Oval|Natural|GIA

0.40ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 2556556504

Certificate GIA 2556556504

Diamond specifications and retailer prices

From $431 USD
SGD 583 SGD
As of October 29, 2026
Save $227 USD (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $658 USD at Yorxs · As of October 28, 2026
View at Yorxs

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556556504. Listed at 8 retailers as of October 28, 2026, with prices from $431 to $658, a $227 spread on the same certified stone. Yorxs lists it at $658. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.72°
Pavilion angle37.99°
OriginNatural
Grading LabGIA
CertificateGIA 2556556504
Dimensions6.26 × 4.00 × 2.40 mm
L/W Ratio1.56
Culet sizeNone
Top View
6.26 mm4.00 mm0.40 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556556504
Side View
Table 60.0%Crown 36.72°Girdle: STK-VTKPavilion 37.99°Culet: NoneDepth 59.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $526 USD|Low: $275 USD|High: $658 USD|Avg: $512 USD|+6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
October 30, 2026
Retailer 7$275 USD
Retailer 6$431 USD
Retailer 3$463 USD
Retailer 1$526 USD
Retailer 2$555 USD
Retailer 4$561 USD
Retailer 5$641 USD
Yorxs$658 USD

40 data points across 8 retailers

8 retailers$431 USD to $658 USD

B+
Cheapest Retailer
-
$431 USD
SGD 583 SGD
B+
Retailer 2
-
$463 USD
SGD 625 SGD
View
B
Retailer 3
-
$526 USD
£414 GBP
View
B+
Retailer 4
-
$555 USD
£437 GBP
View
B
Retailer 5
-
$561 USD
View
B
Retailer 6
-
$606 USD
View
B
Retailer 7
-
$641 USD
View
Most Expensive
B
Yorxs
537284026 · Oct 28
$658 USD
€627 EUR
View
7 more retailers have this diamond
Prices start from $431 USDSave up to $227 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.

B+
0.40ct Oval
$431 USD