Oval|Natural|GIA

0.40ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 2556571966

Certificate GIA 2556571966

Diamond specifications and retailer prices

From £253 GBP
$339 USD
As of October 30, 2026
Save £431 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,130 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded H 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 2556571966. Listed at 12 retailers as of October 29, 2026, with a 170% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556571966
Dimensions5.76 × 4.18 × 2.62 mm
L/W Ratio1.38
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.76 mm4.18 mm0.40 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556571966
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.6%

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: Oct 30
Current: £1,130 GBP|Low: £253 GBP|High: £1,130 GBP|Avg: £484 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 9£253 GBP
Retailer 11£296 GBP
Retailer 10£317 GBP
Retailer 12£322 GBP
Retailer 3£340 GBP
Retailer 5£385 GBP
Retailer 4£392 GBP
Retailer 8£404 GBP
Retailer 7£534 GBP
Retailer 2£598 GBP
Retailer 6£684 GBP
NZ Jewellers£1,130 GBP

38 data points across 12 retailers

12 retailers£253 GBP to £684 GBP

A
Cheapest Retailer
-
£253 GBP
$339 USD
B+
Retailer 2
-
£295 GBP
$395 USD
View
B+
Retailer 3
-
£296 GBP
HK$3,100 HKD
View
B+
Retailer 4
-
£317 GBP
$425 USD
View
B
Retailer 5
-
£340 GBP
$456 USD
View
B
Retailer 6
-
£385 GBP
View
B
Retailer 7
-
£392 GBP
$526 USD
View
B
Retailer 8
-
£404 GBP
View
B
Retailer 9
-
£534 GBP
€682 EUR
View
B
Retailer 10
-
£598 GBP
View
C
Retailer 11
-
£684 GBP
View
Most Expensive
NZ Jewellers
e1ce1802-8d79-4dd6-b632-9200d03c2663 · Oct 30
£1,130 GBP
$1,514 USD
View
Price under review
11 more retailers have this diamond
Prices start from £253 GBPSave up to £431 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.

A
0.40ct Oval
£253 GBP