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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1437577148

Certificate GIA 1437577148

Diamond specifications and retailer prices

From €1,491 EUR
As of November 5, 2026
Save €1,778 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,269 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1437577148. Listed at 19 retailers as of November 4, 2026, with prices from €1,491 to €3,269, a €1,778 spread on the same certified stone. MOH London lists it at €3,269. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1437577148
Dimensions6.29 × 5.26 × 3.55 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Feather, Crystal, Knot, Cavity, Indented Natural, Needle, Natural
Top View
6.29 mm5.26 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1437577148
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.6%

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 5
Current: €3,269 EUR|Low: €1,448 EUR|High: €3,295 EUR|Avg: €2,044 EUR|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5€1,497 EUR
Retailer 7€1,565 EUR
Retailer 9€1,581 EUR
Retailer 6€1,695 EUR
Retailer 2€1,815 EUR
Retailer 4€2,283 EUR
Retailer 8€2,306 EUR
Retailer 3€2,541 EUR
MOH London€3,269 EUR

38 data points across 9 retailers

19 retailers€1,491 EUR to €3,269 EUR

B+
Cheapest Retailer
-
€1,491 EUR
B+
Retailer 2
-
€1,497 EUR
View
B+
Retailer 3
-
€1,545 EUR
View
B+
Retailer 4
-
€1,565 EUR
View
Final sale: no returns
Retailer 5
-
€1,581 EUR
View
Price last confirmed 10 days ago
B+
Retailer 6
-
€1,585 EUR
View
B+
Retailer 7
-
€1,585 EUR
View
B+
Retailer 8
-
€1,635 EUR
View
B+
Retailer 9
-
€1,639 EUR
View
Retailer 10
-
€1,695 EUR
View
Price last confirmed 9 days ago
B
Retailer 11
-
€1,738 EUR
View
B
Retailer 12
-
€1,753 EUR
View
B+
Retailer 13
-
€1,815 EUR
View
B
Retailer 14
-
€2,000 EUR
View
B
Retailer 15
-
€2,050 EUR
View
B
Retailer 16
-
€2,283 EUR
View
Retailer 17
-
€2,306 EUR
View
Price last confirmed 33 days ago
B
Retailer 18
-
€2,541 EUR
View
Most Expensive
B
MOH London
C3CD0076E · Nov 4
€3,269 EUR
£2,874 GBP
View
18 more retailers have this diamond
Prices start from €1,491 EURSave up to €1,778 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
€1,491 EUR