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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6385370928

Certificate GIA 6385370928

Diamond specifications and retailer prices

From €1,576 EUR
As of November 4, 2026
Save €1,875 EUR (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €3,451 EUR at MOH London · As of November 4, 2026
View at MOH London

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 6385370928. Listed at 21 retailers as of November 4, 2026, with prices from €1,576 to €3,451, a €1,875 spread on the same certified stone. MOH London lists it at €3,451. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385370928
Dimensions6.68 × 5.35 × 3.55 mm
L/W Ratio1.25
Top View
6.68 mm5.35 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385370928
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 66.3%

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 4
Current: €3,451 EUR|Low: €1,377 EUR|High: €3,502 EUR|Avg: €2,159 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10€1,377 EUR
Retailer 6€1,576 EUR
Retailer 7€1,790 EUR
Retailer 3€1,916 EUR
Retailer 8€2,030 EUR
Retailer 2€2,146 EUR
Retailer 5€2,410 EUR
Retailer 9€2,428 EUR
Retailer 4€2,452 EUR
MOH London€3,451 EUR

41 data points across 10 retailers

21 retailers€1,576 EUR to €3,451 EUR

B+
Cheapest Retailer
-
€1,576 EUR
B+
Retailer 2
-
€1,605 EUR
View
B+
Retailer 3
-
€1,617 EUR
View
B+
Retailer 4
-
€1,681 EUR
View
B+
Retailer 5
-
€1,683 EUR
View
B+
Retailer 6
-
€1,726 EUR
View
Retailer 7
-
€1,790 EUR
View
Price last confirmed 9 days ago
B+
Retailer 8
-
€1,823 EUR
View
B+
Retailer 9
-
€1,844 EUR
View
B+
Retailer 10
-
€1,916 EUR
View
B
Retailer 11
-
€1,967 EUR
View
B
Retailer 12
-
€2,030 EUR
View
B
Retailer 13
-
€2,078 EUR
View
B
Retailer 14
-
€2,078 EUR
View
B
Retailer 15
-
€2,146 EUR
View
B
Retailer 16
-
€2,150 EUR
View
B
Retailer 17
-
€2,410 EUR
View
Retailer 18
-
€2,428 EUR
View
Price last confirmed 32 days ago
B
Retailer 19
-
€2,452 EUR
View
B
Retailer 20
-
€2,837 EUR
View
Most Expensive
B
MOH London
4AE842D31 · Nov 4
€3,451 EUR
£3,034 GBP
View
20 more retailers have this diamond
Prices start from €1,576 EURSave up to €1,875 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
€1,576 EUR