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Cushion|Natural|GIA

1.01ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 1378934020

Certificate GIA 1378934020

Diamond specifications and retailer prices

From €1,723 EUR
As of November 6, 2026
Save €923 EUR (35%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,647 EUR at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1.01ct natural cushion diamond

This 1.01ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1378934020. Listed at 16 retailers as of November 6, 2026, with prices from €1,723 to €2,647, a €923 spread on the same certified stone. Washington Diamond lists it at €2,647. 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

1.01
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1378934020
Dimensions5.95 × 5.39 × 3.84 mm
L/W Ratio1.10
Culet sizeNone
Top View
5.95 mm5.39 mm1.01 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1378934020
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.3%

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: €2,487 EUR|Low: €1,666 EUR|High: €2,647 EUR|Avg: €1,969 EUR|+3.0%
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€1,666 EUR
Retailer 11€1,723 EUR
Retailer 6€1,727 EUR
Retailer 5€1,733 EUR
Retailer 13€1,808 EUR
Retailer 9€1,810 EUR
Retailer 15€1,858 EUR
Retailer 16€1,915 EUR
Retailer 10€2,006 EUR
Retailer 12€2,089 EUR
Retailer 3€2,090 EUR
Retailer 2€2,106 EUR
Retailer 4€2,123 EUR
Retailer 8€2,123 EUR
Retailer 7€2,194 EUR
Retailer 1€2,487 EUR
Washington Diamond€2,647 EUR

23 data points across 17 retailers

16 retailers€1,723 EUR to €2,647 EUR

B+
Cheapest Retailer
-
€1,723 EUR
B+
Retailer 2
-
€1,727 EUR
View
B+
Retailer 3
-
€1,733 EUR
View
B+
Retailer 4
-
€1,808 EUR
View
B+
Retailer 5
-
€1,810 EUR
View
B+
Retailer 6
-
€1,858 EUR
View
B
Retailer 7
-
€1,915 EUR
View
B
Retailer 8
-
€2,006 EUR
View
B
Retailer 9
-
€2,089 EUR
View
B
Retailer 10
-
€2,090 EUR
View
B
Retailer 11
-
€2,106 EUR
View
B
Retailer 12
-
€2,123 EUR
View
B
Retailer 13
-
€2,123 EUR
View
B
Retailer 14
-
€2,194 EUR
View
B
Retailer 15
-
€2,487 EUR
View
Most Expensive
Washington Diamond
1917992565 · Nov 6
€2,647 EUR
$2,955 USD
View
15 more retailers have this diamond
Prices start from €1,723 EURSave up to €923 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+
1.01ct Cushion
€1,723 EUR