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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 $659 SGD
$515 USD
As of November 1, 2026
Save $818 SGD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,476 SGD 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 $659 to $1,476, a $818 spread on the same certified stone. MOH London lists it at $1,476. 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: $1,476 SGD|Low: $565 SGD|High: $1,493 SGD|Avg: $894 SGD|+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$659 SGD
Retailer 11$705 SGD
Retailer 4$755 SGD
Retailer 8$755 SGD
Retailer 6$804 SGD
Retailer 3$822 SGD
Retailer 5$840 SGD
Retailer 13$872 SGD
Retailer 10$897 SGD
Retailer 7$979 SGD
Retailer 9$1,014 SGD
Retailer 2$1,294 SGD
MOH London$1,476 SGD

35 data points across 13 retailers

14 retailers$659 SGD to $1,476 SGD

Retailer 1
-
$550 SGD
Price last confirmed 25 days ago
A
Retailer 2
-
$659 SGD
$515 USD
View
B+
Retailer 3
-
$705 SGD
$551 USD
View
B+
Retailer 4
-
$755 SGD
$590 USD
View
B+
Retailer 5
-
$755 SGD
$590 USD
View
B+
Retailer 6
-
$804 SGD
£495 GBP
View
B+
Retailer 7
-
$822 SGD
$643 USD
View
Retailer 8
-
$840 SGD
A$1,010 AUD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$872 SGD
$682 USD
View
B
Retailer 10
-
$897 SGD
£552 GBP
View
B
Retailer 11
-
$979 SGD
€729 EUR
View
B
Retailer 12
-
$1,014 SGD
ZAR 12,815 ZAR
View
C
Retailer 13
-
$1,294 SGD
£797 GBP
View
Most Expensive
C
MOH London
97C107CE1 · Nov 2
$1,476 SGD
£909 GBP
View
13 more retailers have this diamond
Prices start from $659 SGDSave up to $818 SGD

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
$659 SGD