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Cushion|Natural|GIA

1.00ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5413612717

Certificate GIA 5413612717

Diamond specifications and retailer prices

From $1,449 NZD
As of November 6, 2026
Save $3,994 NZD (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,442 NZD at Adiamor · As of November 5, 2026
View at Adiamor

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5413612717. Listed at 13 retailers as of November 5, 2026, with prices from $1,449 to $5,442, a $3,994 spread on the same certified stone. Adiamor lists it at $5,442. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5413612717
Dimensions5.55 × 5.48 × 4.13 mm
L/W Ratio1.01
Top View
5.55 mm5.48 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5413612717
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 75.3%

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: $1,449 NZD|Low: $1,449 NZD|High: $3,831 NZD|Avg: $2,384 NZD|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$1,449 NZD
Retailer 7$1,501 NZD
Retailer 6$1,975 NZD
Retailer 9$2,067 NZD
Retailer 4$2,074 NZD
Retailer 2$2,114 NZD
Retailer 5$2,332 NZD
Retailer 3$2,874 NZD
Retailer 8$3,806 NZD

29 data points across 9 retailers

13 retailers$1,449 NZD to $5,442 NZD

A
Cheapest Retailer
-
$1,449 NZD
A
Retailer 2
-
$1,501 NZD
View
B+
Retailer 3
-
$1,975 NZD
View
Retailer 4
-
$2,067 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,074 NZD
View
B+
Retailer 6
-
$2,084 NZD
View
A
Retailer 7
-
$2,114 NZD
View
B+
Retailer 8
-
$2,293 NZD
View
B+
Retailer 9
-
$2,309 NZD
View
B+
Retailer 10
-
$2,332 NZD
View
B+
Retailer 11
-
$2,874 NZD
View
Retailer 12
-
$3,806 NZD
View
Price last confirmed 8 days ago
Most Expensive
C
Adiamor
D-51269128 · Nov 5
$5,442 NZD
$3,017 USD
View
12 more retailers have this diamond
Prices start from $1,449 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.

A
1.00ct Cushion
$1,449 NZD