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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 7558661636

Certificate GIA 7558661636

Diamond specifications and retailer prices

From $1,616 NZD
As of November 6, 2026
Save $2,379 NZD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,995 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 7558661636. Listed at 14 retailers as of November 4, 2026, with prices from $1,616 to $3,995, a $2,379 spread on the same certified stone. MOH London lists it at $3,995. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558661636
Dimensions5.61 × 5.29 × 3.91 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Pinpoint
Top View
5.61 mm5.29 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558661636
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.9%

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: $3,995 NZD|Low: $1,627 NZD|High: $4,044 NZD|Avg: $2,542 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,627 NZD
Retailer 11$2,017 NZD
Retailer 9$2,102 NZD
Retailer 10$2,186 NZD
Retailer 8$2,206 NZD
Retailer 5$2,258 NZD
Retailer 6$2,455 NZD
Retailer 7$2,668 NZD
Retailer 3$2,859 NZD
Retailer 4$3,040 NZD
MOH London$3,995 NZD

35 data points across 11 retailers

14 retailers$1,616 NZD to $3,995 NZD

A
Cheapest Retailer
-
$1,616 NZD
A
Retailer 2
-
$1,627 NZD
View
A
Retailer 3
-
$2,017 NZD
View
Final sale: no returns
B+
Retailer 4
-
$2,094 NZD
View
A
Retailer 5
-
$2,102 NZD
View
Retailer 6
-
$2,186 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,206 NZD
View
B+
Retailer 8
-
$2,258 NZD
View
B+
Retailer 9
-
$2,428 NZD
View
B+
Retailer 10
-
$2,455 NZD
View
B+
Retailer 11
-
$2,668 NZD
View
Retailer 12
-
$2,859 NZD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
$3,040 NZD
View
Most Expensive
B
MOH London
73F05D08F · Nov 4
$3,995 NZD
£1,744 GBP
View
13 more retailers have this diamond
Prices start from $1,616 NZDSave up to $2,379 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
$1,616 NZD