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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 €2,178 EUR
As of November 4, 2026
Save €1,191 EUR (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,369 EUR 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 €2,178 to €3,369, a €1,191 spread on the same certified stone. Washington Diamond lists it at €3,369. 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: €3,132 EUR|Low: €2,133 EUR|High: €3,369 EUR|Avg: €2,531 EUR|+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€2,154 EUR
Retailer 14€2,178 EUR
Retailer 15€2,239 EUR
Retailer 11€2,247 EUR
Retailer 8€2,276 EUR
Retailer 7€2,328 EUR
Retailer 9€2,433 EUR
Retailer 16€2,476 EUR
Retailer 3€2,481 EUR
Retailer 4€2,641 EUR
Retailer 13€2,651 EUR
Retailer 12€2,729 EUR
Retailer 6€2,794 EUR
Retailer 5€2,808 EUR
Retailer 2€2,884 EUR
Retailer 1€3,132 EUR
Washington Diamond€3,369 EUR

25 data points across 17 retailers

17 retailers€2,178 EUR to €3,369 EUR

Retailer 1
-
€2,154 EUR
Price last confirmed 17 days ago
B+
Retailer 2
-
€2,178 EUR
View
B+
Retailer 3
-
€2,247 EUR
View
B
Retailer 4
-
€2,276 EUR
View
B
Retailer 5
-
€2,328 EUR
View
B
Retailer 6
-
€2,433 EUR
View
B
Retailer 7
-
€2,476 EUR
View
B
Retailer 8
-
€2,481 EUR
View
B
Retailer 9
-
€2,641 EUR
View
B
Retailer 10
-
€2,651 EUR
View
B
Retailer 11
-
€2,729 EUR
View
B
Retailer 12
-
€2,794 EUR
View
B
Retailer 13
-
€2,794 EUR
View
B
Retailer 14
-
€2,808 EUR
View
B
Retailer 15
-
€2,884 EUR
View
B
Retailer 16
-
€3,132 EUR
View
Most Expensive
Washington Diamond
1917992628 · Nov 6
€3,369 EUR
$3,762 USD
View
16 more retailers have this diamond
Prices start from €2,178 EURSave up to €1,191 EUR

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
€2,178 EUR