Oval|Natural|GIA

0.40ct G SI2 Oval Natural Diamond

VG • G/SI2 • GIA 2557737642

Certificate GIA 2557737642

Diamond specifications and retailer prices

From $421 USD
As of October 29, 2026
Save $552 USD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $973 USD at MOH London · As of October 25, 2026
View at MOH London

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557737642. Listed at 13 retailers as of October 25, 2026, with prices from $421 to $973, a $552 spread on the same certified stone. MOH London lists it at $973. 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
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557737642
Dimensions4.26 × 5.83 × 2.47 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Feather
Top View
4.26 mm5.83 mm0.40 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557737642
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 57.9%

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: Oct 29
Current: $973 USD|Low: $421 USD|High: $984 USD|Avg: $569 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 8$421 USD
Retailer 12$440 USD
Retailer 10$453 USD
Retailer 3$486 USD
Retailer 9$486 USD
Retailer 5$519 USD
Retailer 11$552 USD
Retailer 7$561 USD
Retailer 6$595 USD
Retailer 2$691 USD
Retailer 4$737 USD
MOH London$973 USD

39 data points across 12 retailers

13 retailers$421 USD to $973 USD

A
Cheapest Retailer
-
$421 USD
B+
Retailer 2
-
$440 USD
SGD 595 SGD
View
B+
Retailer 3
-
$453 USD
View
B+
Retailer 4
-
$453 USD
View
B+
Retailer 5
-
$486 USD
View
B+
Retailer 6
-
$486 USD
View
B+
Retailer 7
-
$519 USD
£409 GBP
View
B
Retailer 8
-
$552 USD
View
B
Retailer 9
-
$561 USD
View
B
Retailer 10
-
$595 USD
£469 GBP
View
Price last confirmed 35 days ago
B
Retailer 11
-
$691 USD
€658 EUR
View
Most Expensive
B
MOH London
B0437BC8E · Oct 25
$973 USD
£766 GBP
View
11 more retailers have this diamond
Prices start from $421 USDSave up to $552 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 Oval
$421 USD