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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 6425709135

Certificate GIA 6425709135

Diamond specifications and retailer prices

From $2,109 NZD
As of November 6, 2026
Save $2,171 NZD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,280 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6425709135. Listed at 10 retailers as of November 4, 2026, with prices from $2,109 to $4,280, a $2,171 spread on the same certified stone. MOH London lists it at $4,280. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425709135
Dimensions5.48 × 5.41 × 3.74 mm
L/W Ratio1.01
Top View
5.48 mm5.41 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6425709135
Side View
Table 57.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 69.1%

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: $4,280 NZD|Low: $2,109 NZD|High: $4,341 NZD|Avg: $2,601 NZD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$2,109 NZD
Retailer 2$2,143 NZD
Retailer 8$2,161 NZD
Retailer 10$2,170 NZD
Retailer 3$2,304 NZD
Retailer 6$2,343 NZD
Retailer 9$2,498 NZD
Retailer 5$2,632 NZD
Retailer 4$3,251 NZD
MOH London$4,280 NZD

29 data points across 10 retailers

10 retailers$2,109 NZD to $4,280 NZD

A
Cheapest Retailer
-
$2,109 NZD
A
Retailer 2
-
$2,143 NZD
View
A
Retailer 3
-
$2,161 NZD
View
Final sale: no returns
A
Retailer 4
-
$2,170 NZD
View
A
Retailer 5
-
$2,304 NZD
View
Retailer 6
-
$2,343 NZD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$2,498 NZD
View
A
Retailer 8
-
$2,632 NZD
View
B+
Retailer 9
-
$3,251 NZD
View
Most Expensive
B+
MOH London
F1C310B20 · Nov 4
$4,280 NZD
£1,868 GBP
View
9 more retailers have this diamond
Prices start from $2,109 NZDSave up to $2,171 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
$2,109 NZD