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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2507498430

Certificate GIA 2507498430

Diamond specifications and retailer prices

From $4,025 NZD
As of November 6, 2026
Save $3,994 NZD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,018 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507498430. Listed at 16 retailers as of November 4, 2026, with prices from $4,025 to $8,018, a $3,994 spread on the same certified stone. MOH London lists it at $8,018. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2507498430
Dimensions7.31 × 5.34 × 3.57 mm
L/W Ratio1.37
Top View
7.31 mm5.34 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2507498430
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

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 6
Current: $8,018 NZD|Low: $3,438 NZD|High: $8,137 NZD|Avg: $4,929 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
Retailer 12
November 5, 2026
Retailer 10$3,449 NZD
Retailer 12$4,145 NZD
Retailer 7$4,194 NZD
Retailer 3$4,234 NZD
Retailer 11$4,286 NZD
Retailer 6$4,466 NZD
Retailer 9$4,589 NZD
Retailer 5$4,854 NZD
Retailer 4$5,141 NZD
Retailer 2$5,599 NZD
Retailer 8$5,706 NZD
MOH London$8,018 NZD

32 data points across 12 retailers

16 retailers$4,025 NZD to $8,018 NZD

Retailer 1
-
$3,449 NZD
Price last confirmed 15 days ago
Retailer 2
-
$3,752 NZD
View
Price last confirmed 15 days ago
B
Retailer 3
-
$4,025 NZD
View
B
Retailer 4
-
$4,145 NZD
View
B
Retailer 5
-
$4,194 NZD
View
B
Retailer 6
-
$4,234 NZD
View
Final sale: no returns
B
Retailer 7
-
$4,286 NZD
View
B
Retailer 8
-
$4,466 NZD
View
B
Retailer 9
-
$4,546 NZD
View
Retailer 10
-
$4,589 NZD
View
Price last confirmed 13 days ago
B
Retailer 11
-
$4,842 NZD
View
B
Retailer 12
-
$4,854 NZD
View
Retailer 13
-
$5,141 NZD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$5,599 NZD
View
B
Retailer 15
-
$5,706 NZD
View
Most Expensive
C
MOH London
D7535BEB9 · Nov 4
$8,018 NZD
£3,500 GBP
View
15 more retailers have this diamond
Prices start from $4,025 NZDSave up to $3,994 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
1.00ct Cushion
$4,025 NZD