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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 5373933999

Certificate GIA 5373933999

Diamond specifications and retailer prices

From $3,685 NZD
As of November 6, 2026
Save $2,019 NZD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,704 NZD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

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 5373933999. Listed at 17 retailers as of November 6, 2026, with prices from $3,685 to $5,704, a $2,019 spread on the same certified stone. Washington Diamond lists it at $5,704. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5373933999
Dimensions5.59 × 5.33 × 4.00 mm
L/W Ratio1.05
Top View
5.59 mm5.33 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5373933999
Side View
Table 71.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 75.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,358 NZD|Low: $3,579 NZD|High: $5,704 NZD|Avg: $4,224 NZD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Washington Diamond
November 6, 2026
Retailer 14$3,579 NZD
Retailer 11$3,685 NZD
Retailer 8$3,714 NZD
Retailer 7$3,730 NZD
Retailer 13$3,893 NZD
Retailer 9$3,902 NZD
Retailer 15$4,005 NZD
Retailer 4$4,077 NZD
Retailer 10$4,291 NZD
Retailer 12$4,465 NZD
Retailer 6$4,503 NZD
Retailer 2$4,528 NZD
Retailer 3$4,528 NZD
Retailer 5$4,537 NZD
Retailer 16$4,690 NZD
Retailer 1$5,358 NZD
Washington Diamond$5,704 NZD

24 data points across 17 retailers

17 retailers$3,685 NZD to $5,704 NZD

B+
Cheapest Retailer
-
$3,685 NZD
B+
Retailer 2
-
$3,714 NZD
View
B+
Retailer 3
-
$3,730 NZD
View
B+
Retailer 4
-
$3,857 NZD
View
B
Retailer 5
-
$3,893 NZD
View
B+
Retailer 6
-
$3,902 NZD
View
B
Retailer 7
-
$4,005 NZD
View
B
Retailer 8
-
$4,077 NZD
View
B
Retailer 9
-
$4,291 NZD
View
B
Retailer 10
-
$4,465 NZD
View
B
Retailer 11
-
$4,503 NZD
View
B
Retailer 12
-
$4,528 NZD
View
B
Retailer 13
-
$4,528 NZD
View
B
Retailer 14
-
$4,537 NZD
View
B
Retailer 15
-
$4,690 NZD
View
B
Retailer 16
-
$5,358 NZD
View
Most Expensive
Washington Diamond
1917992656 · Nov 6
$5,704 NZD
$3,162 USD
View
16 more retailers have this diamond
Prices start from $3,685 NZDSave up to $2,019 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
$3,685 NZD