Cushion|Natural|GIA

0.40ct F SI2 Cushion Natural Diamond

GD • F/SI2 • GIA 1508431975

Certificate GIA 1508431975

Diamond specifications and retailer prices

From $310 USD
As of November 1, 2026
Save $380 USD (55%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $690 USD at MOH London · As of November 1, 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1508431975. Listed at 9 retailers as of November 1, 2026, with prices from $310 to $690, a $380 spread on the same certified stone. MOH London lists it at $690. 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
F
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1508431975
Dimensions4.67 × 4.06 × 2.84 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal
Top View
4.67 mm4.06 mm0.40 ctF / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1508431975
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $690 USD|Low: $310 USD|High: $829 USD|Avg: $488 USD|-16.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$310 USD
Retailer 9$327 USD
Retailer 2$341 USD
Retailer 4$381 USD
Retailer 5$409 USD
Retailer 7$429 USD
Retailer 8$470 USD
Retailer 3$566 USD
MOH London$690 USD

32 data points across 9 retailers

9 retailers$310 USD to $690 USD

A
Cheapest Retailer
-
$310 USD
A
Retailer 2
-
$327 USD
View
A
Retailer 3
-
$341 USD
View
B+
Retailer 4
-
$381 USD
£300 GBP
View
B+
Retailer 5
-
$409 USD
£322 GBP
View
B+
Retailer 6
-
$429 USD
View
B+
Retailer 7
-
$470 USD
View
B+
Retailer 8
-
$566 USD
€539 EUR
View
Most Expensive
B
MOH London
7EE6A8A5F · Nov 1
$690 USD
£543 GBP
View
8 more retailers have this diamond
Prices start from $310 USDSave up to $380 USD

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
$310 USD