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Oval|Natural|GIA

0.40ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 2557857621

Certificate GIA 2557857621

Diamond specifications and retailer prices

From HK$3,240 HKD
$413 USD
As of October 30, 2026
Save HK$6,013 HKD (65%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$9,253 HKD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded I 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 2557857621. Listed at 7 retailers as of October 30, 2026, with prices from HK$3,240 to HK$9,253, a HK$6,013 spread on the same certified stone. Diamond Exchange Canada lists it at HK$9,253. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557857621
Dimensions5.98 × 4.00 × 2.55 mm
L/W Ratio1.50
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.98 mm4.00 mm0.40 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2557857621
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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: HK$9,253 HKD|Low: HK$3,240 HKD|High: HK$9,253 HKD|Avg: HK$5,421 HKD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5HK$3,240 HKD
Retailer 6HK$3,855 HKD
Retailer 7HK$4,080 HKD
Retailer 2HK$5,315 HKD
Retailer 3HK$5,330 HKD
Retailer 4HK$7,742 HKD
Diamond Exchange CanadaHK$9,253 HKD

38 data points across 7 retailers

7 retailersHK$3,240 HKD to HK$9,253 HKD

B+
Cheapest Retailer
-
HK$3,240 HKD
$413 USD
B
Retailer 2
-
HK$3,855 HKD
$491 USD
View
B
Retailer 3
-
HK$4,080 HKD
$520 USD
View
C
Retailer 4
-
HK$5,315 HKD
£533 GBP
View
C
Retailer 5
-
HK$5,330 HKD
€647 EUR
View
Retailer 6
-
HK$7,742 HKD
£777 GBP
View
Price last confirmed 21 days ago
Most Expensive
C
Diamond Exchange Canada
1981546507 · Oct 30
HK$9,253 HKD
CA$1,638 CAD
View
6 more retailers have this diamond
Prices start from HK$3,240 HKDSave up to HK$6,013 HKD

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
HK$3,240 HKD