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Cushion|Natural|GIA

0.40ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 2557639663

Certificate GIA 2557639663

Diamond specifications and retailer prices

From €459 EUR
$515 USD
As of November 1, 2026
Save €570 EUR (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,029 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557639663. Listed at 14 retailers as of November 1, 2026, with prices from €459 to €1,029, a €570 spread on the same certified stone. MOH London lists it at €1,029. 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

0.40
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557639663
Dimensions4.90 × 3.77 × 2.63 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud
Top View
4.90 mm3.77 mm0.40 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557639663
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.7%

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: €1,029 EUR|Low: €394 EUR|High: €1,041 EUR|Avg: €623 EUR|+20.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 12€459 EUR
Retailer 11€491 EUR
Retailer 4€526 EUR
Retailer 8€526 EUR
Retailer 6€560 EUR
Retailer 3€573 EUR
Retailer 5€586 EUR
Retailer 13€608 EUR
Retailer 10€625 EUR
Retailer 7€682 EUR
Retailer 9€707 EUR
Retailer 2€902 EUR
MOH London€1,029 EUR

35 data points across 13 retailers

14 retailers€459 EUR to €1,029 EUR

Retailer 1
-
€383 EUR
SGD 581 SGD
Price last confirmed 25 days ago
A
Retailer 2
-
€459 EUR
$515 USD
View
B+
Retailer 3
-
€491 EUR
$551 USD
View
B+
Retailer 4
-
€526 EUR
$590 USD
View
B+
Retailer 5
-
€526 EUR
$590 USD
View
B+
Retailer 6
-
€560 EUR
£495 GBP
View
B+
Retailer 7
-
€573 EUR
$643 USD
View
Retailer 8
-
€586 EUR
A$1,010 AUD
View
Price last confirmed 29 days ago
B
Retailer 9
-
€608 EUR
$682 USD
View
B
Retailer 10
-
€625 EUR
£552 GBP
View
B
Retailer 11
-
€682 EUR
View
B
Retailer 12
-
€707 EUR
ZAR 12,815 ZAR
View
C
Retailer 13
-
€902 EUR
£797 GBP
View
Most Expensive
C
MOH London
97C107CE1 · Nov 2
€1,029 EUR
£909 GBP
View
13 more retailers have this diamond
Prices start from €459 EURSave up to €570 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
0.40ct Cushion
€459 EUR