD|Avg: $2,746 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$1,972 AUD
Retailer 5$2,120 AUD
Retailer 7$2,183 AUD
Retailer 3$2,622 AUD
Retailer 4$3,053 AUD
Retailer 2$3,194 AUD
MOH London$4,099 AUD

43 data points across 7 retailers

12 retailers$1,965 AUD to $4,099 AUD

A
Cheapest Retailer
-
$1,965 AUD
$1,377 USD
A
Retailer 2
-
$1,972 AUD
$1,382 USD
View
A
Retailer 3
-
$2,028 AUD
View
A
Retailer 4
-
$2,045 AUD
$1,433 USD
View
B+
Retailer 5
-
$2,120 AUD
$1,486 USD
View
B+
Retailer 6
-
$2,183 AUD
$1,530 USD
View
B+
Retailer 7
-
$2,233 AUD
$1,565 USD
View
B+
Retailer 8
-
$2,564 AUD
$1,797 USD
View
B+
Retailer 9
-
$2,622 AUD
£1,447 GBP
View
Retailer 10
-
$3,053 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$3,194 AUD
€2,132 EUR
View
Most Expensive
B
MOH London
FFDE4FBC7 · Nov 2
$4,099 AUD
£2,262 GBP
View
11 more retailers have this diamond
Prices start from $1,965 AUDSave up to $2,134 AUD

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
$1,965 AUD