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Cushion|Natural|GIA

1.00ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1428230770

Certificate GIA 1428230770

Diamond specifications and retailer prices

From €1,690 EUR
$1,895 USD
As of November 1, 2026
Save €1,944 EUR (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €3,634 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428230770. Listed at 20 retailers as of November 1, 2026, with prices from €1,690 to €3,634, a €1,944 spread on the same certified stone. MOH London lists it at €3,634. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428230770
Dimensions5.77 × 5.26 × 3.75 mm
L/W Ratio1.10
Key to symbols
Cloud, Feather, Crystal, Needle, Indented Natural
Top View
5.77 mm5.26 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1428230770
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 71.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €3,634 EUR|Low: €1,445 EUR|High: €3,678 EUR|Avg: €2,268 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9€1,695 EUR
Retailer 6€1,734 EUR
Retailer 8€1,747 EUR
Retailer 5€1,879 EUR
Retailer 10€1,899 EUR
Retailer 3€2,276 EUR
Retailer 4€2,549 EUR
Retailer 7€2,553 EUR
Retailer 2€2,589 EUR
MOH London€3,634 EUR

43 data points across 10 retailers

20 retailers€1,690 EUR to €3,634 EUR

A
Cheapest Retailer
-
€1,690 EUR
$1,895 USD
A
Retailer 2
-
€1,694 EUR
$1,900 USD
View
A
Retailer 3
-
€1,695 EUR
$1,901 USD
View
A
Retailer 4
-
€1,698 EUR
$1,904 USD
View
A
Retailer 5
-
€1,734 EUR
$1,945 USD
View
Final sale: no returns
Retailer 6
-
€1,747 EUR
$1,960 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
€1,761 EUR
A$3,039 AUD
View
A
Retailer 8
-
€1,769 EUR
$1,984 USD
View
B+
Retailer 9
-
€1,829 EUR
$2,051 USD
View
B+
Retailer 10
-
€1,879 EUR
$2,107 USD
View
B+
Retailer 11
-
€1,899 EUR
$2,130 USD
View
B+
Retailer 12
-
€2,060 EUR
$2,311 USD
View
B+
Retailer 13
-
€2,175 EUR
$2,440 USD
View
B+
Retailer 14
-
€2,175 EUR
$2,440 USD
View
B+
Retailer 15
-
€2,247 EUR
$2,520 USD
View
B+
Retailer 16
-
€2,276 EUR
£2,010 GBP
View
B
Retailer 17
-
€2,549 EUR
ZAR 46,192 ZAR
View
Retailer 18
-
€2,553 EUR
A$4,406 AUD
View
Price last confirmed 26 days ago
B
Retailer 19
-
€2,589 EUR
View
Most Expensive
B
MOH London
22B3F1456 · Nov 2
€3,634 EUR
£3,209 GBP
View
19 more retailers have this diamond
Prices start from €1,690 EURSave up to €1,944 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.

A
1.00ct Cushion
€1,690 EUR