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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 2526130826

Certificate GIA 2526130826

Diamond specifications and retailer prices

From $1,440 NZD
As of November 6, 2026
Save $751 NZD (34%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,190 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2526130826. Listed at 9 retailers as of November 6, 2026, with prices from $1,440 to $2,190, a $751 spread on the same certified stone. GemTrove lists it at $2,190. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2526130826
Dimensions5.87 × 5.18 × 3.68 mm
L/W Ratio1.13
Top View
5.87 mm5.18 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526130826
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 71.1%

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: $2,190 NZD|Low: $1,320 NZD|High: $2,190 NZD|Avg: $1,793 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$1,440 NZD
Retailer 7$1,577 NZD
Retailer 9$1,620 NZD
Retailer 3$1,636 NZD
Retailer 5$1,735 NZD
Retailer 2$1,784 NZD
Retailer 4$1,789 NZD
Retailer 8$1,797 NZD
GemTrove$2,190 NZD

19 data points across 9 retailers

9 retailers$1,440 NZD to $2,190 NZD

A
Cheapest Retailer
-
$1,440 NZD
Final sale: no returns
B+
Retailer 2
-
$1,577 NZD
View
Retailer 3
-
$1,620 NZD
View
Price last confirmed 109 days ago
B+
Retailer 4
-
$1,636 NZD
View
B+
Retailer 5
-
$1,735 NZD
View
B+
Retailer 6
-
$1,784 NZD
View
B+
Retailer 7
-
$1,789 NZD
View
B+
Retailer 8
-
$1,797 NZD
View
Most Expensive
B+
GemTrove
GT-N-00979174-98 · Nov 6
$2,190 NZD
A$1,868 AUD
View
8 more retailers have this diamond
Prices start from $1,440 NZDSave up to $751 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
$1,440 NZD