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Oval|Natural|GIA

0.40ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 2556646965

Certificate GIA 2556646965

Diamond specifications and retailer prices

From £334 GBP
HK$3,500 HKD
As of October 30, 2026
Save £446 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £780 GBP at MOH London · As of October 29, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2556646965. Listed at 11 retailers as of October 29, 2026, with prices from £334 to £780, a £446 spread on the same certified stone. MOH London lists it at £780. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556646965
Dimensions5.65 × 4.08 × 2.64 mm
L/W Ratio1.38
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.65 mm4.08 mm0.40 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556646965
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £780 GBP|Low: £286 GBP|High: £785 GBP|Avg: £467 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9£286 GBP
Retailer 6£334 GBP
Retailer 5£343 GBP
Retailer 7£370 GBP
Retailer 3£418 GBP
Retailer 8£434 GBP
Retailer 4£509 GBP
Retailer 2£682 GBP
MOH London£780 GBP

39 data points across 9 retailers

11 retailers£334 GBP to £780 GBP

B+
Cheapest Retailer
-
£334 GBP
HK$3,500 HKD
B+
Retailer 2
-
£336 GBP
$450 USD
View
B+
Retailer 3
-
£343 GBP
$459 USD
View
B
Retailer 4
-
£362 GBP
$485 USD
View
B
Retailer 5
-
£387 GBP
$519 USD
View
B
Retailer 6
-
£418 GBP
View
B
Retailer 7
-
£434 GBP
$581 USD
View
B
Retailer 8
-
£509 GBP
€649 EUR
View
C
Retailer 9
-
£682 GBP
View
Most Expensive
C
MOH London
A8CFC0F73 · Oct 29
£780 GBP
View
9 more retailers have this diamond
Prices start from £334 GBPSave up to £446 GBP

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.

B+
0.40ct Oval
£334 GBP