CaratHunter
Plans
Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5182654799

Certificate GIA 5182654799

Diamond specifications and retailer prices

From $4,333 NZD
$2,437 USD
As of November 1, 2026
Save $4,600 NZD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,933 NZD 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 $4,333 to $8,933, a $4,600 spread on the same certified stone. MOH London lists it at $8,933. 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
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

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,933 NZD|Low: $4,765 NZD|High: $9,041 NZD|Avg: $6,120 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7$4,765 NZD
Retailer 6$4,840 NZD
Retailer 5$5,707 NZD
Retailer 3$5,711 NZD
Retailer 2$6,228 NZD
Retailer 4$6,566 NZD
MOH London$8,933 NZD

44 data points across 7 retailers

11 retailers$4,333 NZD to $8,933 NZD

B
Cheapest Retailer
-
$4,333 NZD
$2,437 USD
B
Retailer 2
-
$4,765 NZD
$2,680 USD
View
B
Retailer 3
-
$4,840 NZD
$2,722 USD
View
B
Retailer 4
-
$5,487 NZD
$3,086 USD
View
B
Retailer 5
-
$5,528 NZD
$3,109 USD
View
Retailer 6
-
$5,707 NZD
A$4,938 AUD
View
Price last confirmed 27 days ago
B
Retailer 7
-
$5,711 NZD
£2,529 GBP
View
Retailer 8
-
$6,200 NZD
$3,487 USD
View
Price last confirmed 11 days ago
B
Retailer 9
-
$6,228 NZD
€3,336 EUR
View
B
Retailer 10
-
$6,566 NZD
ZAR 59,659 ZAR
View
Most Expensive
B
MOH London
BC771DE4D · Nov 1
$8,933 NZD
£3,956 GBP
View
10 more retailers have this diamond
Prices start from $4,333 NZDSave up to $4,600 NZD

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
$4,333 NZD