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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6555228607

Certificate GIA 6555228607

Diamond specifications and retailer prices

From $1,813 NZD
As of November 6, 2026
Save $624 NZD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,437 NZD at GemTrove · As of November 6, 2026
View at GemTrove

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 6555228607. Listed at 7 retailers as of November 6, 2026, with prices from $1,813 to $2,437, a $624 spread on the same certified stone. GemTrove lists it at $2,437. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555228607
Dimensions5.56 × 5.44 × 3.70 mm
L/W Ratio1.02
Top View
5.56 mm5.44 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555228607
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.0%

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: $2,437 NZD|Low: $1,620 NZD|High: $2,459 NZD|Avg: $2,064 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,813 NZD
Retailer 4$1,818 NZD
Retailer 3$1,892 NZD
Retailer 2$1,992 NZD
Retailer 6$2,069 NZD
Retailer 5$2,226 NZD
GemTrove$2,437 NZD

40 data points across 7 retailers

7 retailers$1,813 NZD to $2,437 NZD

A
Cheapest Retailer
-
$1,813 NZD
A
Retailer 2
-
$1,818 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,892 NZD
View
A
Retailer 4
-
$1,992 NZD
View
A
Retailer 5
-
$2,069 NZD
View
A
Retailer 6
-
$2,226 NZD
View
Most Expensive
B+
GemTrove
GT-N-00979294-98 · Nov 6
$2,437 NZD
A$2,078 AUD
View
6 more retailers have this diamond
Prices start from $1,813 NZDSave up to $624 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
$1,813 NZD