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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1548357729

Certificate GIA 1548357729

Diamond specifications and retailer prices

From $1,863 NZD
As of November 6, 2026
Save $2,709 NZD (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,573 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct 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 1548357729. Listed at 13 retailers as of November 4, 2026, with prices from $1,863 to $4,573, a $2,709 spread on the same certified stone. MOH London lists it at $4,573. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1548357729
Dimensions7.44 × 5.05 × 3.42 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
7.44 mm5.05 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1548357729
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.8%

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 6
Current: $4,573 NZD|Low: $1,784 NZD|High: $4,678 NZD|Avg: $2,770 NZD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 2$1,863 NZD
Retailer 12$1,963 NZD
Retailer 13$2,320 NZD
Retailer 3$2,471 NZD
Retailer 4$2,504 NZD
Retailer 14$2,668 NZD
Retailer 10$2,688 NZD
Retailer 9$2,724 NZD
Retailer 5$2,756 NZD
Retailer 6$2,776 NZD
Retailer 8$3,054 NZD
Retailer 7$3,236 NZD
Retailer 11$3,265 NZD
MOH London$4,573 NZD

41 data points across 14 retailers

13 retailers$1,863 NZD to $4,573 NZD

A
Cheapest Retailer
-
$1,863 NZD
A
Retailer 2
-
$1,963 NZD
View
Final sale: no returns
B+
Retailer 3
-
$2,320 NZD
View
Retailer 4
-
$2,504 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,668 NZD
View
B+
Retailer 6
-
$2,688 NZD
View
Retailer 7
-
$2,724 NZD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$2,756 NZD
View
B+
Retailer 9
-
$2,776 NZD
View
B+
Retailer 10
-
$3,054 NZD
View
B+
Retailer 11
-
$3,236 NZD
View
Retailer 12
-
$3,265 NZD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
1B1A84F62 · Nov 4
$4,573 NZD
£1,996 GBP
View
12 more retailers have this diamond
Prices start from $1,863 NZDSave up to $2,709 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.

A
1.00ct Cushion
$1,863 NZD