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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 1379930764

Certificate GIA 1379930764

Diamond specifications and retailer prices

From $4,387 NZD
As of November 4, 2026
Save $2,399 NZD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,786 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 G 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 1379930764. Listed at 17 retailers as of November 4, 2026, with prices from $4,387 to $6,786, a $2,399 spread on the same certified stone. Washington Diamond lists it at $6,786. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379930764
Dimensions6.06 × 5.18 × 3.71 mm
L/W Ratio1.17
Key to symbols
Cloud, Feather, Crystal, Indented Natural
Top View
6.06 mm5.18 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379930764
Side View
Table 68.0%CrownGirdle: - VPavilionCulet: NoneDepth 71.7%

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 4
Current: $6,308 NZD|Low: $4,295 NZD|High: $6,786 NZD|Avg: $5,097 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 10$4,338 NZD
Retailer 14$4,387 NZD
Retailer 15$4,510 NZD
Retailer 11$4,526 NZD
Retailer 8$4,584 NZD
Retailer 7$4,688 NZD
Retailer 9$4,899 NZD
Retailer 16$4,988 NZD
Retailer 3$4,997 NZD
Retailer 4$5,320 NZD
Retailer 13$5,340 NZD
Retailer 12$5,496 NZD
Retailer 6$5,628 NZD
Retailer 5$5,655 NZD
Retailer 2$5,809 NZD
Retailer 1$6,308 NZD
Washington Diamond$6,786 NZD

25 data points across 17 retailers

17 retailers$4,387 NZD to $6,786 NZD

Retailer 1
-
$4,338 NZD
Price last confirmed 17 days ago
B+
Retailer 2
-
$4,387 NZD
View
B+
Retailer 3
-
$4,526 NZD
View
B
Retailer 4
-
$4,584 NZD
View
B
Retailer 5
-
$4,688 NZD
View
B
Retailer 6
-
$4,899 NZD
View
B
Retailer 7
-
$4,988 NZD
View
B
Retailer 8
-
$4,997 NZD
View
B
Retailer 9
-
$5,320 NZD
View
B
Retailer 10
-
$5,340 NZD
View
B
Retailer 11
-
$5,496 NZD
View
B
Retailer 12
-
$5,628 NZD
View
B
Retailer 13
-
$5,628 NZD
View
B
Retailer 14
-
$5,655 NZD
View
B
Retailer 15
-
$5,809 NZD
View
B
Retailer 16
-
$6,308 NZD
View
Most Expensive
Washington Diamond
1917992628 · Nov 6
$6,786 NZD
$3,762 USD
View
16 more retailers have this diamond
Prices start from $4,387 NZDSave up to $2,399 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
$4,387 NZD